Different ways to drive multiple IO lines

A first project for the MaxiMite 2

I have been working on a new project idea. A device that could check the continuity and connections of a series of cables – namely the coaxial cables connecting LNBs on a satellite dish to the multi-switch. For this I need to drive several channels. In working through the design I wanted to explore two approaches. One approach uses encoders/decoders. The other approach uses shift registers. This gave me the opportunity to take advantage of a new addition to my bench – a MaxiMite 2 compact computer. In this post I will describe the two approaches and my first impressions of the MaxiMite 2 for the purpose of prototyping.

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