URGENT-Need some help with HB-25 motor controller

b0ib0i07

I am trying to program a dc motor using the HB-25.
At first, i tried the sample program found on parallax website under the HB-25 product documentation.
The motor move smoothly forward and backwards.
Afterwards, i tried to program PWM.
The motor works fine but after a few tries, the motor would not move.
I re-ran the sample program found in the HB-25 documentation and this time round, the motor would not move either.

*12V dc motor used

*12V dc, 1.5A supplied to the HB-25

May i know what is the fault that had occured?

RobotWorkshop

What do you mean by "Afterwards, i tried to program PWM."?? Do you have the example code you used for this?

To help you we need some more details:

- What controller are you using? (BS2, BS2SX, BS2PX, etc)

- How is it wired up?

- You have a 12v motor but how big is it and is a 1.5A supply enough?

- The example code that was originally working.

- The code and procedures you used for trying the PWM mode (whatever that is).

With some more details we may be able to help.

Robert

W9GFO

There is a little quirk with the HB-25s. If you power them on at the same time as powering on your microcontroller there will be a fair chance that they will not respond. Sometimes they work fine, other times they don't.

The solution is to power them on a moment after the microcontroller.

Rich H

b0ib0i07

I got it up and working again. Think is my wiring fault. Thank you guys for the intention to help

sam_sam_sam

W9GFO wrote: »

There is a little quirk with the HB-25s. If you power them on at the same time as powering on your microcontroller there will be a fair chance that they will not respond. Sometimes they work fine, other times they don't.

The solution is to power them on a moment after the microcontroller.

Rich H

Thanks for pointing this out

I have seen this on my Gate Opener that some time when you turn on the power switch some time it will not work