OpenGarage › Forums › Hardware Questions › Relay – High on boot? › Reply To: Relay – High on boot? January 3, 2019 at 10:20 am #1383 tekbar7522Participant Thank you Ray. I just tested it by hooking up a multimeter to the nodemcu, and it stays at 0v (even when I reboot it). The volts only go up when I switch the door open/closed. I will order a relay that activates on high. Thanks for your help.
