ESP8266-01 Deep Sleep
To wake up from ESP8266-01 from deep-sleep, you just have to send a low pulse on its RST pin.  GPIO16 is soldered to RST if you want to program and send a wake-up pulse using timers, which wakes up the ESP8266 periodically. 

If you want to wake it up using switch, you don't need that. You just have to setup a simple momentary switch like:







simulate this circuit &ndash; Schematic created using CircuitLab