Julian Straub

creations and thoughts

Setup and Programming the new ATtiny Microcontrollers

Posted at — Jan 6, 2021

The new ATtiny-0 and ATtiny-1 microcontrollers have really nice peripherals and are promising replacements for the old ATtiny85. While others do seem to miss the ISP interface, I think the new UPDI interface is actually really neat since it allows for way smaller programming connector of only three pins instead of the six pins used for ISP.

Others have written at length about how to build a UPDI programmer and get started with Arduino on the new microcontrollers. To test it out I got a ATtiny412 breakout board from Spence Konde. Here are the steps I needed to go through to program it:

UPDI programmer setup