The BHonofre is a tiny wifi switch with 2 relays that is made to fit inside a switch box. It is not UL listed, so in the US you are taking on some risk if you use it this way. One thing I love about it is they give you easy access to all the other GPIO pins on the wifi chip, so it is easy to connect other devices and sensors. On this one I’m using 2 capacitive touch sensors, one PIR Motion Sensor and a Dallas Temperature sensor. The firmware it comes with is pretty good, and comes ready to use with MQTT and Home Assistant or your Smart Home hub of choice. Since I already installed one with the stock firmware, this time I decided to exchange the firmware for an ESPhome sketch. The BHonofre is one of a new breed of tiny, dual relay, smart switches that includes the new Sonoff Mini, the Shelly 2.5 and some other lesser known brands. I expect we’ll be seeing more switches like this that easily allow you to make your existing “dumb” light switches more smarter.

BHonofre:
https://bhonofre.pt/buy-onofre.xhtml
https://github.com/brunohorta82/BH_OnOfre

ESPhome Yaml file:
https://gist.github.com/Snipercaine/e4726c5c4834e754c96f69200489c023

Capacitive Touch Buttons:
Amazon: https://amzn.to/2SH85L5
AliExpress: http://s.click.aliexpress.com/e/bWyM9Jpm
Banggood: http://drzzs.com/CapTouchButtons

PIR Sensor:
Banggood - http://drzzs.com/BruhPIR
Amazon - https://amzn.to/2EiUJi5
AliExpress - http://s.click.aliexpress.com/e/cfginXC8

Dallas Temperature Sensor:
Banggood: http://drzzs.com/DallasTemp
Amazon: https://amzn.to/2LQzJor
AliExpress: http://s.click.aliexpress.com/e/ci6SKE0Y

Resistor pack:
AliExpress: http://s.click.aliexpress.com/e/b0S4CMlE
Amazon: https://amzn.to/2LJ3xmM
Banggood: http://drzzs.com/Resistors