proMini UPDI
We
wanted to build a board around ATmega 32U4 and breadboard
friendly. Fortunately and
unfortunately there are a lot of them out there. So
differentiate this one from all the rest, we added remaining
not routed pins out and as extra we added 2x6 and 1x3
connectors so that the board can be turned into UPDI
programmer with help of MCUdude UPDI firmware.
Versions of this board is available on our
Tindie store
Features
Build around ATmega32U4
All pins routed to the outer connectors
High voltage RAW input 7-12V regulated to first 5V 1A regulator
500mA 3.3v secondary regulator
CPU voltage core selectable between 3.3 and 5.0 volts need to have 8MHz crystal for 3.3v version
Can run from USB power source
2x3 connector for UPDI and
serial2 to act as programmer or external peripheral
1x3 connector to act as UPDI
UPDI through D6
target voltage selector 3.3 or 5.0
Credits
SparkFum Electronics
Documents
Schematic
proMini
Gerber Files
PCB
layout files