I want to use the Throttle as a controller and move it, but it doesn’t work well, it has an S3 brand digital servo motor, but it works properly. However, the ESC has S1 and the setting does not work even if you do it with a full power meter.
Hi @sirasasudon,
I think there are some translation issues in your question so it is difficult to understand the issue.
I think the problem is that you’ve got a boat and you want the autopilot to be able to control the boat’s steering and throttle. It seems like you have a digital servo that works when connected to the autopilot’s “S3” output but if you attach an ESC (perhaps to “S1”?) it doesn’t work.
The most likely issue is that the ESC can only spin the motor in one direction and will only accept “PWM” input between 1000 and 2000 where 1000 is stopped and 2000 is full power. Most multicopter ESCs are like this.
Ideally you probably want the boat to be able to move forward or backwards so you need an ESC that can spin in both directions. For these types of ESCs 1000 is full reverse, 1500 is stopped, 2000 if full power forward.
If you’re happy for the boat to be unable to reverse, I think you could get the ESC working by connecting it to the autopilot’s S3 output and then set SERVO3_TRIM = 1000 (the same value as SERVO3_MIN)