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.
In this case I had to create 3 different files to be able to do the holes before milling the interior.
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.
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.
Find the final files here:¶
- Final board svg
- Final board holes png
- Final board holes rml
- Final board interior png
- Final board interior rml
- Final board traces png
- Final board traces rml
- Kicad_Schematic_final_board
- Kicad_pcb_final_board