Wifi Esp8266 Smart Switch with Single Relay Board
Nodemcu header single relay board
https://www.tindie.com/products/Armtronix/wifi-esp8266-smart-switch-with-single-relay-board/?pt=ac_prod_search
![](https://sp-ao.shortpixel.ai/client/to_webp,q_lossless,ret_img,w_530,h_353/https://everythingesp.com/wp-content/uploads/2019/03/kEXd3_XPG3WW-0LKE465_TmWOXHSX1AnQauuekQCSP6Yfv782a.jpg)
Wifi Esp8266 Smart Switch with Single Relay Board
Nodemcu header single relay board
https://www.tindie.com/products/Armtronix/wifi-esp8266-smart-switch-with-single-relay-board/?pt=ac_prod_search