Gravity: Ring 2D QR Code Scanner
This highly integrated QR code scanner can recognise common 1D codes and 2D codes. With its compact footprint, it employs the easy-to-connect DFRobot Gravity Interface and is equipped with a colourful indicator that feeds back the sensor recognition status by showing different colours.
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 and more.
It can be used in self-service vending machines, subway gates, access control, payment machines and other similar scenarios.
The product wiki is on hand to help you get started.
Connection Example – Arduino
Features
- Easy to use Gravity interface
- 3.3V/5V power supply
- I2C & UART supported
- Recognises common 1D codes and 2D codes
Specification
- 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)
Resources
- Product wiki
Package Contents
- 1x Ring 2D QR Code Scanner
- 1x Adapter Board
- 1x PH2.0 4-pin Dupont Wire (30cm)
