Sooooooooooooo. Rev 2 had so much promise, but after getting it working I quickly discovered it had some serious issues with power distribution.
So I had to redesign the board and give more thought to the power lanes.
I now have 5v regs dedicated for each of the led arrays and a third 5v reg for the rest of the project.
Because I need a stable regulated 12v to run the backlights and run the fuel sender probe, a friend recommended that i remove the 12v regulator I had because it would be better to use a boost converter from the third 5v supply.
Its a stop gap measure that might change in a later version. But this does solve some issues with the widely ranging 12v line off the bike.
The old 12v reg I was using needed a 2volt + headroom to get a stable 12v. The other option I had was to use a low drop 12v reg. I found one, but they're expensive.
And its also possible that the bikes voltage could end up dropping bellow 12.5v... (the bikes voltage/rectifier is on the blink i think, I will fix that, but it does highlight a possible real world issue the dash has to contend with.
I would like to make this a product I can sell, so while I'm learning how to build it, its good to find these issues and work out how to fix them.
Anyway, I've etched the board and got a solder mask on both sides. I might even put on a silk :D Who knows...
Anyway tomorrow ill be reflowing the SMD bits. Ill post a pic then.
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