The ESP8266 downloads the OTA for the Arduino Pro Mini from a URL on an http server, then powercycles the Pro Mini pulsing PC6/RESET, during which it also drives the Mini's DTR low. After RESET goes ...

The pro mini did not come with the pins attached, I had to solder them as shown in the images below. This module covers the basics of interfacing with the mini. This serves as an usage guide for the ...

The Arduino UNO Mini has basically all the same features as the original Arduino UNO but uses a quarter of the area, and features a USB Type-C port for programming the board with the Arduino IDE.

is noticeably bigger than the Arduino Pro Mini. Next, I look at the schematic provided by SparkFun. The reason I did that is because I know for a fact that if you are trying to program this board with ...

It just runs your program, what the Arduino folks call a sketch (and the rest of us would call a script). You can pick up an Arduino Uno for as little as 25 bucks, but I'm going to recommend you ...

Everything is driven by an Arduino Pro Mini. The lights are APA106 LEDs; a 4-pin through-hole package version of the WS2812 pixels. You could easily substitute these for the surface mount ...