Quote:
Originally Posted by Dan Oelke
maybe there is a linear pot with much less turn ..... time to do some searching.
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Use mechanical means to turn 30 degrees into 225 degrees of mvement, such as gears (plastic works well)
Quote:
Originally Posted by Luan Motta
Sorry, I was not very specific, but we need a 3V, 180 degrees, 10KΩ potentiometer.
If you guys recommend me a potentiometer that the voltage will go from 0V to 5V, it doesn't matter the voltage, but we would like to have a 3V.
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Again, use mechanical means if 180 deg is desired, but IMHO 180 is plenty of rotation for a 270 pot.
As Ether noted: you connect one end of the pot to ground, the other end to whatever voltage you want (I very strongly recommend using the 5 volts from the sidecar) and the middle goes to an analog input. The voltage you read is proportional to the pot's position.
Have fun