Basically there is a power and ground, a clock signal, two signals for data, and most importantly a reset pin. I spent some time going down into the core of how everything is connected from an Arduino ...

This Arduino ICSP programmer has been made from Alumide, a strong plastic with aluminum fibers. The cover is made from translucent POM, illuminated by three rings of in total 27 LEDs.

Once more dreaming of making things, I started to puzzle over finding small connectors to allow in-circuit programming (ICSP S=serial) of a PIC as well as to allow a couple of push-buttons to be ...