README.md
View this project on CADLAB.io.

AC Relay



It is a relay controlled by an ESP8266 and a push button. It is powered by the main AC.

Firmwares

Test

This firmware allows you to test the hardware if needed. It will change the relay status each 400 millisenconds when the button is pressed and it will send the push button status via serial communication.

AdafruitIO

This firmware is based in the Adafruit example for comumnicate with its MQTT broker called AdafruitIO. You can see more in ]]>io.adafruit.com]]>

In order to use it you should set:


Your WiFi setting
You Adafruit user name
API Key from Adafruit IO
The MQTT feed which will be used in Adafruit IO


MQTT

This firmware allows you to communicate with a MQTT broker. For example, you can install your own MQTT broker in a Raspberry Pi.

This is the actual firmware that I am using at home with this circuit, and it is prepared for being working 24/7. It does:


Recovery after a power failure.
Wake up message
Reconnect message
Serial debug
WiFi reconnect if the signal is lost
MQTT Broker reconnect if the signal is lost


For future revisions


LED: LED as IO instead of Power LED
ESP8266: ESP8266 as SoC instead of the ESP8266-12E module
UPS: Uninterrupted Power System. Cesar Fernández idea
Capacitive button: A capacitive external button that acts as the push button


]]>]]>Home AC relay by Enrique Gómez licensed by ]]>Creative Commons Attribution-ShareAlike 4.0 International License]]>.