feganmeister
United Kingdom
Asked
— Edited
Resolved by thetechguru!
Hello!
So I've been battling with maths recently and trying to figure out the torque required to shift my robot. I've got some on order but they'll be a month or two before they arrive. In the meantime, I'm thinking about using a pair of modified servos. However, I'm conscious of the power draw and figured with me already having a working set of H-Bridges on the chassis, I wondered if anyone has ever dabbled with powering (or even controlling) modified servos externally from the EZB? Am I bonkers to think that if PWM wire from the servo goes to the EZB as normal, and the ground is common, it will work? *confused*
Alan
However, there is absolutely no need to do this as the ezb can easily power modified servos and everything else through the red power pin (on the ezb)... Also servos have a built in H-bridge so you won't need an h-bridge to control them....
I am not sure of what you are powering with H-bridge already on your chassis.
I would simply add continuous servo movement panel, and try it.
Unless you are overloading, it should work.
If you power servos from battery, use white signal wire.
If you are still using your EZB3, I have used 8 to 10 standard (kit) servos plus serial communication at the same time with no issues.
Steve S
Sorry @Steve-S I wasn't too clear; the existing H-Bridges are simply in place ready for the new motors, when they arrive. The modified servos are a temporary solution to give mobility. I'm not convinced the draw of the modified servos won't brownout the EZB - I'll go for external power just in case
Am I wrong?
Hang on, I will take a picture.
Thank You,
Steve S
Black is ground
Red is +5
white is signal
you got it right
I did not think I had too many?
Steve S
@Richard, did happy hour start early, lol?
This is what Steve said....
It looks like he was telling the op to connect the signal wire of the servo to an external battery, no?
In all fairness to Richard R, maybe I could have explained it more.
Thank you,
Steve S