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Category Archives: Hardware
Simple font data for LED matrix displays
My next mouse will have to have one of those small LED matrix displays. Not only is it actually useful to have a way of getting some feedback from the mouse, but these days, you feel a bit left out … Continue reading
Using a skillet for soldering?
Experimenting with other ways to solder parts.
Posted in Hardware
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ZVI Soldering parts
After soldering the CPU, I found it didn’t work…
ZVI making a bracket video
Video of making a bracket for Zeetah VI by Pierre.
ZVI Brackets
Pierre was debating whether to make the brackets and separate axles or make them out of one block.
Zeetah VI PCB assembly
After the PCB order had been submitted I created the BOM and ordered the parts from Mouser for delivery a couple of days before the PCB. I tried hard to reduce the number of different parts. One big change from … Continue reading
Working on Zeetah V again
After a break of a month, we’ve started working on Zeetah V again.
Tools – logic and protocol analyzers
Invariably during development you need to look at a small number of signals because the circuit isn’t working correctly. What do you do?
Bi level stepper driver
At the 2007 Minos micromouse conference, Martin Barratt gave a talk about his stepper motor driving scheme. For best performance, steppers really need to be driven by a high voltage. However, the current will need to be limited to prevent … Continue reading
Buffered H-Bridge from Vishay
Having half a mind on the challenge of half-size micromouse, I was looking at some information on the megabitty controller. As supplied, it may well have enough features to make a micromouse controller but that wasn’t what caught my eye. … Continue reading