Hi! I bought a few of these to control some fans and I would like to do it with my arduino. At the time i did not know it was a 500k ohm potmeter on those speed ctrl and thought i could replace it with a mcp4131 or similare, but i can only find 10k and 100k of these, and as a complete novice i'm n…

replace potmeter on motorctrl with digital potmeter to use arduino to controll

promacjoe2 November 3, 2017, 2:40pm 4

What is the voltage across your potentiometer, excluding the wiper (center pin). Digital potentiometers normally only work up to 5V.

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