I use it as a compass on my arduino driven toy car, and make reset of the value when lower than 0 or +360.ĮDIT: here is my code, hope it may helps. There, you can have as a result, the relative position of the gyro from the start. 2 I have the following digital potentiometer: DS1803-100 which, according to the datasheet, can be controlled using a two-wire serial interface. To achieve what you want, you need to create a value into your code, detect the speed given by the gyro between a known delay, then divide the speed by the elapsed time. So it will give you value (positive or negative according to the direction of the rotation) different from zero when in motion, and 0 when at rest. Then, on your setup function, add Wire. You need to specify the device address in order to talk to the device.

As you might know i2c communication allows multiple devices to share the same connection, and each device will have a specific address in hex number between 0x00 and 0xFF. Gyro give you instant velocity of the circular motion. The OLED display is connected to the Arduino using i2c buses, so the wire library is used here.

Arduino using wire library