Saturday, August 22, 2015
Sparkfun ITG-3200 Gyro
Now with a helicopter, you have the main rotor up top spinning clockwise providing you with lift. However, this causes a problem, as the torque generated by the motor will cause the body of the helicopter to spin anti-clockwise. That's the reason why most helicopters have a smaller rotor at the end - to counteract this spin.
R/c helicopters use a gyro to maintain the orientation of this tail, with the aptly named "Heading Hold" gyro. Being stupid inquisitive, I started reading up on the possibilities of creating a DIY "Heading Hold" gyro.
I was very curious, and a quick google indicated the gyro used on my mCPX BL is the Inversense ITG-3205 (nigh impossible to see in the photo below). The 3200 is a similar part, and as it was at RP Electronics, I was like... if it was used on the mcpx bl, it means it's good enough for experimenting with!