Wemo light switch wiring diagram
Nice write up, and I have done this with my printer (also swapped out the bed as I had an issue with the original bed being wrapped, the new one is a 200W at 12 volts pad + plate vs the PCB style),
but I … Being able to manually switch between internal and external speakers at will is certainly better than hard wiring both to be on simultaneously, but obviously, that’s far more
complicated and probably beyond most people’s ability. In this project, you're going to learn how to control the ESP8266 or the ESP32 with voice commands using Alexa (Amazon Echo Dot). As an example, we'll control two 12V lamps connected to a relay module. We'll also add two 433 MHz RF wall panel switches to physically control the lamps. Awesome! Almost works perfectly… I can run codesend from the command line to toggle my switch on and off, but it doesn’t work from the web… The distance from my power monitor to the House Controller was through a number of walls and proved to be too much for the little XBee to do. I installed an intermediate XBee roughly half way between the two devices and the store-forward capabilities of the XBees took care of the problem nicely.