Gravity: Ring 2D QR Code Scanner _MAKE_POWER_ACC Timer Code

Timer Code

and is enough to power a large room or a small lounge

3V (configured via jumper) Operating temperature -30°C ~ 80°C Storage temperature -45°C ~ 90°C Dimensions 65 x 30

1x Signal transfer board

Gravity: Ring 2D QR Code Scanner _MAKE_POWER_ACC Timer CodeThis 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