To get things straight…
I fly with the same transmitter as I use for helicopters and planes (a Futaba-transmitter and receiver). With that said, the throttle-stick is not centered with a spring (like DJI-transmitters for their multicopters). When the throttle-stick is completely towards me its value is -100%, not 0.
Should I put the failsafe on the RC-receiver set to HOLD on all channels, except THROTTLE that should be set to -100%? Fully down (not away from me). If the transmitter suddenly dies by some reason, the Flightmode is still the same, the inputs for Tilt, Roll and Yaw are still the same. But… the throttle is suddenly fully down to -100%. Throttle channel is 1094 in Mission Planner. FS is set to 975 in Mission Planner as default.
“Motors will be immediately disarmed if the vehicle is landed OR in stabilize or acro mode and the pilot’s throttle is at zero”
That I do not want!
If the PPM-cable gets loose between the receiver and the Pixhawk, the pulse-signal is lost and that I can understand, the signal is lost.
How does the Pixhawk recognize when the transmitter fails if failsafe is not used on the receiver? HOLD on all channels? All channels still sends the correct signals. Failsafe on my Futaba is Failsafe or Hold. Failsafe equals a value. I cant change between “use failsafe” and “inactive”. Its Hold or Failsafe.
When reading the manual on Ardupilot:
Set the “FS Pwm” value to be:
- at least 10 PWM higher than your Channel 3’s PWM value when the throttle stick is fully down and the transmitter is off
- at least 10 lower than your channel 3’s PWM value when the throttle stick is fully down and the transmitter is on
- above 910
What?.. on that.
When my transmitter is on, the value in Mission Planner Throttle-reading is 1094.
When my transmitter is off, the value is the same because I use -100% throttle as failsafe, 1094.
What value should I set the FS Value to? It is 975 as default.
I have max-min-programmed the ESCs. And then ESC-calibration using Mission Planner.
If I test now switching of the transmitter, nothing happens. Still Stabilize, but Mission Planner says No RC-Receiver.
I do not get it. I have used failsafe on multicopters before. RC Receiver-failsafe that puts the flightmode-channel to RTL and on simple