This is a rugged enclosed chassis made of 1/8" thick aluminum to accept our IG42 motors. The aluminum is cut with our CNC plasma cutter for and exact fit-up and welded. The chassis accepts outboard bearings to take the wheel loads.
The InvenSense MPU-6050 sensor contains an accelerometer and a gyroscope in a single chip. It is very accurate, this sensor is used in self balancing robots, drones, smartphones, etc. The sensor uses the I2C-bus to interface with microcontroller.