I`d like to create a tool to update the Arduino via a windows based tool to roll out updates to users which do not have any experience using the Arduino or VisualMicro platform.

I got it so far, that I only need to do the update out of my tool and that is the problem now.

I don`t know which parameters I need to define to use the avrdude to update the arduino mega 2560. Here is which command I try to use;

tools\\avr\\avrdude.exe -c avrdude.conf -p atmega2560p -c stk500v1 -P " + avrport + " -b 57600 -D -U flash:w:avr/AVRImage.hex:i

But it diesn`t work. Anyone with experience out here who could help out? I am sure it cannot be too complicated but I am looking at it for hours and do not find the solution.

Best
j_witt