This project is designed for a small boat for three people with a 4hp yamaha 4 stoke engine as such has no remote command I created this device.
The engine has a security system for people falling into the water and also the project foresees the panic button to stop the engine, the throttle servo does not prevent hand from the wheel speed up the engine, steering servo is attached, by the moment with a stainless steel rod, and is expected to have quick release system for driving manual.
The system is working correctly, both the servos and motor stop and temperature control, only I change the servo direction for a titanium with 38 Kg / cm operating at 12V battery directly connected to the boat, as does not have enough force to turn the engine at high motion.
One way to make sure it works is simple, to accelerate the engine reacts and turns if you do.
It is a system for an unmanned fishing boat from a central console, can also be connected to a radio remote control as the small planes and have fun for a while.
/me