As usual I’ll be using a NodeMCU board (I really did order a lot of them) which uses an ESP8266, but there’s no reason this would be difficult to achieve on an Arduino-based device.

ESP8266 development boards like the Wemos D1 Mini and NodeMCU are an excellent way to ... connects the chip to the computer so you can program it. We’d like to see a back panel that encloses ...