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2 H-Bridges?

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Hello all,

I am trying to connect 2 H-bridges to my EZ-B. I followed the online tutorial and successfully connected 1. However, when attempting to connect the 2nd one I ran into some trouble.

The second H-bridge would only move one servo, in the up, down, and "stop" positions ... odd. The other servo showed no movement

I want 1 bridge to control forward and backward movement, b/c these two servos will be dedicated to only F and R

The other bridge is to control left and right movement.

Please advise me,

Thank you

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Synthiam
#9  

Awesome:)

Now do the second like you did the first. And tell me what ports you connect it too.

#10  

CRich glad to see you have the first bridge running! Any pics of your build yet? I like this project you don't see that many fun balance bots. Controlling this little guy with the wii is going to be entertaining! - Josh S

#11  

Nothing pic worthy yet ... I will take a few once all "this" is done

#12  

Dj,

I'm using :

D0 D1 D2 D3

And

D9 ....will that work?

#13  

Hey DJ, have you had a chance to do that yet?

#14  

I'm interested in using 2 H bridges too.

I've got a Sabertooth as my main H-bridge, which works, but I need to be able to start / stop/ reverse another motor in the robot for a given duration (to be specific, I'm controlling a semi-automatic car antenna).

Using relays seems to be an option, but it seems like it'd be easier with an H bridge.

Can someone explain how to write a script to do this? or post an example?

Many thanks,

Frank

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