Motion tracking device

For advanced features, the remote control has a three-axis gyro integrated with a three-axis accelerometer (U6).

Figure 1. Motion tracking device
Schematic: Smart Remote 3 for nRF52 product example motion tracking device

The circuit is connected to the MCU by the first I2C. If you want to use the second I2C, there are four solder bridges that you need to change. SB7 and SB8 have to be soldered and SB5 and SB6 have to be cut. This circuit is a ±250° per sec/±500° per sec/±1000° per sec/±2000° per sec selectable 3-axis gyro and a ±2 g/±4 g/±8 g/±16 g selectable three-axis accelerometer.