It is Microchip/Atmel Xplained mini/nano mEDBG debugger with some additional features:
- level translation,
- USB 5V VBUS Schottky diode protection,
- build in 3.3V LDO,
- target voltage jumper selector: 5V (4.7V actually), 3.3V, external/other,
- power, programming and target power sensing LEDs,
- hacked code responsible for MCU selection: it is possible to program and debug all MCUs with compatible interface : ISP/dWire (most megaAVR and tinyAVR), SWD (all Atmel's ARMs), UPDI (new megaAVR and tinyAVR: called "0" and "1" series), TPI (some small tinyAVR)
(a little bit outdated) table showing interfaces in AVR / SAM families:
Hi, I reproduce this project, but it does not work (ISP/debugWire). In the instructions above, I can't find fuse settings. Does it need to use stk500 or something else to set the fuse of atmega32u4 before the first step "1a" ? Most arduino uno users are not avr expert, can you give the people a more detailed instructions as an example? Best regards.