Custom versions of Pilot-CAN are based on the yellowcog "Shalden" PCB. This PCB has multiple connectors and features on-board that are not normally available in the standard Pilot-CAN. This is because to wire all of the "spare" I/O pins to an external connector would, in general, lead to a more difficult to use standard product. The benefit of building a custom version of the Pilot-CAN is that extra features mounted inside the box then allows for seamless configuration via the Embedded Setup software. We have produced many bespoke versions including: humidy monitoring, door entry alerts, audio output as well as adding numerous PCB component sensors to CAN bus systems.