Gravity: Ring 2D QR Code Scanner _MAKE_POWER_ACC Wire up to your favourite

Wire up to your favourite microcontroller (we suggest an Arduino) to the I2C data lines to set the transmit frequency and play line-level audio into the stereo headphone jack

Also take care not to contact any metal objects with the breakout to avoid shorting the battery (don't toss it in a box with other breakouts or conductive materials)

so you can tell John Connor to stay at home and play with his Raspberry Pi

Timer Code

You must ensure a common ground between your microcontroller and the LED Strip power supply

Gravity: Ring 2D QR Code Scanner _MAKE_POWER_ACC Wire up to your favouriteThis 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