Appendix A
Controller circuitry
Clock: 8MHz
Pin assignment of the three-pole input / output plugs:
•
The outer pin is the power output. It can be swithed on and off by the commands
powerOn
and
powerOff
.
•
The middle pin is ground.
•
The inner pin is the input signal pin. For analog input a voltage of between 0 and 5V
can be impressed. For digital input a voltage of 0 or 5V can be impressed.
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