AngstromIO: Ultra-Compact Attiny1616 Devboard and CH32V003 Experimentation Platform
By
zachlatta
2mo ago· 8 min readenCode
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Summary
The article describes three hardware development boards created by the author: 1) AngstromIO, an extremely compact development board based on the Attiny1616 MCU that's barely longer than a USB-C connector with 2 GPIOs and I2C lines, 2) a dual CH340 programming board for UPDI programming and serial debugging, and 3) a breadboard-friendly experimentation board for the CH32V003 microcontroller featuring a 5x4 charlieplexed LED matrix. The AngstromIO is designed for space-constrained embedded projects, while the CH32 board serves as a learning platform for programming experimentation.
Key quotes
· 4 pulledAngstromIO is one of the smallest devboards out there, barely longer than a USB-C connector, based on the Attiny1616 MCU.
I made a dual CH340 programming board too, both for UPDI programming and debugging (one way Serial Communication).
I also designed a breadboard friendly, experimentation board for the CH32V003, with a 5x4 charlieplexed LED matrix.
While the AngstromIO is a tiny devboard, yet powerful, that could be embedded in any space constrained projects, the CH32 devboard is more an experimentation board, for me to learn how to program this
AngstromIO, one of the smallest devboards out there, barely longer than a USB C connector, based on the Attiny1616 MCU. And a dual CH340 board for programming and debugging, and another devboard, b...

