wes3066
USA
Asked
— Edited
Well really I want to ask three questions here;
1. using the 2.5amp dual motor controllers, could I not wire the front and rear of the left and right side of the motors together on the 4wd wild thumper chassis and only use one motor controller?
2. how would I control the second motor controller, or would I just jump the same control wires from the first one to the second?
3.if I use a 12v rechargeable battery can I directly connect it to the ezb or will it blow? Currently I am using a 7.2 volt RC battery which seems to work fine.
thanks in advance for the help!
I used one Hbridge. It works but turns only when on floor.. not on rug.
I add extra battery packs becaue the pack that come with EZ is not powerful to do much.
I used 2 - 7.2 V 1600 ma in series and it performs great. But still will not turn on rug well.
If used for long time, especiallyturning Hbridge gets warm.
I am thinking of addding another Hbridge if I continue with this design.
Now just testing and learning.
To run the second motor controller you need to write an EZ Script. Search the forum. There should be something someone already wrote that can help you. I'm running 3 H bridges in my robot but all are controlled by scripts with poison feedback from pots. My DC motors will not travel more then 360 Degrees.
I have 3 EZ-B's in my robot and all are supplied by 12vdc. Works great but the regulators get warm. A 5v fan powered by the EZ-B it's self solves that. I think the EZ-B will take up to 17 vdc.
I probably need to increase the power up later to at least 12 volts to get more speed, but it is pretty quick already.
Turning on the Thumper is very difficult for precise handling.
I am trying to come up with docking routines but maneuvering is jumpy.
Also using the PWM is useless unless set 100%.
That is probably why I need more power.
Also Thumper I think is not the greatest platform for precise work I need.
Every video I see on Thumper the users go wild with it ... not the reason I bought it.
I need a stable platform that can carry some weight.
But it was a good learning tool to start working with.
I wonder if I really should have had wired for with the PWM or just went to full power with controlling speed?
Anyone out there play with Thumper a lot?
Once you do your internet research I say give it a try. No guts, no glory I always say. (What's the worse that can happen? Release the magic smoke and buy another H-bridge.)
*eek*
cr4.globalspec.com/thread/3596/Can-I-Use-an-H-Bridge-For-Two-Motors
Sounds that one motor may lag behind the other one though. don't know if this will be a problem for you. If your using them on treads or wheels your robot may go in circles.
ok here is what I did I connected the control lines coming from D15-D18 ezb board together along with the enable line on D19. One h-bridge controller for all 4 motors, no lag and on smoke! So this will free up additional control lines for additional items later. Thanks for all the help in pointing me in the right direction, I was going to do this anyway but wanted input on it. Best of all no script was needed.
I have a simple 4wd chasis from sainsmart, using EZB and 2.5 amp Hbrige. I cannot make it to turn (wood floor). The only way I got the platform to run is by stripping out the rubbers on rear wheels so there's less friction and it can turn. It seems that while given the order to turn the Hbridge runs the wheels on both sides at the same speed while the wheels on the inner side should run much slower than the wheels on the outer side, is that correct ? If so, do you know what could possibly allow me to have the wheels to turn slower on one side beside using PWN each time I want to turn ?
Thanks,
Elfege