Nodemcu Esp8266 Schematic - Nodemcu Lua Wifi Board Based On Esp8266 Cp2102 Module Nodemcu Lua Cp2102 Us 6 20 Haoyu Electronics Make Engineers Job Easier / The esp8266 nodemcu has total 17 gpio pins broken out to the pin headers on both sides of the development board.

The sparkfun esp8266 thing is a breakout and development board fo…