Build with ESP8266 ESP-01 Arduino IDE (https://github.com/esp8266/Arduino)

turn off relay

curl -X PUT http://eclipse.mqttbridge.com/murilo/esp/rele/off

turn on relay

curl -X PUT http://eclipse.mqttbridge.com/murilo/esp/rele/on

control relay from Android

https://play.google.com/store/apps/details?id=at.tripwire.mqtt.client&hl=en

publish murilo/esp/rele/on   - turn on relay

publish murilo/esp/rele/off  - turn off relay


See source code…