Before I get to deeply into specific functionality and operation of our charging carts, I thought it would be good to take a detour into drivers for custom hardware. In addition I’ll cover mocking hardware devices to allow testing of your drivers and operating your system in a simulation with no hardware present. This allows you to flush out your hardware design with software before fabricating PCBs. (A PCB takes a long time to “compile”.
Over the last 5 years, I’ve been working on a very small team as the sole Engineer designing a ruggedized Android tablet. The only product option that met our needs would cost 10 times what we could afford. These are to be produced and distributed free of charge in developing nations as a missionary tool. Due to the cost and effort involved in getting them in country, our goal was a tablet with a 10 year service life.