
Jerome
France
Asked
— Edited
Hi,
I would like to use 2 motors windscreen wiper. Amp of these motors is important, i bouhgt this H bridge :
H bridge BTS7960B
My questions are :
- how to connect this H bridge on my EZ Board ?
- what's R_IS and L_IS ?
- what's R_EN and L_EN ?
And on EZ Builder, which control can I use ?
Thanks for your answers.
Jerome
http://www.ez-robot.com/Tutorials/Help.aspx?id=70
The board might be different but the concept is still the same, if more help is needed don't be afraid to ask.
Not quite sure what they do, sometimes you have a direction selector which could be the R_IS and L_IS, so high on R_IS and high on R_EN makes the one motor spin in one direction, low on R_IS and high on R_EN spins the other way.
Or
High on R_IS spins one way, High on R_EN spins the other.
Ask the seller for the instructions and wiring information to be sure.
I don't understand this H Bridge.
I tried with 4 wires
- GND
- VCC / +5v
- and each out (R_IS, L_IS, R_EN, L_EN, RPWM, LPWM)
and it's didn' work.
I hadn't signal out. *confused*
I found this documentation, but it's chinese for me *stress*
There is PDF and scripts.
What do you think about it ?
Thank you.
Jerome
with the documentation
jerome
Chances are you will need to apply a digital high to more than one pin for it to work.
You will probably find that without English documents nobody on here will be able to help you.
If you are willing to risk damaging the H-Bridge and possibly the EZ-B (I make no guarantees this is safe) you could try this.
Connect R_IS to the Signal of D19
Connect L_IS to the Signal of D18
Connect R_EN to the Signal of D17
Connect L_EN to the Signal of D16
Now add 4 Digital Toggle controls, set them to D19, D18, D17 and D16
See what happens when you turn on D19. What happens when you turn on D18. D17. D16... Then combinations of both.
You may also need to apply a Signal wire to RPWM and LPWM. If you aren't fussed about individual speeds you can connect one signal to both pins. Then add a PWM control for the Pin(s) and move the slider to 100%.
If you don't want to risk your EZ-B you could simulate digital highs and PWM100% with 5v to the pins mentioned above.
In all cases you will also need to provide the H-Bridge a common Ground, an external Vcc for the motors and probably a 5V to the H-bridge.
But really, never buy a product that has no English (or whatever language you understand) data sheet.
black ground D8
red 5V D8
yellow (combine RPWM & LPWM) into one wire) D8
Green A L_is d9
Green B L_en D10
Orange A R_is D11
Orange B R_En D12
I found
Jerome
Don't know why I'm looking at this anyway here is the circuit diagram you need a common ground as Rich said between the EZ-B and the H Bridge. Do you really need a 43 amp controller for a wiper motor? as your diagram shows you'll need 2 controllers for 2 motors a L298N controller might be a simpler setup.
As @jstarne1 mention, when buying hardwares, it's best to purchase the one recommended in the tutorials, easier to use, well common among the community, already been tested, and we can help you.
Yes the schema is mine (sorry, I didn't say it !). It's work.
I tried pj's and rich's mounting, but it didn't work for my part. I searched a lot, and I do not know my mistake.
I am a beginner, and it is true that I should limit myself to tutorials EZ, I begin to understand.
Thanks for you help.