As you might have observed, even the wondrous Digispark development board uses the ATtiny85 as its brain! Literally, ATtiny85 is a scaled-down version of the Atmega microcontroller on Arduino boards .

Planning another Arduino build? If you’re just doing something simple like switching a relay or powering a LED, you might want to think about the Digispark. It’s a very small ATtiny-based ...