Quote:
Originally Posted by shuhao
Is it legal to wire something to the analog in to check the voltage?
|
There is the possibility of a custom circuit that looks at the absolute value of the average voltage supplied to the motor. As mentioned above, the output of the speed controllers change reference (with respect to battery) with direction. However, if you want really accurate results, nothing satisfies this better that an encoder connected to the driven device or some form of tachometer. We find that opto-couplers work great for this application.