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Barcode Scanner Kit Bluetooth QR Code USB 2D 1D Scanner Module Built-in LED UART/TTL Communication Support ESP32 WiFi : Amazon.sg: Electronics
GitHub - tobozo/ESP32-BLECollector: ᛡᛒ BLE Scanner + Data persistence on SD Card for M5Stack, M5Core2, Odroid-Go, ESP32-Wrover-Kit and other models
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