Additionally, the crane has one ultrasound distance sensor and a radio, both attached to the hook (see below).
The layout of the motors attached to the motor boards are as follows:
The layout of the encoders are as follows:
The crane has one ultrasound sensor pointing downwards from the magnet. The ultrasound sensor is attached to Arduino pin
The crane robot has a radio receiver attached to the hook, which can be used to detect which container is below it.