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I have talked about the Fuel load Indicator twice before, first here and then here. So here is the hardware design and its analysis. Analysis:  In my last blog I noted that between the display and the switches I am using about 25 pins + ground and power. So to recap here are the pins: I have added a second table which shows the I/O connections. The reason that I chose the STM32 was for its size. It can easily fit inside the enclosure (approximately 7cm square). The Plan: The Hardware: Si ...
Dang. I can find my go to WireWrap gun, a Gardner Denver 27100AB2.  So I know somewhere I had a few laying around (things you NEVER get rid of!). So after digging in my warehouse for a while I found three semi-dead guns and one with a bit and sleeve. I did not like the cable as it was badly frayed and the index was not working. So here what to do ( See the pretty pictures below; as I know you all like them ): Find and remove 6 Allen cap screws. Remove upper case and look around An aha m ...