France
Asked — Edited

Connect Double H Bridge Drive

Hi,

I bought a double H Bridge Drive, here :

H bridge on ebay

I saw this DJ's tutorial

DJ'S tutorial

But I don't understand how connect Ez Board and this H Bridge, because I don't Vcc port on H Bridge.

I did some testing, but I have only one engine running

Can you help me ?

Thank you.

Jerome


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United Kingdom
#17  

PWM is simple to set up.

Assuming you have connected as the tutorial video using the 5th signal wire for both enable pins, add a PWM control and assign it to the port that is connected to the enable pins. The higher the PWM the faster the motors will spin.

You could use a script too using the PWM() command but why complicate what's simple?

France
#18  

I'm having with another H bridge. I wish you informed.

thank you for your help

#19  

Can you post a picture of your last wiring setupi?

France
#20  

Hi,

Voilà the last wiring

User-inserted image

I have connected only the motor B (out B) and it's good with: In3 = D3 (ext) In4 = D4 (ext) ENB = D6 (ext) / config in PWM +5v = D16 (+5) ==> my motor works very good

If I connected only the motor A (out A) and it's bad with: In1 = D1 (ext) In2 = D2 (ext) ENB = D7 (ext) / config in PWM +5v = D16 (+5) ==> my motor doesn't work (not even a noise)

Part A out is defective. It seems to me that this card can suporter two engines windshield ice. I just order another

H Bridge

J.

#21  

Great, that's how it should be wired!, nice job...its a shame your hbridge is faulty.

#22  

Yes, Looks good. Keep your head up. I burnt up three H-Bridges before I got everything working.

Keep in mind you may beed a more heavy duty H-Bridge then what you ordered. Pololu has some nice ones that will work at a good price. You'll need to know how many amps your motors pull and the operating voltage.

Brazil
#23  

Hi.. So if I get it rigth, if I want to use a diferent power source only for the motors, I should wire that to the Vcc and ground on the h-bridge, Is that correct? And do I need to connect the 5v To Ez-B too? Thanks...

United Kingdom
#24  

I just fitted one of these to Jarvis

Basically, 5 signal wires, D15 to D19 to each of the In1-In4 plus PWM split to both enables. VCC from battery to VCC on H-Bridge Ground from D19 to H-bridge ground Vcc from D19 to H-Bridge 5V