LynxMotion Crazy2Fly Calibration Issues

Hi,

I’m working with a few friends to try and get a Lynxmotion Crazy2Fly off the ground, and we’ve run into some problems.
We’ve been following this PDF to calibrate the drone: lynxmotion.com/images/document/PDF/LynxmotionUAV-QuadrinoNano-UserGuideV1.1.pdf, and have followed every instruction to the letter, (using another PDF linked to in that first PDF to configure the Quadrino, lynxmotion.com/images/document/PDF/LynxmotionUAV-QuadrinoFCTUserGuideV1.0.pdf).

We can arm the drone successfully, but upon takeoff (just applying a little thrust, not touching bank/yaw/pitch) all of the rotors will spin up evenly, and then one rotor will suddenly juice up to full power, flipping the drone upside down and sending it skipping across the ground and breaking off half the propellers.
Which is not really the behavior we were looking for.

So far, the only instruction we’ve had trouble with is setting the endpoints on the receiver interface (Step 2 on page 11 of that first PDF). From what we can tell, there’s simply no way to set the endpoints in WinGui 2.4. Looking online, we could find some tutorials for setting endpoints in WinGui 2.3, but all of the buttons/toggles/interfaces they use simply don’t exist in 2.4.
However, that doesn’t really seem like it should be producing the behavior we’re seeing right now. It would make sense for that to be interfering with the sensitivity of the drone’s responses to our remote control, but that doesn’t seem like something that should be making a few rotors randomly spin out. We know that the Quadrino is reading our RC controller correctly, because we have the remote controller calibration graph in WinGui is responding correctly. The sensitivity’s a little off, but if we push up throttle, it doesn’t affect any of the other channels, same for yaw/roll/pitch, each control is affecting the channel it’s supposed to by the right relative amount.

Has anyone else had a similar problem with the Crazy2Fly? Anything that you know of to fix it or any insight on what might be going wrong?

Hi AlexSpivey,

If the Drone does “Arm” it mean you probably did the “End Point” calibration in your RC transmitter correctly as well as Accelerometer calibration.
The “End Point” calibration is done in your Transmitter, not in the GUI. It change the signal sent to the Quadrino Nano by the transmitter.
Having the Drone to flip when applying throttle usually can mean two things

]Connection to the Motor / ESC are wrong. You need to have all the motors connected to the right pins based on their location./:m]
]Motor rotation and/or Propeller type are wrong. Make sure the right type of propeller is on the motor and spinning the right direction (CW / CCW)/:m]
Most people will use the QuadX configuration so use the following (also in the manual) drawing to connect the ESC’s to the Quadrino Nano and verify the propeller / motor rotation.

:slight_smile: