An adapted version of a brilliant smart button enginered by Noel Portugal. It uses an esp8266-01 Espressif wi-fi module and lua programming language to turn on, publish an mqtt message and shutdown to prevent battery drain. It supports OTA wi-fi configuration.
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Flash nodemcu firmware
add
end user setupandMQTTto the basic preselected modules. Download and flash using esptool -
Fork this project
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Upload files
Note There are many
uploadersout there, I use nodemcu-uploaderMake changes to
init.luato set your mqtt provider configuration and uploadinit.lua,wifisetup.luaandmqttpub.luato the esp-01 moduleA
iftttrequest.luahas been added to test IFTTT (not required)