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Electronics process

I designed the board at Kicad and then millie it on a copper laminated board with the Rolland SRM-20. I followed the processes on Elctronics deisgn and Electronics production weeks.

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In this case I had to create 3 different files to be able to do the holes before milling the interior.

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For the board I use an Attiny3216, and add different pin-headers according to how you were going to assemble the components later. The OLED screen is detachable and is first placed in the housing secured by screws.

Until now I had not used 0 ohm resistors, which made my life easier when designing the circuit.

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I decided to use a button type switch on / off since for the moment I wanted to avoid programming it and my only objective was to be able to turn off the device.

I made an approximate calculation of how much the whole circuit was going to use and decided to use a 3.7V 300 amp battery.

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Find the final files here:


Last update: July 4, 2021