Reference: RBD-2388
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The GM77 Barcode and QR Code Scanning Module is a compact, high-performance 1D/2D code reader designed for fast and reliable decoding. Featuring a 0.3MP CMOS sensor with white LED illumination and red focus lighting, it delivers superior recognition even in low-light conditions. Its intelligent sensing capability automatically detects and scans codes, achieving speeds up to 15m/min for seamless operation. With dual communication interfaces (TTL-232 and USB), plug-and-play functionality, and broad OS compatibility, it’s easy to integrate into embedded systems, kiosks, and automation devices. Supporting a wide range of barcode and QR formats, including PDF417, Data Matrix, and Aztec, the GM77 module is ideal for applications in mobile payments, access control, vending systems, and smart retail. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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High-Speed Scanning: Reads barcodes and 2D codes at up to 15m/min.
Automatic Sensing: Auto-detects and scans codes without manual triggering.
Advanced Optics: 0.3MP CMOS sensor with white and red LED lighting ensures accurate decoding.
Wide Code Compatibility: Supports a large range of 1D and 2D formats, including QR, PDF417, and Aztec.
Plug and Play: No drivers needed; works instantly via USB or TTL-232.
Compact Design: Small 48.5×27.5×14mm form factor allows easy integration.
Low-Light Efficiency: Reliable operation under ambient light up to 100,000 lux.
Cross-Platform Support: Works with Windows, Linux, Android, and Mac.
Industrial-Grade Build: Durable, high-accuracy performance across wide temperature and humidity ranges.
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Mobile Payment Systems: Integrate for scanning payment QR codes in kiosks or vending machines.
Access Control: Read employee or visitor codes for smart entry systems.
Self-Service Retail: Ideal for checkout kiosks and ticketing machines.
Warehouse Automation: Use for product identification and inventory control.
Industrial Machines: Embed for real-time code recognition in automated lines.
IoT Devices: Perfect for smart gateways requiring barcode data capture.
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| General Specifications | |
| Model | GM77 |
| Sensor | 0.3MP CMOS (640 × 480) |
| Illumination | White LED |
| Focus | Red LED |
| Scan Speed | 15m/min |
| Reading Accuracy | ≥4mil |
| Reading Depth (EAN-13) | 50–200mm (13mil) |
| Reading Depth (QR Code) | 25–200mm (20mil) |
| Reading Depth (PDF417) | 30–120mm (6.67mil) |
| Field of View | 47° (H), 36° (V) |
| Scanning Angle | 360° rotation, ±55° elevation, ±55° deflection |
| Contrast Sensitivity | ≥25% |
| Supported 1D Codes | EAN, UPC, Code 39, Code 93, Code 128, Codabar, ITF-6, ITF-14, ISBN, MSI, GS1 Databar, etc. |
| Supported 2D Codes | QR, Micro QR, Data Matrix, PDF417, Micro PDF417, Aztec |
| Interfaces | TTL-232, USB (HID-KBW, Virtual Serial) |
| Voltage | DC 5V |
| Current Consumption | 180mA (working), USB 50mA standby, TTL 10mA standby |
| Ambient Light Tolerance | 0–100,000 lux |
| Operating Temperature | -20°C ~ 50°C |
| Storage Temperature | -40°C ~ 70°C |
| Operating Humidity | 5%–95% (non-condensing) |
| Dimensions | 48.5 × 27.5 × 14 mm |
| Shipment Weight | 0.045 kg |
| Shipment Dimensions | 5 × 4 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x GM77 Barcode and QR Code Scanning Module
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