moved stuff + scanner com/hid edits

2026-03-17 17:25:14 -03:00
parent 9cf0792866
commit 0fcb8ce473
1228 changed files with 382 additions and 151555 deletions
--- a/extensions/golang/DataToolsGO/.gitignore
+++ b/extensions/golang/DataToolsGO/.gitignore
@@ -0,0 +1,2 @@
+config.json
+imageTools-*
--- a/extensions/golang/DataToolsGO/build.sh
+++ b/extensions/golang/DataToolsGO/build.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Define binary names
+LINUX_BIN="imageTools-linux"
+LINUX_ARM_BIN="imageTools-linuxARMv7"
+WINDOWS_BIN="imageTools-windows.exe"
+
+echo "Starting build process..."
+
+# Build for Linux (64-bit)
+echo "Building for Linux..."
+GOOS=linux GOARCH=amd64 go build -o "$LINUX_BIN" main.go
+
+if [ $? -eq 0 ]; then
+    echo "Successfully built: $LINUX_BIN"
+else
+    echo "Failed to build Linux binary"
+    exit 1
+fi
+
+# Build for Windows (64-bit)
+echo "Building for Windows..."
+GOOS=windows GOARCH=amd64 go build -o "$WINDOWS_BIN" main.go
+
+if [ $? -eq 0 ]; then
+    echo "Successfully built: $WINDOWS_BIN"
+else
+    echo "Failed to build Windows binary"
+    exit 1
+fi
+
+# Build for Linux ARM (ARMv7)
+echo "Building for Linux ARMv7..."
+GOOS=linux GOARCH=arm GOARM=7 go build -o "$LINUX_ARM_BIN" main.go
+if [ $? -eq 0 ]; then
+    echo "Successfully built: $LINUX_ARM_BIN"
+else
+    echo "Failed to build Linux ARMv7 binary"
+    exit 1
+fi
+
+echo "Build complete."
--- a/extensions/golang/DataToolsGO/go.mod
+++ b/extensions/golang/DataToolsGO/go.mod
@@ -0,0 +1,5 @@
+module dataTools
+
+go 1.25.7
+
+require github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646
--- a/extensions/golang/DataToolsGO/go.sum
+++ b/extensions/golang/DataToolsGO/go.sum
@@ -0,0 +1,2 @@
+github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
+github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
--- a/extensions/golang/DataToolsGO/main.go
+++ b/extensions/golang/DataToolsGO/main.go
@@ -0,0 +1,84 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"image"
+	"image/jpeg"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/nfnt/resize"
+)
+
+func main() {
+	// Command line arguments
+	dirPath := flag.String("dir", "./", "Directory containing images")
+	maxWidth := flag.Uint("width", 1000, "Maximum width for resizing")
+	quality := flag.Int("quality", 75, "JPEG quality (1-100)")
+	flag.Parse()
+
+	files, err := os.ReadDir(*dirPath)
+	if err != nil {
+		fmt.Printf("Error reading directory: %v\n", err)
+		return
+	}
+
+	fmt.Printf("Processing images in %s (Max Width: %d, Quality: %d)\n", *dirPath, *maxWidth, *quality)
+
+	for _, file := range files {
+		if file.IsDir() {
+			continue
+		}
+
+		ext := strings.ToLower(filepath.Ext(file.Name()))
+		if ext != ".jpg" && ext != ".jpeg" && ext != ".png" {
+			continue
+		}
+
+		filePath := filepath.Join(*dirPath, file.Name())
+		processImage(filePath, *maxWidth, *quality)
+	}
+
+	fmt.Println("Done. Your storage can finally breathe again.")
+}
+
+func processImage(path string, maxWidth uint, quality int) {
+	file, err := os.Open(path)
+	if err != nil {
+		fmt.Printf("Failed to open %s: %v\n", path, err)
+		return
+	}
+
+	img, _, err := image.Decode(file)
+	file.Close()
+	if err != nil {
+		fmt.Printf("Failed to decode %s: %v\n", path, err)
+		return
+	}
+
+	// Only resize if original is wider than maxWidth
+	bounds := img.Bounds()
+	var finalImg image.Image
+	if uint(bounds.Dx()) > maxWidth {
+		finalImg = resize.Resize(maxWidth, 0, img, resize.Lanczos3)
+		fmt.Printf("Resized and compressed: %s\n", filepath.Base(path))
+	} else {
+		finalImg = img
+		fmt.Printf("Compressed (no resize needed): %s\n", filepath.Base(path))
+	}
+
+	// Overwrite the original file
+	out, err := os.Create(path)
+	if err != nil {
+		fmt.Printf("Failed to create output file %s: %v\n", path, err)
+		return
+	}
+	defer out.Close()
+
+	err = jpeg.Encode(out, finalImg, &jpeg.Options{Quality: quality})
+	if err != nil {
+		fmt.Printf("Failed to encode %s: %v\n", path, err)
+	}
+}
--- a/extensions/golang/MPStudyGO/go.mod
+++ b/extensions/golang/MPStudyGO/go.mod
@@ -0,0 +1,8 @@
+module MPPOS
+
+go 1.25.7
+
+require (
+	github.com/google/uuid v1.6.0
+	github.com/joho/godotenv v1.5.1
+)
--- a/extensions/golang/MPStudyGO/go.sum
+++ b/extensions/golang/MPStudyGO/go.sum
@@ -0,0 +1,4 @@
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
--- a/extensions/golang/MPStudyGO/main.go
+++ b/extensions/golang/MPStudyGO/main.go
@@ -0,0 +1,143 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/joho/godotenv"
+)
+
+// Request structures based on MP documentation
+type PrintRequest struct {
+	Type              string      `json:"type"`
+	ExternalReference string      `json:"external_reference"`
+	Config            PrintConfig `json:"config"`
+	Content           string      `json:"content"`
+}
+
+type PrintConfig struct {
+	Point PointSettings `json:"point"`
+}
+
+type PointSettings struct {
+	TerminalID string `json:"terminal_id"`
+	Subtype    string `json:"subtype"`
+}
+
+func main() {
+	err := godotenv.Load("../.env")
+	if err != nil {
+		fmt.Println("Error loading .env file")
+	}
+
+	// Example receipt using supported tags: {b}, {center}, {br}, {s}
+	receiptContent := "{center}{b}SEKIPOS VENTA{/b}{br}" +
+		"--------------------------------{br}" +
+		"{left}Producto: Choripan Premium{br}" +
+		"{left}Total: $5.500{br}" +
+		"--------------------------------{br}" +
+		"{center}{s}Gracias por su compra{/s}{br}"
+
+	resp, err := SendPrintAction(receiptContent)
+	if err != nil {
+		fmt.Printf("Error: %v\n", err)
+		return
+	}
+	fmt.Printf("Response: %s\n", resp)
+}
+
+func SendPrintAction(content string) (string, error) {
+	apiURL := "https://api.mercadopago.com/terminals/v1/actions"
+	accessToken := os.Getenv("MP_ACCESS_TOKEN")
+	terminalID := os.Getenv("MP_TERMINAL_ID")
+
+	payload := PrintRequest{
+		Type:              "print", // Required
+		ExternalReference: fmt.Sprintf("ref_%d", time.Now().Unix()),
+		Config: PrintConfig{
+			Point: PointSettings{
+				TerminalID: terminalID,
+				Subtype:    "custom", // For text with tags
+			},
+		},
+		Content: content, // Must be 100-4096 chars
+	}
+
+	jsonData, _ := json.Marshal(payload)
+
+	req, _ := http.NewRequest("POST", apiURL, bytes.NewBuffer(jsonData))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+accessToken)
+	// Mandatory Unique UUID V4
+	req.Header.Set("X-Idempotency-Key", uuid.New().String())
+
+	client := &http.Client{Timeout: 10 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	body, _ := io.ReadAll(resp.Body)
+
+	if resp.StatusCode != http.StatusCreated && resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("MP Error %d: %s", resp.StatusCode, string(body))
+	}
+
+	return string(body), nil
+}
+
+func PartialRefund(orderID string, paymentID string, amount string) (string, error) {
+	// Endpoint para reembolsos según la referencia de API
+	apiURL := fmt.Sprintf("https://api.mercadopago.com/v1/orders/%s/refund", orderID)
+	token := os.Getenv("MP_ACCESS_TOKEN")
+
+	payload := map[string]interface{}{
+		"transactions": []map[string]string{
+			{
+				"id":     paymentID,
+				"amount": amount, // Debe ser un string sin decimales
+			},
+		},
+	}
+
+	body, _ := json.Marshal(payload)
+	req, _ := http.NewRequest("POST", apiURL, bytes.NewBuffer(body))
+	req.Header.Set("Authorization", "Bearer "+token)
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("X-Idempotency-Key", uuid.New().String())
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	resBody, _ := io.ReadAll(resp.Body)
+	return string(resBody), nil
+}
+
+func GetOrderStatus(orderID string) (string, error) {
+	apiURL := fmt.Sprintf("https://api.mercadopago.com/v1/orders/%s", orderID)
+	token := os.Getenv("MP_ACCESS_TOKEN")
+
+	req, _ := http.NewRequest("GET", apiURL, nil)
+	req.Header.Set("Authorization", "Bearer "+token)
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	resBody, _ := io.ReadAll(resp.Body)
+	return string(resBody), nil
+}
--- a/extensions/golang/ScannerCOM/.gitignore
+++ b/extensions/golang/ScannerCOM/.gitignore
@@ -0,0 +1,2 @@
+config.json
+COMScannerGO-*
--- a/extensions/golang/ScannerCOM/build.sh
+++ b/extensions/golang/ScannerCOM/build.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Define binary names
+LINUX_BIN="COMScannerGO-linux"
+LINUX_ARM_BIN="COMScannerGO-linuxARMv7"
+WINDOWS_BIN="COMScannerGO-windows.exe"
+
+echo "Starting build process..."
+
+# Build for Linux (64-bit)
+echo "Building for Linux..."
+GOOS=linux GOARCH=amd64 go build -o "$LINUX_BIN" main.go
+
+if [ $? -eq 0 ]; then
+    echo "Successfully built: $LINUX_BIN"
+else
+    echo "Failed to build Linux binary"
+    exit 1
+fi
+
+# Build for Windows (64-bit)
+echo "Building for Windows..."
+GOOS=windows GOARCH=amd64 go build -o "$WINDOWS_BIN" main.go
+
+if [ $? -eq 0 ]; then
+    echo "Successfully built: $WINDOWS_BIN"
+else
+    echo "Failed to build Windows binary"
+    exit 1
+fi
+
+# Build for Linux ARM (ARMv7)
+echo "Building for Linux ARMv7..."
+GOOS=linux GOARCH=arm GOARM=7 go build -o "$LINUX_ARM_BIN" main.go
+if [ $? -eq 0 ]; then
+    echo "Successfully built: $LINUX_ARM_BIN"
+else
+    echo "Failed to build Linux ARMv7 binary"
+    exit 1
+fi
+
+echo "Build complete."
--- a/extensions/golang/ScannerCOM/go.mod
+++ b/extensions/golang/ScannerCOM/go.mod
@@ -0,0 +1,7 @@
+module ScannerGO
+
+go 1.24.0
+
+require github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07
+
+require golang.org/x/sys v0.41.0 // indirect
--- a/extensions/golang/ScannerCOM/go.sum
+++ b/extensions/golang/ScannerCOM/go.sum
@@ -0,0 +1,4 @@
+github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07 h1:UyzmZLoiDWMRywV4DUYb9Fbt8uiOSooupjTq10vpvnU=
+github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
--- a/extensions/golang/ScannerCOM/main.go
+++ b/extensions/golang/ScannerCOM/main.go
@@ -0,0 +1,175 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/tarm/serial"
+)
+
+type Config struct {
+	Port        string `json:"port"`
+	URL         string `json:"url"`
+	BaudRate    int    `json:"baud"`
+	Delimiter   string `json:"delimiter"`
+	FlowControl string `json:"flow_control"`
+}
+
+var defaultConfig = Config{
+	Port:        "/dev/ttyACM0",
+	URL:         "https://scanner.sekidesu.xyz/scan",
+	BaudRate:    115200,
+	Delimiter:   "\n",
+	FlowControl: "none",
+}
+
+const configPath = "config.json"
+
+func main() {
+	cfg := loadConfig()
+
+	portName := flag.String("port", cfg.Port, "Serial port name")
+	endpoint := flag.String("url", cfg.URL, "Target URL endpoint")
+	baudRate := flag.Int("baud", cfg.BaudRate, "Baud rate")
+	delim := flag.String("delim", cfg.Delimiter, "Line delimiter")
+	flow := flag.String("flow", cfg.FlowControl, "Flow control: none, hardware, software")
+	save := flag.Bool("save", false, "Save current parameters to config.json")
+	flag.Parse()
+
+	cfg.Port = *portName
+	cfg.URL = *endpoint
+	cfg.BaudRate = *baudRate
+	cfg.Delimiter = *delim
+	cfg.FlowControl = *flow
+
+	if *save {
+		saveConfig(cfg)
+		fmt.Println("Settings saved to", configPath)
+	}
+
+	serialConfig := &serial.Config{
+		Name:        cfg.Port,
+		Baud:        cfg.BaudRate,
+		ReadTimeout: time.Millisecond * 500,
+	}
+
+	// tarm/serial uses boolean flags for flow control if available in the version used
+	// If your version doesn't support these fields, you may need to update the package
+	// or manage the lines manually via the file descriptor.
+	/* Note: tarm/serial usually requires specific fork or version
+	   for full RTS/CTS hardware flow control support.
+	*/
+
+	port, err := serial.OpenPort(serialConfig)
+	if err != nil {
+		fmt.Printf("Error opening port %s: %v\n", cfg.Port, err)
+		os.Exit(1)
+	}
+	defer port.Close()
+
+	fmt.Printf("Listening on %s (Baud: %d, Flow: %s)...\n", cfg.Port, cfg.BaudRate, cfg.FlowControl)
+
+	scanner := bufio.NewScanner(port)
+
+	scanner.Split(func(data []byte, atEOF bool) (advance int, token []byte, err error) {
+		if atEOF && len(data) == 0 {
+			return 0, nil, nil
+		}
+		if i := bytes.Index(data, []byte(cfg.Delimiter)); i >= 0 {
+			return i + len(cfg.Delimiter), data[0:i], nil
+		}
+		if atEOF {
+			return len(data), data, nil
+		}
+		return 0, nil, nil
+	})
+
+	for scanner.Scan() {
+		rawContent := scanner.Text()
+		content := strings.TrimFunc(rawContent, func(r rune) bool {
+			return r < 32 || r > 126
+		})
+
+		if content != "" {
+			sendToEndpoint(cfg.URL, content)
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		fmt.Printf("Scanner error: %v\n", err)
+	}
+}
+
+func loadConfig() Config {
+	if _, err := os.Stat(configPath); os.IsNotExist(err) {
+		saveConfig(defaultConfig)
+		return defaultConfig
+	}
+
+	file, err := os.Open(configPath)
+	if err != nil {
+		return defaultConfig
+	}
+	defer file.Close()
+
+	var cfg Config
+	decoder := json.NewDecoder(file)
+	if err := decoder.Decode(&cfg); err != nil {
+		return defaultConfig
+	}
+	if cfg.Delimiter == "" {
+		cfg.Delimiter = "\n"
+	}
+	if cfg.FlowControl == "" {
+		cfg.FlowControl = "none"
+	}
+	return cfg
+}
+
+func saveConfig(cfg Config) {
+	file, err := os.Create(configPath)
+	if err != nil {
+		fmt.Printf("Failed to create/save config: %v\n", err)
+		return
+	}
+	defer file.Close()
+
+	encoder := json.NewEncoder(file)
+	encoder.SetIndent("", "  ")
+	encoder.Encode(cfg)
+}
+
+func sendToEndpoint(baseURL, content string) {
+	client := &http.Client{
+		Timeout: 5 * time.Second,
+	}
+
+	fullURL := fmt.Sprintf("%s?content=%s", baseURL, url.QueryEscape(content))
+	resp, err := client.Get(fullURL)
+	if err != nil {
+		fmt.Printf("Network Error: %v\n", err)
+		return
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Printf("Error reading response: %v\n", err)
+		return
+	}
+
+	fmt.Printf("Data: [%s] | Status: %s\n", content, resp.Status)
+	if len(body) > 0 {
+		fmt.Printf("Response: %s\n", string(body))
+	}
+	fmt.Println(strings.Repeat("-", 30))
+}
--- a/extensions/golang/ScannerHID/.gitignore
+++ b/extensions/golang/ScannerHID/.gitignore
@@ -0,0 +1,2 @@
+config.json
+HIDScannerGO-*
--- a/extensions/golang/ScannerHID/build.sh
+++ b/extensions/golang/ScannerHID/build.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+LINUX_BIN="HIDScannerGO-linux"
+WINDOWS_BIN="HIDScannerGO-windows.exe"
+
+echo "Starting build process..."
+
+# 1. Build for Linux (Host)
+echo "Building for Linux (64-bit)..."
+CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -o "$LINUX_BIN" .
+
+# 2. Build for Windows (Needs MinGW)
+echo "Building for Windows (64-bit)..."
+# We must point to the mingw gcc and enable CGO
+CGO_ENABLED=1 GOOS=windows GOARCH=amd64 CC=x86_64-w64-mingw32-gcc \
+go build -ldflags="-H=windowsgui" -o "$WINDOWS_BIN" .
+
+echo "Build complete."
--- a/extensions/golang/ScannerHID/go.mod
+++ b/extensions/golang/ScannerHID/go.mod
@@ -0,0 +1,46 @@
+module ScannerGO
+
+go 1.24.0
+
+require (
+	fyne.io/fyne/v2 v2.7.3
+	gioui.org v0.9.0
+	github.com/google/gousb v1.1.3
+)
+
+require (
+	fyne.io/systray v1.12.0 // indirect
+	gioui.org/shader v1.0.8 // indirect
+	github.com/BurntSushi/toml v1.5.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/fredbi/uri v1.1.1 // indirect
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
+	github.com/fyne-io/gl-js v0.2.0 // indirect
+	github.com/fyne-io/glfw-js v0.3.0 // indirect
+	github.com/fyne-io/image v0.1.1 // indirect
+	github.com/fyne-io/oksvg v0.2.0 // indirect
+	github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71 // indirect
+	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a // indirect
+	github.com/go-text/render v0.2.0 // indirect
+	github.com/go-text/typesetting v0.3.3 // indirect
+	github.com/godbus/dbus/v5 v5.1.0 // indirect
+	github.com/hack-pad/go-indexeddb v0.3.2 // indirect
+	github.com/hack-pad/safejs v0.1.0 // indirect
+	github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade // indirect
+	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
+	github.com/nicksnyder/go-i18n/v2 v2.5.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rymdport/portal v0.4.2 // indirect
+	github.com/srwiley/oksvg v0.0.0-20221011165216-be6e8873101c // indirect
+	github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
+	github.com/yuin/goldmark v1.7.8 // indirect
+	golang.org/x/exp/shiny v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
+	golang.org/x/image v0.26.0 // indirect
+	golang.org/x/net v0.35.0 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/text v0.24.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
--- a/extensions/golang/ScannerHID/go.sum
+++ b/extensions/golang/ScannerHID/go.sum
@@ -0,0 +1,93 @@
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--- a/extensions/golang/ScannerHID/main.go
+++ b/extensions/golang/ScannerHID/main.go
@@ -0,0 +1,246 @@
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"image/color"
+	"net/http"
+	"os"
+	"time"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/app"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+	"github.com/google/gousb"
+)
+
+type Config struct {
+	TargetURL string `json:"target_url"`
+	VendorID  uint16 `json:"vendor_id"`
+	ProductID uint16 `json:"product_id"`
+}
+
+var hidMap = map[byte]string{
+	4: "a", 5: "b", 6: "c", 7: "d", 8: "e", 9: "f", 10: "g", 11: "h", 12: "i",
+	13: "j", 14: "k", 15: "l", 16: "m", 17: "n", 18: "o", 19: "p", 20: "q",
+	21: "r", 22: "s", 23: "t", 24: "u", 25: "v", 26: "w", 27: "x", 28: "y", 29: "z",
+	30: "1", 31: "2", 32: "3", 33: "4", 34: "5", 35: "6", 36: "7", 37: "8", 38: "9", 39: "0",
+	44: " ", 45: "-", 46: "=", 55: ".", 56: "/",
+}
+
+type BridgeApp struct {
+	urlEntry *widget.Entry
+	status   *canvas.Text
+	logList  *widget.List
+	logs     []string
+	window   fyne.Window
+	config   Config
+	isCLI    bool
+}
+
+func (b *BridgeApp) saveConfig() {
+	b.config.TargetURL = b.urlEntry.Text
+	data, _ := json.MarshalIndent(b.config, "", "  ")
+	_ = os.WriteFile("config.json", data, 0644)
+}
+
+func loadConfig() Config {
+	conf := Config{
+		TargetURL: "https://scanner.sekidesu.xyz/scan",
+		VendorID:  0xFFFF,
+		ProductID: 0x0035,
+	}
+	file, err := os.ReadFile("config.json")
+	if err == nil {
+		json.Unmarshal(file, &conf)
+	} else {
+		// Create default config if missing
+		data, _ := json.MarshalIndent(conf, "", "  ")
+		os.WriteFile("config.json", data, 0644)
+	}
+	return conf
+}
+
+func main() {
+	cliMode := flag.Bool("cli", false, "Run in CLI mode without GUI")
+	flag.Parse()
+
+	conf := loadConfig()
+	bridge := &BridgeApp{
+		config: conf,
+		isCLI:  *cliMode,
+	}
+
+	if *cliMode {
+		fmt.Println("Running in CLI mode...")
+		bridge.usbListenLoop()
+		return
+	}
+
+	a := app.New()
+	w := a.NewWindow("POS Hardware Bridge (Go)")
+	bridge.window = w
+	bridge.urlEntry = widget.NewEntry()
+	bridge.urlEntry.SetText(conf.TargetURL)
+	bridge.status = canvas.NewText("Status: Booting...", color.Black)
+	bridge.status.TextSize = 14
+
+	bridge.logList = widget.NewList(
+		func() int { return len(bridge.logs) },
+					func() fyne.CanvasObject { return widget.NewLabel("template") },
+					func(i widget.ListItemID, o fyne.CanvasObject) {
+						o.(*widget.Label).SetText(bridge.logs[i])
+					},
+	)
+
+	content := container.NewBorder(
+		container.NewVBox(
+			widget.NewLabel("Target POS Endpoint:"),
+				  bridge.urlEntry,
+		    bridge.status,
+		    widget.NewLabel("Activity Log:"),
+		),
+		nil, nil, nil,
+		bridge.logList,
+	)
+
+	w.SetContent(content)
+	w.Resize(fyne.NewSize(500, 400))
+
+	w.SetOnClosed(func() {
+		if !bridge.isCLI {
+			bridge.config.TargetURL = bridge.urlEntry.Text
+			data, err := json.MarshalIndent(bridge.config, "", "  ")
+			if err == nil {
+				_ = os.WriteFile("config.json", data, 0644)
+				fmt.Println("Configuration saved.")
+			}
+		}
+	})
+
+	go bridge.usbListenLoop()
+	w.ShowAndRun()
+}
+
+func (b *BridgeApp) addLog(msg string) {
+	ts := time.Now().Format("15:04:05")
+	formatted := fmt.Sprintf("[%s] %s", ts, msg)
+
+		if b.isCLI {
+			fmt.Println(formatted)
+			return
+		}
+
+		fyne.DoAndWait(func() {
+			b.logs = append([]string{formatted}, b.logs...)
+			if len(b.logs) > 15 {
+				b.logs = b.logs[:15]
+			}
+			b.logList.Refresh()
+		})
+}
+
+func (b *BridgeApp) updateStatus(msg string, col color.Color) {
+	if b.isCLI {
+		fmt.Printf("STATUS: %s\n", msg)
+		return
+	}
+	fyne.DoAndWait(func() {
+		b.status.Text = msg
+		b.status.Color = col
+		b.status.Refresh()
+	})
+}
+
+func (b *BridgeApp) sendToPos(barcode string) {
+	url := b.config.TargetURL
+	if !b.isCLI {
+		url = b.urlEntry.Text
+	}
+
+	b.addLog(fmt.Sprintf("Captured: %s. Sending to %s", barcode, url))
+	client := http.Client{Timeout: 3 * time.Second}
+	resp, err := client.Get(url + "?content=" + barcode)
+	if err != nil {
+		b.addLog("HTTP Error: Backend unreachable")
+		return
+	}
+	defer resp.Body.Close()
+	b.addLog(fmt.Sprintf("Success: POS returned %d", resp.StatusCode))
+}
+
+func (b *BridgeApp) usbListenLoop() {
+	ctx := gousb.NewContext()
+	defer ctx.Close()
+
+	for {
+		dev, err := ctx.OpenDeviceWithVIDPID(gousb.ID(b.config.VendorID), gousb.ID(b.config.ProductID))
+
+		if err != nil || dev == nil {
+			b.updateStatus("Scanner unplugged. Waiting...", color.NRGBA{200, 0, 0, 255})
+			time.Sleep(2 * time.Second)
+			continue
+		}
+
+		b.updateStatus("Scanner Locked & Ready", color.NRGBA{0, 180, 0, 255})
+
+		intf, done, err := dev.DefaultInterface()
+		if err != nil {
+			b.addLog("Error claiming interface")
+			dev.Close()
+			time.Sleep(2 * time.Second)
+			continue
+		}
+
+		var inEp *gousb.InEndpoint
+		for _, epDesc := range intf.Setting.Endpoints {
+			if epDesc.Direction == gousb.EndpointDirectionIn {
+				inEp, _ = intf.InEndpoint(epDesc.Number)
+				break
+			}
+		}
+
+		if inEp == nil {
+			b.addLog("No IN endpoint found")
+			done()
+			dev.Close()
+			continue
+		}
+
+		currentBarcode := ""
+		buf := make([]byte, inEp.Desc.MaxPacketSize)
+
+		for {
+			n, err := inEp.Read(buf)
+			if err != nil {
+				break
+			}
+			if n < 3 || buf[2] == 0 {
+				continue
+			}
+
+			modifier := buf[0]
+			keycode := buf[2]
+			isShift := (modifier == 2 || modifier == 32)
+
+			if keycode == 40 {
+				if currentBarcode != "" {
+					go b.sendToPos(currentBarcode)
+					currentBarcode = ""
+				}
+			} else if val, ok := hidMap[keycode]; ok {
+				if isShift && len(val) == 1 && val[0] >= 'a' && val[0] <= 'z' {
+					val = string(val[0] - 32)
+				}
+				currentBarcode += val
+			}
+		}
+
+		done()
+		dev.Close()
+		b.addLog("Hardware connection lost. Reconnecting...")
+	}
+}
--- a/extensions/platformio/IOT_Scale/.gitignore
+++ b/extensions/platformio/IOT_Scale/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
--- a/extensions/platformio/IOT_Scale/.vscode/extensions.json
+++ b/extensions/platformio/IOT_Scale/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}
--- a/extensions/platformio/IOT_Scale/include/README
+++ b/extensions/platformio/IOT_Scale/include/README
@@ -0,0 +1,37 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the convention is to give header files names that end with `.h'.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
--- a/extensions/platformio/IOT_Scale/lib/README
+++ b/extensions/platformio/IOT_Scale/lib/README
@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into the executable file.
+
+The source code of each library should be placed in a separate directory
+("lib/your_library_name/[Code]").
+
+For example, see the structure of the following example libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+Example contents of `src/main.c` using Foo and Bar:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+The PlatformIO Library Dependency Finder will find automatically dependent
+libraries by scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
--- a/extensions/platformio/IOT_Scale/platformio.ini
+++ b/extensions/platformio/IOT_Scale/platformio.ini
@@ -0,0 +1,17 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:waveshare_rp2040_zero]
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+board = waveshare_rp2040_zero
+framework = arduino
+monitor_speed = 115200
+lib_archive = no
+lib_deps = bogde/HX711@^0.7.5
--- a/extensions/platformio/IOT_Scale/src/main.cpp
+++ b/extensions/platformio/IOT_Scale/src/main.cpp
@@ -0,0 +1,32 @@
+#include <Arduino.h>
+#include "HX711.h"
+
+const int LOADCELL_SCK_PIN = 3;
+const int LOADCELL_DOUT_PIN = 2;
+
+const long LOADCELL_OFFSET = 0;
+const long LOADCELL_DIVIDER = 0;
+
+HX711 scale;
+
+void setup() {
+  Serial.begin(115200);
+  while(!Serial);
+
+  Serial.println("Remove all weight from the scale.");
+  delay(2000);
+  scale.set_scale();
+  scale.tare();
+  Serial.println("Tare complete. Place a known weight on the scale.");
+}
+
+void loop() {
+  if (scale.is_ready()) {
+    long reading = scale.get_units(10);
+    Serial.print("Raw Value: ");
+    Serial.println(reading);
+  } else {
+    Serial.println("HX711 not found.");
+  }
+  delay(1000);
+}
--- a/extensions/platformio/IOT_Scale/test/README
+++ b/extensions/platformio/IOT_Scale/test/README
@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html
--- a/extensions/platformio/display_driver/.gitignore
+++ b/extensions/platformio/display_driver/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
--- a/extensions/platformio/display_driver/.vscode/extensions.json
+++ b/extensions/platformio/display_driver/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}
--- a/extensions/platformio/display_driver/include/README
+++ b/extensions/platformio/display_driver/include/README
@@ -0,0 +1,37 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the convention is to give header files names that end with `.h'.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
--- a/extensions/platformio/display_driver/lib/README
+++ b/extensions/platformio/display_driver/lib/README
@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into the executable file.
+
+The source code of each library should be placed in a separate directory
+("lib/your_library_name/[Code]").
+
+For example, see the structure of the following example libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+Example contents of `src/main.c` using Foo and Bar:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+The PlatformIO Library Dependency Finder will find automatically dependent
+libraries by scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
--- a/extensions/platformio/display_driver/platformio.ini
+++ b/extensions/platformio/display_driver/platformio.ini
@@ -0,0 +1,17 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:waveshare_rp2040_zero]
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+board = waveshare_rp2040_zero
+framework = arduino
+monitor_speed = 115200
+lib_archive = no
+lib_deps = bogde/HX711@^0.7.5
--- a/extensions/platformio/display_driver/src/TM1621_Config.h
+++ b/extensions/platformio/display_driver/src/TM1621_Config.h
@@ -0,0 +1,50 @@
+#ifndef TM1621_CONFIG_H
+#define TM1621_CONFIG_H
+
+#include <Arduino.h>
+
+const uint8_t digitMap[] = {
+  0b11111100, // 0
+  0b00000110, // 1 
+  0b01011011, // 2
+  0b01001111, // 3
+  0b01100110, // 4
+  0b01101101, // 5
+  0b01111101, // 6
+  0b00000111, // 7
+  0b01111111, // 8
+  0b01101111  // 9
+};
+
+const int arrows[] = {283,363,183,203};    //tare,?,?,Zero
+const int battery[] = {63,83,103};         //LOW / MED / FULL
+
+// Following your pattern: {A, B, C, D, E, F, G}
+const int row1_d1[] = {300, 301, 302, 313, 312, 310, 311}; // Addresses 30 & 31
+const int row1_d2[] = {280, 281, 282, 293, 292, 290, 291}; // Addresses 28 & 29
+const int row1_d3[] = {260, 261, 262, 273, 272, 270, 271}; // Addresses 26 & 27
+const int row1_d4[] = {240, 241, 242, 253, 252, 250, 251}; // Addresses 24 & 25
+const int row1_d5[] = {220, 221, 222, 233, 232, 230, 231}; // Addresses 22 & 23
+const int row1_decimal[] = {263,232,223}; //XX.X.X.X
+
+const int row2_d1[] = {200, 201, 202, 213, 212, 210, 211}; // Addresses 20 & 21
+const int row2_d2[] = {180, 181, 182, 193, 192, 190, 191}; // Addresses 18 & 19
+const int row2_d3[] = {160, 161, 162, 173, 172, 170, 171}; // Addresses 16 & 17
+const int row2_d4[] = {140, 141, 142, 153, 152, 150, 151}; // Addresses 14 & 15
+const int row2_d5[] = {120, 121, 122, 133, 132, 130, 131}; // Addresses 12 & 13
+const int row2_decimal[] = {163,143,123}; //XX.X.X.X
+
+const int row3_d1[] = {100, 101, 102, 113, 112, 110, 111}; // Addresses 10 & 11
+const int row3_d2[] = {80, 81, 82, 93, 92, 90, 91};        // Addresses 8 & 9
+const int row3_d3[] = {60, 61, 62, 73, 72, 70, 71};        // Addresses 6 & 7
+const int row3_d4[] = {40, 41, 42, 53, 52, 50, 51};        // Addresses 4 & 5
+const int row3_d5[] = {20, 21, 22, 33, 32, 30, 31};        // Addresses 2 & 3
+const int row3_d6[] = {0, 1, 2, 13, 12, 10, 11};           // Addresses 0 & 1
+const int row3_decimal[] = {43,23,3};     //XX.X.X.X
+
+const int* digitsRow1[] = {row1_d1, row1_d2, row1_d3, row1_d4, row1_d5};
+const int* digitsRow2[] = {row2_d1, row2_d2, row2_d3, row2_d4, row2_d5};
+const int* digitsRow3[] = {row3_d1, row3_d2, row3_d3, row3_d4, row3_d5, row3_d6};
+
+const int* decimals[] = {row1_decimal, row2_decimal, row3_decimal};
+#endif
--- a/extensions/platformio/display_driver/src/main.cpp
+++ b/extensions/platformio/display_driver/src/main.cpp
@@ -0,0 +1,180 @@
+#include <Arduino.h>
+#include "TM1621_Config.h"
+
+#define LCD_DATA 29
+#define LCD_WR   28
+#define LCD_CS   27
+
+// Tracking variables
+int currentAddr = 0;
+int currentBit = 0;
+
+void writeBits(uint32_t data, uint8_t count) {
+  for (int8_t i = count - 1; i >= 0; i--) {
+    digitalWrite(LCD_WR, LOW);
+    digitalWrite(LCD_DATA, (data >> i) & 0x01);
+    digitalWrite(LCD_WR, HIGH);
+  }
+}
+
+void sendCmd(uint8_t cmd) {
+  digitalWrite(LCD_CS, LOW);
+  writeBits(0x04, 3);   // Binary 100 [cite: 432]
+  writeBits(cmd, 8);    // Command [cite: 413, 534]
+  writeBits(0, 1);      // X bit [cite: 416]
+  digitalWrite(LCD_CS, HIGH);
+}
+
+void writeAddr(uint8_t addr, uint8_t data) {
+  digitalWrite(LCD_CS, LOW);
+  uint16_t header = (0x05 << 6) | (addr & 0x3F); // Mode 101 [cite: 475]
+  writeBits(header, 9);
+  writeBits(data & 0x0F, 4); // 4 bits of data [cite: 475]
+  digitalWrite(LCD_CS, HIGH);
+}
+
+void updateDisplay() {
+  // Clear all segments first
+  for (int i = 0; i < 32; i++) {
+    writeAddr(i, 0x00);
+  }
+  // Light up only the current bit
+  writeAddr(currentAddr, (1 << currentBit));
+  
+  Serial.print(">>> CURRENT - Address: ");
+  Serial.print(currentAddr);
+  Serial.print(" | Bit (COM): ");
+  Serial.println(currentBit);
+  Serial.println("Enter 'n' for Next, 'p' for Prev:");
+}
+
+void setup() {
+  pinMode(LCD_DATA, OUTPUT);
+  pinMode(LCD_WR, OUTPUT);
+  pinMode(LCD_CS, OUTPUT);
+  digitalWrite(LCD_CS, HIGH); // Initialize serial interface [cite: 443]
+
+  Serial.begin(9600);
+  // while (!Serial); 
+
+  Serial.println("--- TM1621 Interactive Mapper ---");
+  
+  sendCmd(0x01); // SYS EN [cite: 534]
+  sendCmd(0x29); // BIAS 1/3, 4 COM [cite: 420, 544]
+  sendCmd(0x03); // LCD ON [cite: 534]
+
+  updateDisplay();
+}
+
+uint8_t shadowRAM[32] = {0}; 
+
+void writeMappedSegment(int aab, bool state) {
+  int addr = aab / 10;
+  int bit = aab % 10;
+  
+  if (state) shadowRAM[addr] |= (1 << bit);
+  else shadowRAM[addr] &= ~(1 << bit);
+
+  writeAddr(addr, shadowRAM[addr]);
+}
+
+void displayDigit(const int segments[], int number) {
+  uint8_t bits = digitMap[number % 10];
+  for (int i = 0; i < 7; i++) {
+    // We check Bit 0, then Bit 1, etc.
+    // This maps i=0 to Segment A, i=1 to Segment B...
+    bool state = (bits >> i) & 0x01; 
+    writeMappedSegment(segments[i], state);
+  }
+}
+
+void printToRow(int row, long value, int decimalPos = 0) {
+  const int** currentRow;
+  int numDigits;
+  
+  // Select row configuration
+  switch(row) {
+    case 1: currentRow = digitsRow1; numDigits = 5; break;
+    case 2: currentRow = digitsRow2; numDigits = 5; break;
+    case 3: currentRow = digitsRow3; numDigits = 6; break;
+    default: return;
+  }
+
+  // Display the number right-aligned
+  long tempValue = value;
+  for (int i = numDigits - 1; i >= 0; i--) {
+    if (tempValue > 0 || i == numDigits - 1) { // Show at least one digit
+      displayDigit(currentRow[i], tempValue % 10);
+      tempValue /= 10;
+    } else {
+      // Clear leading zeros (all segments off)
+      for (int s = 0; s < 7; s++) writeMappedSegment(currentRow[i][s], false);
+    }
+  }
+
+  // Handle Decimal Points (if applicable for that row)
+  if (decimalPos > 0 && decimalPos <= 3) {
+    writeMappedSegment(decimals[row-1][decimalPos-1], true);
+  }
+}
+
+int counter1 = 0;
+int counter2 = 0;
+int counter3 = 0;
+
+void loop() {
+  printToRow(1, counter1);
+  printToRow(2, counter2);
+  printToRow(3, counter3);
+
+  counter1 = (counter1 + 1) % 1000;
+  counter2 = (counter2 + 2) % 1000;
+  counter3 = (counter3 + 3) % 1000;
+  delay(100);
+}
+
+// void loop() {
+//   writeAddr(0, 0x00);
+//   writeAddr(1, 0x00);
+//   writeAddr(2, 0x00);
+//   writeAddr(3, 0x00);
+
+//   displayDigit(row1_d1, counter);
+
+//   Serial.println(counter);
+
+//   counter++;
+//   if (counter > 9) {
+//     counter = 0;
+//   }
+
+//   delay(1000); 
+// }
+
+// void loop() {
+//   if (Serial.available() > 0) {
+//     char input = Serial.read();
+    
+//     // Ignore newline/carriage return characters
+//     if (input == '\n' || input == '\r') return;
+
+//     if (input == 'n' || input == 'N') {
+//       currentBit++;
+//       if (currentBit > 3) {
+//         currentBit = 0;
+//         currentAddr++;
+//       }
+//       if (currentAddr > 31) currentAddr = 0;
+//       updateDisplay();
+//     } 
+//     else if (input == 'p' || input == 'P') {
+//       currentBit--;
+//       if (currentBit < 0) {
+//         currentBit = 3;
+//         currentAddr--;
+//       }
+//       if (currentAddr < 0) currentAddr = 31;
+//       updateDisplay();
+//     }
+//   }
+// }
--- a/extensions/platformio/display_driver/test/README
+++ b/extensions/platformio/display_driver/test/README
@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html
--- a/extensions/python/KeyGenerator/PLU+FSMA+list+v1.0.xlsx
+++ b/extensions/python/KeyGenerator/PLU+FSMA+list+v1.0.xlsx
--- a/extensions/python/KeyGenerator/createPDF.py
+++ b/extensions/python/KeyGenerator/createPDF.py
@@ -0,0 +1,164 @@
+import os
+import json
+import requests
+import barcode
+import urllib3
+import re
+from barcode.writer import ImageWriter
+from PIL import Image, ImageDraw, ImageFont
+from io import BytesIO
+
+# --- SETTINGS ---
+urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
+
+JSON_FILE = os.path.join(os.getcwd(), 'curated_list.json')
+CARD_DIR = os.path.join(os.getcwd(), 'keychain_cards')
+IMG_CACHE_DIR = os.path.join(os.getcwd(), 'image_cache')
+OUTPUT_PDF = os.path.join(os.getcwd(), 'keychain_3x3_perfect.pdf')
+
+# A4 at 300 DPI
+PAGE_W, PAGE_H = 2480, 3508
+COLS, ROWS = 3, 3
+PAGE_MARGIN = 150
+
+# Ensure directories exist
+for d in [CARD_DIR, IMG_CACHE_DIR]:
+    os.makedirs(d, exist_ok=True)
+
+def clean_filename(name):
+    return re.sub(r'[\\/*?:"<>|]', "_", name)
+
+def get_ean_from_plu(plu):
+    return f"000000{str(plu).zfill(4)}00"
+
+def get_cached_image(url, plu):
+    cache_path = os.path.join(IMG_CACHE_DIR, f"{plu}.jpg")
+
+    # Si el archivo ya existe en el cache, lo usamos sin importar la URL
+    if os.path.exists(cache_path):
+        return cache_path
+
+    # Si no existe y la URL es un placeholder, no podemos descargar nada
+    if url == "URL_PLACEHOLDER":
+        print(f"⚠️ {plu} tiene placeholder y no se encontró en {IMG_CACHE_DIR}")
+        return None
+
+    # Lógica de descarga original para URLs reales
+    try:
+        headers = {'User-Agent': 'Mozilla/5.0'}
+        res = requests.get(url, headers=headers, timeout=10, verify=False)
+        if res.status_code == 200:
+            with open(cache_path, 'wb') as f:
+                f.write(res.content)
+            return cache_path
+    except Exception as e:
+        print(f"❌ Error descargando {plu}: {e}")
+    return None
+
+def generate_card(item):
+    name = item['name']
+    plu = item['plu']
+    img_url = item['image']
+
+    safe_name = clean_filename(name).replace(' ', '_')
+    final_path = os.path.join(CARD_DIR, f"PLU_{plu}_{safe_name}.png")
+
+    if os.path.exists(final_path):
+        return final_path
+
+    local_img_path = get_cached_image(img_url, plu)
+    card = Image.new('RGB', (300, 450), color='white')
+    draw = ImageDraw.Draw(card)
+    draw.rectangle([0, 0, 299, 449], outline="black", width=3)
+
+    if local_img_path:
+        try:
+            img = Image.open(local_img_path).convert("RGB")
+            w, h = img.size
+            size = min(w, h)
+            img = img.crop(((w-size)//2, (h-size)//2, (w+size)//2, (h+size)//2))
+            img = img.resize((200, 200), Image.Resampling.LANCZOS)
+            card.paste(img, (50, 40))
+        except:
+            draw.text((150, 140), "[IMG ERROR]", anchor="mm", fill="red")
+    else:
+        draw.text((150, 140), "[NOT FOUND]", anchor="mm", fill="red")
+
+    try:
+        f_name = ImageFont.truetype("arialbd.ttf", 22)
+        f_plu = ImageFont.truetype("arial.ttf", 18)
+    except:
+        f_name = f_plu = ImageFont.load_default()
+
+    draw.text((150, 260), name.upper(), fill="black", font=f_name, anchor="mm")
+    draw.text((150, 295), f"PLU: {plu}", fill="#333333", font=f_plu, anchor="mm")
+
+    EAN = barcode.get_barcode_class('ean13')
+    ean = EAN(get_ean_from_plu(plu), writer=ImageWriter())
+    tmp = f"tmp_{plu}"
+    ean.save(tmp, options={'module_height': 12.0, 'font_size': 10, 'text_distance': 4})
+
+    if os.path.exists(f"{tmp}.png"):
+        b_img = Image.open(f"{tmp}.png")
+        b_img = b_img.resize((280, 120))
+        card.paste(b_img, (10, 320))
+        os.remove(f"{tmp}.png")
+
+    card.save(final_path)
+    print(f"    - Card created: {name} ({plu})")
+    return final_path
+
+def create_pdf():
+    all_files = sorted([f for f in os.listdir(CARD_DIR) if f.endswith('.png')])
+    if not all_files:
+        print("❌ No cards found to put in PDF.")
+        return
+
+    available_w = PAGE_W - (PAGE_MARGIN * 2)
+    available_h = PAGE_H - (PAGE_MARGIN * 2)
+    slot_w, slot_h = available_w // COLS, available_h // ROWS
+
+    target_w = int(slot_w * 0.9)
+    target_h = int(target_w * (450 / 300))
+
+    if target_h > (slot_h * 0.9):
+        target_h = int(slot_h * 0.9)
+        target_w = int(target_h * (300 / 450))
+
+    pages = []
+    current_page = Image.new('RGB', (PAGE_W, PAGE_H), 'white')
+
+    print(f"📄 Organizing {len(all_files)} cards into {COLS}x{ROWS} grid...")
+
+    for i, filename in enumerate(all_files):
+        item_idx = i % (COLS * ROWS)
+        if item_idx == 0 and i > 0:
+            pages.append(current_page)
+            current_page = Image.new('RGB', (PAGE_W, PAGE_H), 'white')
+
+        row, col = item_idx // COLS, item_idx % COLS
+        img_path = os.path.join(CARD_DIR, filename)
+        card_img = Image.open(img_path).convert('RGB')
+        card_img = card_img.resize((target_w, target_h), Image.Resampling.LANCZOS)
+
+        x = PAGE_MARGIN + (col * slot_w) + (slot_w - target_w) // 2
+        y = PAGE_MARGIN + (row * slot_h) + (slot_h - target_h) // 2
+        current_page.paste(card_img, (x, y))
+
+    pages.append(current_page)
+    pages[0].save(OUTPUT_PDF, save_all=True, append_images=pages[1:], resolution=300.0, quality=100)
+    print(f"✅ Created {OUTPUT_PDF}. Now go print it and stop crying.")
+
+if __name__ == "__main__":
+    if not os.path.exists(JSON_FILE):
+        print(f"❌ Missing {JSON_FILE}")
+    else:
+        with open(JSON_FILE, 'r', encoding='utf-8') as f:
+            data = json.load(f)
+
+        print(f"Step 1: Processing {len(data)} cards...")
+        for entry in data:
+            generate_card(entry)
+
+        print("\nStep 2: Generating PDF...")
+        create_pdf()
--- a/extensions/python/KeyGenerator/excel_parser.py
+++ b/extensions/python/KeyGenerator/excel_parser.py
@@ -0,0 +1,51 @@
+import pandas as pd
+import json
+import os
+
+file_path = os.path.join(os.getcwd(), 'PLU+FSMA+list+v1.0.xlsx')
+sheet_name = 'Non FTL' 
+new_url_base = "https://server-ifps.accurateig.com/assets/commodities/"
+
+def get_one_of_each():
+    if not os.path.exists(file_path):
+        print("❌ Excel file not found.")
+        return
+
+    # 1. Load Excel
+    df = pd.read_excel(file_path, sheet_name=sheet_name)
+
+    # 2. Drop rows missing the essentials
+    df = df.dropna(subset=['IMAGE', 'PLU', 'COMMODITY'])
+
+    # 3. CRITICAL: Drop duplicates by COMMODITY only
+    # This ignores Variety and Size, giving us exactly one row per fruit type.
+    df_unique = df.drop_duplicates(subset=['COMMODITY'], keep='first')
+
+    data_output = []
+
+    for _, row in df_unique.iterrows():
+        # Extract filename from the messy URL in Excel
+        original_link = str(row['IMAGE'])
+        filename = original_link.split('/')[-1]
+        
+        # Build the final working URL
+        image_url = f"{new_url_base}{filename}"
+        
+        # Get the clean Commodity name
+        commodity = str(row['COMMODITY']).title()
+        plu_code = str(row['PLU'])
+
+        data_output.append({
+            "name": commodity,
+            "plu": plu_code,
+            "image": image_url
+        })
+
+    # 4. Save to JSON
+    with open('one_of_each.json', 'w', encoding='utf-8') as f:
+        json.dump(data_output, f, indent=4, ensure_ascii=False)
+
+    print(f"✅ Success! Generated 'one_of_each.json' with {len(data_output)} unique commodities.")
+
+if __name__ == "__main__":
+    get_one_of_each()
--- a/extensions/python/ScannerCOM/scanner.py
+++ b/extensions/python/ScannerCOM/scanner.py
@@ -0,0 +1,41 @@
+import serial
+import requests
+import time
+
+# --- CONFIGURATION ---
+COM_PORT = 'COM5'  # Change to /dev/ttyUSB0 on Linux
+BAUD_RATE = 115200
+# The IP of the PC running your Flask WebUI
+SERVER_URL = "https://scanner.sekidesu.xyz/scan"  # Change to your server's URL
+
+def run_bridge():
+    try:
+        # Initialize serial connection
+        ser = serial.Serial(COM_PORT, BAUD_RATE, timeout=0.1)
+        print(f"Connected to {COM_PORT} at {BAUD_RATE} bauds.")
+        print("Ready to scan. Try not to break it.")
+
+        while True:
+            # Read line from scanner (most scanners send \r or \n at the end)
+            if ser.in_waiting > 0:
+                barcode = ser.readline().decode('utf-8').strip()
+                
+                if barcode:
+                    print(f"Scanned: {barcode}")
+                    try:
+                        # Send to your existing Flask server
+                        # We use the same parameter 'content' so your server doesn't know the difference
+                        resp = requests.get(SERVER_URL, params={'content': barcode})
+                        print(f"Server responded: {resp.status_code}")
+                    except Exception as e:
+                        print(f"Failed to send to server: {e}")
+            
+            time.sleep(0.01) # Don't melt your CPU
+
+    except serial.SerialException as e:
+        print(f"Error opening {COM_PORT}: {e}")
+    except KeyboardInterrupt:
+        print("\nBridge stopped by user. Quitter.")
+
+if __name__ == "__main__":
+    run_bridge()
--- a/extensions/python/ScannerCOM/scannerV2.py
+++ b/extensions/python/ScannerCOM/scannerV2.py
@@ -0,0 +1,36 @@
+import serial
+import requests
+import time
+import argparse
+import sys
+
+def run_bridge():
+    parser = argparse.ArgumentParser(description="Scanner Bridge for the technically impaired")
+    parser.add_argument('--port', default='COM5', help='Serial port (default: COM5)')
+    parser.add_argument('--baud', type=int, default=115200, help='Baud rate (default: 115200)')
+    parser.add_argument('--url', default='https://scanner.sekidesu.xyz/scan', help='Server URL')
+    args = parser.parse_args()
+
+    try:
+        ser = serial.Serial(args.port, args.baud, timeout=0.1)
+        print(f"Connected to {args.port} at {args.baud} bauds.")
+        
+        while True:
+            if ser.in_waiting > 0:
+                barcode = ser.readline().decode('utf-8', errors='ignore').strip()
+                if barcode:
+                    print(f"Scanned: {barcode}")
+                    try:
+                        resp = requests.get(args.url, params={'content': barcode}, timeout=5)
+                        print(f"Server responded: {resp.status_code}")
+                    except Exception as e:
+                        print(f"Failed to send to server: {e}")
+            time.sleep(0.01)
+
+    except serial.SerialException as e:
+        print(f"Error opening {args.port}: {e}")
+    except KeyboardInterrupt:
+        print("\nBridge stopped. Finally.")
+
+if __name__ == "__main__":
+    run_bridge()
--- a/extensions/python/ScannerHID/gui_scanner.py
+++ b/extensions/python/ScannerHID/gui_scanner.py
@@ -0,0 +1,155 @@
+import tkinter as tk
+from tkinter import ttk
+import threading
+import requests
+import usb.core
+import usb.util
+import usb.backend.libusb1
+import os
+import time
+
+VENDOR_ID = 0xFFFF
+PRODUCT_ID = 0x0035
+
+HID_MAP = {
+    4: 'a', 5: 'b', 6: 'c', 7: 'd', 8: 'e', 9: 'f', 10: 'g', 11: 'h', 12: 'i',
+    13: 'j', 14: 'k', 15: 'l', 16: 'm', 17: 'n', 18: 'o', 19: 'p', 20: 'q',
+    21: 'r', 22: 's', 23: 't', 24: 'u', 25: 'v', 26: 'w', 27: 'x', 28: 'y', 29: 'z',
+    30: '1', 31: '2', 32: '3', 33: '4', 34: '5', 35: '6', 36: '7', 37: '8', 38: '9', 39: '0',
+    44: ' ', 45: '-', 46: '=', 55: '.', 56: '/'
+}
+
+class POSBridgeApp:
+    def __init__(self, root):
+        self.root = root
+        self.root.title("POS Hardware Bridge")
+        self.root.geometry("500x320")
+        self.running = True
+        
+        # UI Setup
+        ttk.Label(root, text="Target POS Endpoint:").pack(pady=(15, 2))
+        self.url_var = tk.StringVar(value="https://scanner.sekidesu.xyz/scan")
+        self.url_entry = ttk.Entry(root, textvariable=self.url_var, width=60)
+        self.url_entry.pack(pady=5)
+        
+        self.status_var = tk.StringVar(value="Status: Booting...")
+        self.status_label = ttk.Label(root, textvariable=self.status_var, font=("Segoe UI", 10, "bold"))
+        self.status_label.pack(pady=10)
+        
+        ttk.Label(root, text="Activity Log:").pack()
+        self.log_listbox = tk.Listbox(root, width=70, height=8, bg="#1e1e1e", fg="#00ff00", font=("Consolas", 9))
+        self.log_listbox.pack(pady=5, padx=10)
+        
+        # Bind the close button to kill threads cleanly
+        self.root.protocol("WM_DELETE_WINDOW", self.on_close)
+
+        # Fire up the USB listener in a background thread
+        self.usb_thread = threading.Thread(target=self.usb_listen_loop, daemon=True)
+        self.usb_thread.start()
+
+    def log(self, message):
+        # Tkinter requires GUI updates to happen on the main thread
+        self.root.after(0, self._append_log, message)
+
+    def _append_log(self, message):
+        self.log_listbox.insert(0, time.strftime("[%H:%M:%S] ") + message)
+        if self.log_listbox.size() > 15:
+            self.log_listbox.delete(15)
+
+    def update_status(self, text, color="black"):
+        self.root.after(0, self._set_status, text, color)
+
+    def _set_status(self, text, color):
+        self.status_var.set(f"Status: {text}")
+        self.status_label.config(foreground=color)
+
+    def on_close(self):
+        self.running = False
+        self.root.destroy()
+
+    def send_to_pos(self, barcode):
+        url = self.url_var.get()
+        self.log(f"Captured: {barcode}. Sending...")
+        try:
+            resp = requests.get(url, params={'content': barcode}, timeout=3)
+            self.log(f"Success: POS returned {resp.status_code}")
+        except requests.RequestException as e:
+            self.log(f"HTTP Error: Backend unreachable")
+
+    def usb_listen_loop(self):
+        import sys
+        # PyInstaller extracts files to a temp _MEIPASS folder at runtime
+        if getattr(sys, 'frozen', False):
+            base_path = sys._MEIPASS
+        else:
+            base_path = os.path.dirname(os.path.abspath(__file__))
+            
+        dll_path = os.path.join(base_path, "libusb-1.0.dll")
+        
+        if not os.path.exists(dll_path):
+            self.update_status(f"CRITICAL: DLL missing at {dll_path}", "red")
+            return
+            
+        backend = usb.backend.libusb1.get_backend(find_library=lambda x: dll_path)
+        
+        while self.running:
+            # Reconnect loop
+            dev = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID, backend=backend)
+            
+            if dev is None:
+                self.update_status("Scanner unplugged. Waiting...", "red")
+                time.sleep(2)
+                continue
+                
+            try:
+                dev.set_configuration()
+                cfg = dev.get_active_configuration()
+                intf = cfg[(0,0)]
+                endpoint = usb.util.find_descriptor(
+                    intf,
+                    custom_match=lambda e: usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_IN
+                )
+                
+                self.update_status("Scanner Locked & Ready", "green")
+                current_barcode = ""
+                
+                # Active reading loop
+                while self.running:
+                    try:
+                        data = dev.read(endpoint.bEndpointAddress, endpoint.wMaxPacketSize, timeout=1000)
+                        
+                        keycode = data[2]
+                        modifier = data[0]
+                        is_shift = modifier == 2 or modifier == 32
+                        
+                        if keycode == 0:
+                            continue 
+                            
+                        if keycode == 40: # Enter key signifies end of scan
+                            if current_barcode:
+                                # Spawn a micro-thread for the HTTP request so we don't block the next scan
+                                threading.Thread(target=self.send_to_pos, args=(current_barcode,), daemon=True).start()
+                                current_barcode = ""
+                        elif keycode in HID_MAP:
+                            char = HID_MAP[keycode]
+                            if is_shift and char.isalpha():
+                                char = char.upper()
+                            current_barcode += char
+                            
+                    except usb.core.USBError as e:
+                        # 10060/110 are normal timeouts when no barcode is being actively scanned
+                        if e.args[0] in (10060, 110): 
+                            continue
+                        else:
+                            self.log(f"Hardware interrupt lost. Reconnecting...")
+                            break # Breaks inner loop to trigger outer reconnect loop
+                            
+            except Exception as e:
+                self.log(f"USB Error: {e}")
+                time.sleep(2) # Prevent rapid crash loops
+
+if __name__ == '__main__':
+    # You must run pip install requests if you haven't already
+    root = tk.Tk()
+    app = POSBridgeApp(root)
+    root.mainloop()
--- a/extensions/python/ScannerHID/libusb-1.0.dll
+++ b/extensions/python/ScannerHID/libusb-1.0.dll
--- a/extensions/python/checkHIDDevices.py
+++ b/extensions/python/checkHIDDevices.py
@@ -0,0 +1,25 @@
+import usb.core
+import usb.backend.libusb1
+import os
+
+# Grab the exact path to the DLL in your current folder
+current_dir = os.path.dirname(os.path.abspath(__file__))
+dll_path = os.path.join(current_dir, "libusb-1.0.dll")
+
+if not os.path.exists(dll_path):
+    print(f"I don't see the DLL at: {dll_path}")
+    exit(1)
+
+# Force pyusb to use this specific file
+backend = usb.backend.libusb1.get_backend(find_library=lambda x: dll_path)
+
+print("Scanning with forced local DLL backend...")
+devices = usb.core.find(find_all=True, backend=backend)
+
+found = False
+for d in devices:
+    found = True
+    print(f"Found Device -> VID: {hex(d.idVendor)} PID: {hex(d.idProduct)}")
+
+if not found:
+    print("Python is still blind. The DLL might be the wrong architecture (32-bit vs 64-bit).")
--- a/extensions/python/hidScanner.py
+++ b/extensions/python/hidScanner.py
@@ -0,0 +1,85 @@
+import usb.core
+import usb.util
+import usb.backend.libusb1
+import os
+import sys
+
+# Your exact scanner IDs
+VENDOR_ID = 0xFFFF
+PRODUCT_ID = 0x0035
+
+# Basic HID to ASCII translation dictionary
+HID_MAP = {
+    4: 'a', 5: 'b', 6: 'c', 7: 'd', 8: 'e', 9: 'f', 10: 'g', 11: 'h', 12: 'i',
+    13: 'j', 14: 'k', 15: 'l', 16: 'm', 17: 'n', 18: 'o', 19: 'p', 20: 'q',
+    21: 'r', 22: 's', 23: 't', 24: 'u', 25: 'v', 26: 'w', 27: 'x', 28: 'y', 29: 'z',
+    30: '1', 31: '2', 32: '3', 33: '4', 34: '5', 35: '6', 36: '7', 37: '8', 38: '9', 39: '0',
+    44: ' ', 45: '-', 46: '=', 55: '.', 56: '/'
+}
+
+def main():
+    # Force the local DLL backend
+    current_dir = os.path.dirname(os.path.abspath(__file__))
+    dll_path = os.path.join(current_dir, "libusb-1.0.dll")
+    
+    if not os.path.exists(dll_path):
+        print(f"Error: Missing {dll_path}")
+        sys.exit(1)
+        
+    backend = usb.backend.libusb1.get_backend(find_library=lambda x: dll_path)
+
+    # Find the scanner using the forced backend
+    dev = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID, backend=backend)
+
+    if dev is None:
+        print("Scanner not found. Check Zadig driver again.")
+        sys.exit(1)
+
+    # Claim device
+    dev.set_configuration()
+    cfg = dev.get_active_configuration()
+    intf = cfg[(0,0)]
+
+    endpoint = usb.util.find_descriptor(
+        intf,
+        custom_match=lambda e: usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_IN
+    )
+
+    print("Scanner locked. Waiting for barcodes...")
+    
+    current_barcode = ""
+
+    while True:
+        try:
+            # Read 8 bytes from the scanner
+            data = dev.read(endpoint.bEndpointAddress, endpoint.wMaxPacketSize, timeout=1000)
+            
+            keycode = data[2]
+            modifier = data[0]
+            is_shift = modifier == 2 or modifier == 32
+
+            if keycode == 0:
+                continue 
+                
+            if keycode == 40: # Enter key
+                print(f"Captured Barcode: {current_barcode}")
+                current_barcode = "" 
+            elif keycode in HID_MAP:
+                char = HID_MAP[keycode]
+                if is_shift and char.isalpha():
+                    char = char.upper()
+                current_barcode += char
+
+        except usb.core.USBError as e:
+            if e.args[0] == 10060 or e.args[0] == 110: 
+                continue
+            else:
+                print(f"USB Error: {e}")
+                break
+        except KeyboardInterrupt:
+            print("\nExiting and releasing scanner...")
+            usb.util.dispose_resources(dev)
+            break
+
+if __name__ == '__main__':
+    main()
--- a/extensions/python/migrateLegacyDB.py
+++ b/extensions/python/migrateLegacyDB.py
@@ -0,0 +1,29 @@
+import sqlite3
+
+DB_FILE = 'db/pos_database.db'
+
+def upgrade_db():
+    try:
+        with sqlite3.connect(DB_FILE) as conn:
+<<<<<<< HEAD
+=======
+            # Add stock column
+            # conn.execute("ALTER TABLE products ADD COLUMN stock REAL DEFAULT 0")
+            # print("Successfully added 'stock' column.")
+            
+            # # App.py also expects unit_type, adding it to prevent future headaches
+            # conn.execute("ALTER TABLE products ADD COLUMN unit_type TEXT DEFAULT 'unit'")
+            # print("Successfully added 'unit_type' column.")
+>>>>>>> 1a048a0e074ee26bd45dda9731c78c2ecef42fba
+
+            conn.execute("ALTER TABLE dicom ADD COLUMN image_url TEXT;")
+            print("Successfully added 'image_url' column.")
+
+            conn.commit()
+            print("Migration complete. Your data is intact.")
+            
+    except sqlite3.OperationalError as e:
+        print(f"Skipped: {e}. (This usually means the columns already exist, so you're fine).")
+
+if __name__ == '__main__':
+    upgrade_db()