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I-like-BWRs

@I-like-BWRs

Joined June 3rd, 2026

  • 16Devlogs
  • 5Projects
  • 1Ships
  • 9Votes
Im a guy that likes microcontrollers, coding (meh.) and hardware (yee). I like to make stuff better. ( I also like Boiling Water Reactors if you hadn't noticed :3 ) Currently I'm working on $NasExplore and $MicroDev128.
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5h 3m 2s logged

Cleaning Up the PCB and getting it ready for production

Woooooo!!!!!!!!!!!!!!!!!!
Its done :3-blahaj-spinning:

Check the other MicroDev128-32P devlogs for more info.

I changed the short circuit/reverse polarity protection to using a TVS and fuse. I fixed some errors, worked on docs, and finished doing the silkscreen labels. Now I have to request funding and test (aka abuse it until it blows up >:] )
Sorry for gaps in the time-lapse, I got distracted reading my voltage regulator datasheet and forgot to pause the recording. Maaa Bad.

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2h 14m 2s logged

PCB Routing Pt3

Finally Finished Routing the project!!!!!!

Took a while but I ended up using layer 3 as a mixed power and signal plane insteed of a solid power plane. I am happy with how it turned out. I still might add TX and RX lines to the UPDI header, so you can do serial print.
Overall very happy. Now I have to finish the silkscreen labels, do the documentation :/ , and test it (yay).

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49m logged

PCB Routing
MicroDev128-32

Started routing everything for the whole board. I am sick of routing a good seeming line and then ripping it up 20 times.

  • Started on the power lines
  • Made planes for the GND and 5v lines
  • Learnt that I really suck at PCB design in general

________________________________________________________________Project Overview

Based on the AVR128DB32, with the LT8653S switching power regulator. It has:

  • Up to 2 amps on both the 3.3v and 5v lines.
  • 128kB Flash and 16kB SRAM
  • MVIO on 4-pins with 3.3v, 5v and EXTERNAL source presets
  • UPDI Programing
  • Arduino Nano sized footprint
  • Aims to have a better price to performance ratio than
    Arduino (not hard considering a Genuine Uno is $40 NZD (About 20 USD)

More to come as I hopfully soon finish this project!

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1h 47m 11s logged

PCB PT2

This time:
I have changed the voltage regulator to be the LT8653S (smaller footprint)
I have relaid the board (again)
I have started routing some basic data lines and the crystal.
I have updated all footprints

More to go!
Getting there

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