GM77 Barcode and QR Code Scanning Module

GM77 Barcode and QR Code Scanning Module — DFRobot — SEN0512

Compact scanning module reading 1D (EAN, Code 128, etc.) and 2D (QR, Data Matrix, PDF417, Aztec) codes via TTL-232 or USB (HID/virtual serial); 5 V, 640×480 CMOS, 360° reading angle. Auto-sensing trigger; 48.5×27.5×14 mm form factor.

Start wiring

USB · UART · I2C · 3.3 V · Module

Verify supply voltage and logic levels before powering up.

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Pi CSI modules, USB cameras, MCU-class OV2640/OV5640 boards, on-camera AI like HuskyLens and OpenMV, and thermal or ToF imagers — over 130 listings across very different pipelines.

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