True 3-Way Smart Switch w/ Tasmota - No rewiring!






It's here!  A smart switch that works in several different 3 way wiring configurations without any rewiring or other tricks.  Swapping out one of the 3 way switches with this one is the only requirement.  This video also shows the details of using with Tasmota for local MQTT control with Home Assistant.

Moes 3-Way Smart Switch

Additional Parts for Flashing Tasmota if Needed
Soldering Iron Station
Helping Hands(as shown)
Alternative Upgraded Helping Hands
0.015 Solder
Female Jumper Wires
USB FTDI for Flashing

Amazon US Link

Tasmota Backlog Commands

backlog ssid1 NetWorkName;password1 MyPassword

backlog module 18;gpio4 21;gpio5 57;gpio12 30;gpio13 18;gpio14 9;switchtopic 0;switchmode1 0;buttontopic 0;rule1 on event#ON do power2 TOGGLE endon on event#OFF do power2 TOGGLE endon;rule1 1;

Check to make sure the entire backlog took by verifying the rule is configured by typing rule1 after the reboot!

Sample Home Assistant Config

- platform: mqtt
  name: "SW-HallWay"
  state_topic: "stat/SW-HallWay/POWER1"
  command_topic: "cmnd/SW-HallWay/EVENT"
  availability_topic: "tele/SW-HallWay/LWT"
  qos: 0
  payload_on: "ON"
  payload_off: "OFF"
  payload_available: "Online"
  payload_not_available: "Offline"
  retain: false

Take note of the slightly different command topic with the EVENT command.

Additional Links
Excellent guide with various 3 way wiring configurations
Tasmota Releases
Flash ESP8266
Termite Terminal App

Internal Pictures




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