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.

The question is what should you compare this to; is it more an ESP32 or an ESP8266? The new “C3” variant has a single 160 MHz RISC-V core that out-performs the ESP8266, and at the same time ...

That's where an ESP8266 comes in. It's basically a Wi-Fi microcontroller that you can hook up to more or less anything, and there are a few reasons why you should consider it as the centerpiece of ...