Fundamental board hardware test
Should be flashed together with the bootloader to weed out bad fundamental boards a early as possible.
Should do:
- Turn on magnetometer and show that a stream of data is coming out
- Check for all required I2C devices
- Show measured battery voltage and make sure it is in range
- Show a pass message after pressing the power button if points above are me
- Vibrate Motor
- Blink LEDs