Appart from the connections mentioned before, Erle-Brain has additional ports:
This connector allows to connect external hardware to two GPIOs. It also supplies with 3v3.
Use this connector to access Erle-Brain CAN bus.
Erle-Brain also has a dedicated ADC bus, that contains two ADC channels. The connector also supplies 5 volts.
Warning: The range of input of the ADCs are 0~1.8v. Do not connect anything that exceeds this voltage.