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)