Review on 🕹️ Enhance Control with the HiLetgo 12V 40V Controller Switch Module by Stephen Pendergrass

I use 3 of these in my telescope remote: 2 as dew heater controls and 1 to power the peltier cooler for the cameras. All three are working great after six months. Note that the three pins on the white connector connect directly to the potentiometer. This gives you the ability to read the current position of the potentiometer into an A/D circuit (e.g. Arduino). In one of mine I cut the trace between the center pin of the potentiometer and the onboard chip, connected the chip to the center pin of the SPDT switch, connected the center pin of the potentiometer to a terminal on the switch and the Arduino analog output pin to pin. Other. So I can turn the switch towards the pot to activate manual control or turn the switch away from the pot to activate digital control.