Asked
— Edited
Resolved by Steve G!
Hello,
PLEASE describe to me exactly how to control an AR-1202MG servo using an EZ-B v4 wifi controller.
AS of now, when I plug in the servo to D0 and use the vertical servo control, the servo does not move and an LED quickly blinks. I can feel the servo and I know it is receiving power. Sometimes the EZ-B resets itself and I have to reconnect.
https://www.bananarobotics.com/shop/PowerHD-AR-1202MG-Standard-Analog-High-Torque-Robot-Servo-60g
Please advise on what to do.
Sincerely,
Dave Lawrence [email protected]
I agree with Steve, try an initialization script, but there is nothing intrinsically wrong with the project (I was hoping for a simple mistake like incorrectly set min and max position settings). It works fine with my servos.
Only other thought would be to see if you could send one of your servos to @Jeremie for testing. He might be able to tell why it is not responding to the EZ-B.
Alan
I am tempted to buy one off of eBay... because this puzzle is really bugging me.... The servos should work....
I am wondering if maybe it is a bad EZ-B and not a servo problem at all.
I think we asked, but have you tried other ports on the EZ-B? One of my EZ-B's has a bad port.
Have you tried other devices on the EZ-B and do they work?
Alan
@Alan.
Yes David did mention that he has used different ports, but to no avail.
I must admit this one is bugging me too (although probably not as much as its bugging David I'm sure). confused
@Alan... that could be... I have an ezb4 that I dropped a screw driver on and now 3 ports will not drive servos, but they will drive an led.... I wonder if David can get a hold of another brand of servo to test on his ezb?
Like @RR I am very curious about the voltage divider David mentioned he had. If it's resistor based it could be severely limiting the current being applied to the servo.
@Jeremie.
That's what I was wondering myself when I mentioned it in post #32, and suggested to connect the servo directly to the EZ-B. I'm not familiar with voltage deviders myself, but it sounds like something similar to a regulator, and I know there can be regulator issues if using the wrong amp output with a servo (I.e, not enough power feeding the servo).
@Steve... I agree, scrap the divider plug the servos directly into the ezb... They should be able to handle the lipos 7.4v no problem....