As you expect, the UNO Mini Limited Edition is a quarter of the size of the original footprint, measuring 34.2mm x 26.7mm x 8mm. It’s impossible to guess how many projects that equates to.

Arduino Mini ATtiny3217 development breakout board. 11:26 am March 30, 2020 By Julian Horsey. ... The Dily3217 is an Arduino compatible development board measuring just 30 x 10mm in size, ...

Its name is Arduino Uno Mini Limited Edition. Noticeably, looking at the photo (right) a USB-C connector has replaced the usual -B, Micro or Mini USB. The sketch processor remains the venerable 16MHz ...