DFRobot - Gravity: Ring 2D QR Code Scanner

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.

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.

• Use-to-connect Gravity interface
• 3.3V/5V power supply
• I2C & UART supported

• Self-service vending machines
• Subway gates
• Access control
• Payment machines

• 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

• 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)

• Ring 2D QR Code Scanner x1
• Adapter Board x1
• PH2.0-4P Dupont Wire 30cm(Red Black Blue Green) x1