I think I’m going to need two days on these boards to feel final about them. I’d like to really explain the circuit, pick some better values for the resistors and the capacitors, import the parts into my library, check the spacings on the headers….

So since the Rotary switch sort of looks like a trim potentiometer, I thought, why not add oner? The idea behind this circuit is if R1 is 1/2 the maximum resistance value of the sensor and the pot is the same as the resistance value of the sensor …

So switches, they’re easy. Two leads, and a pull up/down resistor depending. My requirements for this little board is that it be flexible as to what kind of data I’m going to feed a micro-controller (i.e. is actuated 5V or 0V) and that it make an …

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