Image: reddit.com · I Made the Tiniest Arduino-Compatible Board
Pinch: a tiny SAMD11 Arduino-compatible board
A 10.5 x 10.9 mm SAMD11 Arduino-compatible board whose custom bootloader trick for saving flash was found after back and forth with Claude.
Credits
Earliest dated source:
The full story
Pinch is a tiny Arduino-compatible board based on the SAMD11, measuring 10.5 x 10.9 mm, with USB-C, an RGB LED, a reset button and 12 GPIOs on the header.
The biggest effort was the custom Arduino board package and a 4 KB bootloader. After a lot of back and forth with Claude, the maker found a way for user sketches to reuse the bootloader's USB serial code instead of including their own, saving a lot of the chip's 16 KB of flash.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: I Made the Tiniest Arduino-Compatible BoardReddit poster: jus-kimPosted
The maker's post on r/arduino.
If it disappears: archived copy of Reddit: I Made the Tiniest Arduino-Compatible Board (opens in a new tab)
- The code: github.comRepository account: moddoio
The board's repository.