DFRobot Gravity: Ring 2D QR Code Scanner

DFRobot Gravity: Ring 2D QR Code Scanner is equipped with an indicator that feeds back the sensor recognition status by showing different colors. This scanner operates at 3.3V/5V and is compatible with UART and I²C communication which makes it easier to develop on controllers like Arduino, ESP32, and Raspberry Pi. Typical applications include self-service vending machines, subway gates, access control, and payment machine.

Features

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

Kit Contents

1x Ring 2D QR code scanner
1x Adapter board
1x PH2.0-4P Dupont wire 30cm (red black blue, and green)

Specifications

3.3V/5V power supply (DC)
<70mA working current
I²C and UART communication
640 x 480 image pixel
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)

≥25% contrast
Reading Angle:
- Roll 360°, pitch 55°, and yaw 55°
Scanning Angle:
- 69° (horizontal) and 56° (vertical)
≥5mil reading accuracy
20°C to 60°C working temperature range
-40°C to 80°C storage temperature range
0Lux to 100000Lux environment light
5% to 95% (non-condensing) relative humidity

Applications

Self-service vending machines
Subway gates

Access control
Payment machines

DFRobot Gravity: Ring 2D QR Code Scanner

Features

Kit Contents

Specifications

Applications

Connection-Diagram with DFRduino UNO R3

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