19 NodeMCU v2 - Lua based ESP8266 development kit
2 ESP8266 Serial Wireless WIFI Module
2 LM1117T-3.3 spanningsregelaar(3.3v)
https://www.antratek.nl/nodemcu-v2-lua-based-esp8266-development-kit
http://www.vanallesenmeer.nl/ESP8266-Serial-Wireless-WIFI-Module
http://www.vanallesenmeer.nl/LM1117T-3.3-Spanningsregelaar%283.3v%29