Hello all,
I've assembled a quadcopter using Arduino Uno R3 , Gy-521 with Multiwii. I've used this schematic
Everything worked great with the solderless cables from Arduino, so I started soldering.
Everything soldered and the Gy-521 doesn't seem to work properly when I use the MultiwiiConf GUI. It doesn't move or anything. It goes crazy whenever I remove the VCC or SCL and then stops, which means it is not dead. The LED flashes brightly and it's connected to the Ground and 3.3v in the board.
- I've bought 3 new ones, same result with all of them, its not the MPU board.
- Switched cables
- Switched between A4 and A5 and SCL and SDA on the Arduino
- Removed everything else and tested only with the Accel on
- The battery on / only USB
- 3.3v Pin and 5v Pin
- Changed between Gy-521 and NanoWii sensor
- I2C speed 10000 / 40000
- define internal I2c
- Calibrated Accel in the GUI
- Everything I can think of at this point really...
- Everything was working well, I even used the same code after the solder at first, even disconnected everything and testing only with the sensor didn't have any changes.
Any other idea?
I could've simply used a FC, but I really wanted to complete this project with the Arduino UNO.