http://wiki.ardumower.de/index.php?title=Ardumower_PCB
There is a link for the software in the wiki page.
When you have downloaded it, search for: /pcb/megashield_svn_1.2_geschlossen/ardumower mega shield svn.pdf
This is the schematic, how you should have built your mower.
In /ardumower is the ino file for the mega.
In /Sender is the ino file for the perimeter Sender.
If you built your mower after an older schematic, you can always try.
Compare the pinouts and change them in mower.cpp
....
if you have L298n motordriver
in mower.cpp
search for setMC33926 and change it to setl298N for left and right.
add this line for every
motor, or youll get
motor faults:
pinMode(pinMotorRightFault, INPUT_PULLUP);
....
If you dont have RTC module: get one, its required (something about pullup-resistors on i2c bus)