The cables are all very short maybe 5cm?
Sorry for the Pic, here another try:
Here the first lines of my serialport output after a fresh restart of the arduino:
i2cWcWrite failed: 2
i2cWrite failed: 2
i2cW 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cW 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWi2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
i2cWrite failed: 2
After that it just goes on with the "i2cWrite failed: 2" message. What does the 2 mean?
I talked to the guys from Sparkfun. They are suspecting that due to the impact there could be a cold joint within the board and that i could try heating the board up with hot air to get the solder flowing... But I'am not so sure if a small impact like the robot falling over could have formed such a cold joint....