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Table of Contents
Paper-AVRISP mkII
Am AVRISP mkII clone made with Paper-PCBs. The controller is the ProMicro with the Atmel32U4 chip. The design is based on the
Kosakalab - Make the AVRISP mkII Clone from Arduino Leonardo / Micro.
Paper-PCB
Pro Micro Modification
TX Line Connection:
Solder a wire between the resistor of the TX LED and A0.
Close the Jumper:
The Chinese Pro Micro clones have a 5V converter on board. That means when powered over USB the Pro Micro runs on 4.7V. To close the jumper will avoid that (it´s next to the USB socket). But never power the Pro Micro over the RAW input again! Check the
original sparkfun schematic for details.
In putting a little bit of solder on J1 of the Pro Micro Clone you close the jumper and bypass the voltage converter of the board.
Knowledge
The Arduino Pro Micro
Connector
Atmel TPI Interfaces
Atmel SPI Interface
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