Hello:
I’m trying to breath some life into a front tilt motor VTBIRD that’s been sitting on the shelf for 3 years.
MP version is: 1.3.82 Build 1.3.9228.10685
AP version: 4.5.7
FC is a Holybro Durandal
I’ve stepped through all the basic setup and due to the size of the frame, only used the large frame compass calibration.
Have gotten the configuration to the ARM point and when I arm, using the sticks method, in QSTABILIZE, the motors turn after 2 seconds and at the same time, I hear the armed tone. I’m more used to the Copter sequence of sticks, tone, then add THR and the motors turn. Is this normal for the motors to turn in this sequence?
The frame happily sits there at THR full down and motors at idle in QSTABILIZE - the FC LED is giving me a solid green.
Then when I raise the THR, three things happen: the motor’s RPM increases, the LED starts flashing RED/BLUE and the beeper starts a 1 second beep like the FC is in compass calibration mode.
Looking at my radio channel outputs, full down THR shows 988us. When I hit 1050us-ish with THR, the RED/BLUE LED starts flashing and I get the 1sec beep.
The WiKi tells me RED/BLUE LED means gyro calibration. The frame is sitting on solid level ground, which should allow the gyros to calibrate, correct? I also see a quick RED/BLUE on initial boot, but only for a second at most.
I’m now under the impression the RED/BLUE LED also indicates compass calibration and my issue is determining why the FC puts itself into calibration once armed and the motors turning.
I have also tried assigning RC12_Option as compass calibration and put it on a radio switch. That function doesn’t work for me nor does full THR, right RUD.
VTBIRD-params.param (25.1 KB)