Have you ever wondered how to turn on ESP8266 using external interrupt? Build a battery powered amazon dash button or a lipo powered door bell using ESP8266 without putting the device in deep sleep? Here is your answer.
This project is built using ideas at http://www.esp8266.com/viewtopic.php?f=11&t=4458
Arduino Code: https://github.com/debsahu/ESP_External_Interrupt
