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itProfi / ESP_WiFiSwitch

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ESP WiFiSwitch

General info

This sketch is for a WiFi enabled wall light switch with focus to reliable pushbutton switch. In the beginning or (if no WiFi connection) it is running a web server to configure WiFI (and MQTT if desired). The Light will be switched via GPIO2 connected to a Triac to switch a light/LED. The operation mode can be web server or MQTT to change the state of the light. The push button have to switch to ground.

Button functions

  • Normal press less than 1 sec but more than 50ms-> Switch light.
  • Restart press: 3 sec -> Restart the module.
  • Reset press: 20 sec -> Clear the settings in EEPROM

URL adresses

  • While a WiFi config is not set or can't connect:

    • http://server_ip *-> Gives a WiFi config page

  • While a WiFi config is set and in Web control mode (iotMode==0):

  • http://server_ip/gpio

  • Will display the GIPIO state and a switch form for it

  • http://server_ip/gpio?state=0

  • Will change the GPIO directly and display the above aswell

  • http://server_ip/cleareeprom

  • Will reset the WiFi setting and rest to configure mode as AP

server_ip is the IP address of the ESP8266 module, will be printed to Serial when the module is connected.

Usage

Your WiFi switch should be connected like this

Schematic

For default usage you can use the pre build firmware.

After fresh flash please restart the module manualy (power Off & On) otherwise software restart will not work and sometimes WiFi connect does not work.

Open the modules page after entering config mode (Press button >20secs if you want to enter again) via http://server_ip there you can setup to be MQTT controled or Web controled.

Credits

For several snippets used the credit goes to:

About

License:GNU General Public License v3.0

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