A new member joined to the team.

For the new project I hired a highly skilled technician. Although with little experience in the subject, already demonstrates a great enthusiasm and confidence in the new quadcopter. In the figure the new member of the team is doing a technical analysis of the central box of the new quadcopter (take a look in the critical eye), which was followed by a crash test to check the strength of the material.

I2C communication problem between the engine controller "BL-Ctrl" and the Arduino Board.

I did a very little test program to try to use the engine controller "BL-Ctrl" from the Arduino board via the I2C protocol (http://www.arduino.cc/en/Reference/Wire). I made a small program to test the controller with the address 2 (rear engine) of the quadcopter and upload it to the Arduino board. The result is that the engine work for a few seconds and then stop. To go back to work I have to make a reset of the Arduino board. I do not know if the addresses of the controllers (0x29, 0x2A, 0x2B, 0x2C) are correct and I do not know if the code that implements the I2C communication is correct. The information that a I have got was from the file "twimaster.c" from the code of "FlightCtrl", but it is very difficult to find a way to implement the same code on the Arduino platform.

To see if someone could help me find more information about the I2C communication between the "BL-Ctrl" controllers and other devices like Arduino I put this problem in the MikroKopter forum.