Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: dave.m on July 05, 2007, 09:57:33 PM

Title: H-bridge from robotpower.com?
Post by: dave.m on July 05, 2007, 09:57:33 PM

Hi I'm new to this and purchased a couple of simple h-bridge controllers from robotpower.com.

I'm using it in the H-Bridge configuration so I have one motor and battery connected to the controller.  The controller has a bank of 8 connectors on the front which are supposed to be used for controlling motor direction, speed, reading the current flow, etc.  I'm just in over my head in terms of knowing how to connect something like an R/C receiver to the controller and would very much appreciate any input / suggestions --  I don't want to experiment with it and end up frying the controller and/or the R/C receiver. (PS.  I've left a message with them but have not heard anything so I thought I'd ask around here.)

Any held would really be appreciated!

Dave

Title: Re: H-bridge from robotpower.com?
Post by: dunk on July 06, 2007, 02:57:02 AM

is this the controller?
http://robotpower.com/products/simple-h_info.html (http://robotpower.com/products/simple-h_info.html)
in which case it looks like you have bought the wrong controller:

Quote

The Simple-H does not have any on-board logic to interpret R/C, serial or other commands.

dunk.

Title: Re: H-bridge from robotpower.com?
Post by: dave.m on July 06, 2007, 05:54:01 AM

Would something like a Basic Stamp work with that controller?  If so, what type of connections would be required?

Thanks!

 Dave


PS: I bought 2 of the controllers and don't want to throw away my $$.

Title: Re: H-bridge from robotpower.com?
Post by: Steve Joblin on July 06, 2007, 06:29:23 AM

According to the documentation, a wide range of command sources from switches to 555 timer circuits to microcontrollers and BasicStamps may be used to control the Simple-H.  The documentation (http://robotpower.com/downloads/Simple-H-user-manual.pdf) describes how you would connect it to a microcontroller.

Title: Re: H-bridge from robotpower.com?
Post by: dave.m on July 06, 2007, 06:59:48 AM

Quote

describes how you would connect it to a microcontroller

Yeah, except I've read it several times but still don't understand it.

For example, I'm assuming there's a contact for ground from your microcontroller on the CN1 -- but don't know which one it is. 

I think they're saying that I can connect to PA and EN and be done with it.  I'm not sure and don't really want to fry the controller or my microcontroller in the process.

Can anyone provide a complete newbie some guidance?

Thanks!

Dave