So this circuit is from my garage door opener. Basically it has 24VDC coming into it which runs directly back to the motor unit of the garage door opener. My limited understanding says that there is an IC in the motor unit that senses the short or short running through the caps (ie build up time). My question is: can I put an arduino in parallel to this circuit without screwing up the sensing, and will the arduino still function when one of those circuits is closed?
closed as too broad by JYelton, JRE, RoyC, Warren Hill, laptop2d Apr 25 at 16:46
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Can I put an arduino in parallel to this circuit without screwing up the sensing?
No. This circuit does not supply continuous DC power -- whatever it's doing to sense the buttons with capacitors would necessarily involve sending an intermittent signal of some sort. The decoupling capacitors present on the Arduino board might allow it to "ride through" the interruptions, but would interfere with this sensing.