Hello! I'm doing a project, and I can not produce an arduino code, the objective was to turn the lights on and off by the switch or the mobile phone, this for two lamps, I'm going to use Blynk, I'm using Nodemcu, 5V relays. I need help please.
Okay!
PS start by telling us what you tried, code etc.
What have you tried? Where's your code? Let's see your schematics.