Gravity: Ring 2D QR Code Scanner
Gravity: Ring 2D QR Code Scanner
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This highly integrated QR code scanner with excellent performance can recognize common 1D codes and 2D codes. With a small size, it employs easy-to-connect Gravity Interface and is equipped with a colorful indicator that feeds back the sensor recognition status by showing different colors.
Board-Overview
Operating at 3.3V/5V, the scanner is compatible with UART and I2C communication, which makes it easier to develop on controllers like Arduino, ESP32, Raspberry Pi, etc.
Connection-Diagram with DFRduino UNO R3
It can be used in self-service vending machines, subway gates, access control, payment machines, etc.
Features:
- Use-to-connect Gravity interface
- 3.3V/5V power supply
- I2C & UART supported
Applications:
- Self-service vending machines
- Subway gates
- Access control
- Payment machines
Specifications:
- Power Supply: DC3.3V/5V
- Working Current: <70mA
- Communication: I2C, UART
- Image Pixel: 640*480
- Light Source: colorful indicator/green light flashing prompt successful reading
- Code System: 1D: EAN13, EAN8, UPCA, UPCE0, UPCE1, Code128, Code39, Code93, CodeBar, Interleaved 2 of 5
- 2D: QR code, Data Matrix, PDF417
- Depth of Field: QR Code (25mm-150mm product performance may be affected to varying degrees due to barcode quality and environmental conditions)
- Contrast: ≥25%
- Reading Angle: roll 360°, pitch 55°, yaw 55°
- Scanning Angle: 69° (horizontal), 56° (vertical)
- Reading Accuracy: ≥5mil
- Working Temperature: 20°C ~60°C
- Storage Temperature: -40°C ~80°C
- Environment Light: 0~100000Lux
- Relative Humidity: 5% to 95% (non-condensing)
Documents:
Shipping List:
- Ring 2D QR Code Scanner x1
- Adapter Board x1
- PH2.0-4P Dupont Wire 30cm(Red Black Blue Green) x1
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