Although it’s very rare, for example, after powering the device on 50 times, on the 51st time the SBUS signal fluctuates severely. I’m using an H16 transmitter, MATEK H743 Slim, and ArduCopter 4.5.7. The fluctuations are so intense that the system armed itself while on the ground, and I couldn’t do anything to stop it. I’ve used different configurations before, but this is the first time I’m encountering such an issue. Since the problem doesn’t happen consistently, I can’t pinpoint the cause. I’ve replaced all the hardware except the wiring. In your opinion, what could be the cause of this issue? Thank you in advance.
If the RC receiver SBUS out fluctates, the receiver is not able to decode the transmitter signal correct.
Which HW you replaced?
How is the receiver antenna placed to other high current wires?
The reason could be
- bad receiver
- bad transmitter
- high EMi noise or interference