Challenger+ T3217 Packages 8-bit ATtiny3217 in a Compact, Battery-Ready Board
https://fed.brid.gy/r/https://linuxgizmos.com/challenger-t3217-packages-8-bit-attiny3217-in-a-compact-battery-ready-board/
Nobody doubts the utility of the Arduino Nano and its many clones, and chances are good you’ve got at least one or two of the tiny dev boards within arm’s reach right now. But as small …