For those following along at home, [WhisleyTangoHotel] provides a hand-drawn diagram to show how everything ... Feather HUZZAH is used, but any ESP8266 would work in its place.

You have an ESP8266 board like the Wemos D1 ... and maybe a pushbutton – the Fritzing diagram shows everything you’d like to know. From there, you have examples on using deep sleep, do ...