Little Arduino Shield Spacers

The normal recommended spacer for Arduino shields is to use an extra set of extension headers. This is overkill if all you need is a little extra height. In my case my Sparkfun proto shield was not sitting level on the Arduino Duo R3 – the board was hitting the USB port, and ended up […]

Absolute 128 Position Encoder for Arduino

I’ve started work on motorizing the Dalek dome and came across this nifty rotary encoder. Most rotary encoders are of the incremental type. They give you direction and revolution counts, and may have resolution of only a quarter turn. This one is an absolute position encoder, giving 128 unique binary values on its 8 pins. […]