Originally Posted by
xwingband
Why does radio interference matter? Who gives a flip?
The setup is correct though. The voltage is not... You'll need to use the LED's voltage not your overall battery voltage. The board is regulating the voltage for the LED so it will spit out whatever the LED wants. You'll either have to measure it with a variable current supply or rely on the "normal" specs and over resistor. I over resistor motors anyway. I find that you want to give it just enough power to spin, otherwise it's hard to tell the variable speed and it feels like you're holding an electric razor. A small adjustable pot if you could get one would be great, otherwise I'd say shoot for 10mA-20mA.
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