This is an enclosure set for the NodeMCU V2 (ESP8266). The heart is an additional pcb with integrated voltage regulator and breadboard. It fits together with the NodeMCU in a 3 module DIN rail enclosure. You can mount your ESP8266 project in a cabinet. Overview:- milled 3 module DIN rail enclosure- transparent lid in the top for displays, leds ....- pcb with socket to plug a NodeMCU V2 (Amica)- optional integrated voltage regulator (input voltage 9..35V via 2 way terminal block)- breadboard / proto board for own circuits- 2x 15 pole female pin header- all GPIO pins are marked and placed beside the breadboard area- 2x 3 way terminal blocks to connect external components to the breadboardmore info: https://www.hwhardsoft.de/english/projects/arduibox-nodemcu/