Servo Controlled LED Head Scratcher

Discussion in 'The Projects Forum' started by Longhair, Dec 5, 2010.

  1. Longhair

    Thread Starter New Member

    Dec 5, 2010
    My knowledge in electronics is very basic right now because I have just started to take an interest in it so I can learn how things like RC vehicles work better.

    I found a tutorial of making a servo controlled LED on/off switch online from and have used that as my starting point.

    What I want to be able to do is use a 3-way switch on the radio for off / low / high (0v / 2v / 3.3v white LEDs being used) and this is where it goes beyond my knowledge.

    I am using a Futaba S3004 servo and have found the following websites containing information about the servo: S148 Servo mod for PWM.htm

    Before I cut off the potentiometer, I measured the DC output at -4.5v, 0, 4.5v depending on the position of the switch. I then cut off the potentiometer, used jumper wires from the 3 posts to a breadboard so I could experiment with different resistor values to accomplish my goal.

    The closest I reached with the limited number of resistors I have on hand was -1v / 4.8v / 4.5v.

    Any help would be greatly appreciated :)