My name is Lodi, 20 year old and an Automotive student. I am currently working on making the throttle control on our engine dyno electrically controlled.
I am using the Invenscience i00800 with the jrk 21v3 controller, and the Arduino Uno SMD. The input signal to the Arduino is 0-5VDC, and the board converts this to a PWM signal. This PWM signal goes to the jrk and controls the servo.
This setup is working like it should, right now. To control the throttle I only need a very limited motion of around 30 degrees (or even less), and this is where I am stuck. I would like to control the servo in this limited distance with the full 0-5V signal. So that I can precisely set the position. When I try to set a scale limit (inside the Pololu environment) the servo will only travel the degrees that I want it too, but it reacts the same to the input signal as before and this results in a huge dead zone, using only a small portion of the potentiometer.
As I said, I would like to use the entire range of the potentiometer to control my desired degrees of rotation (<30 degrees).
I hope you guys can help me !