PWM Expansion Issue

[dpitalo]

My PWM expansion module started acting up today. I was rewiring some of my LED drivers today and not it appears that the expansion module is no longer communicating with the relay box. I didn't change any of the code on my INO file.

I've tested the voltage on each channel coming out of the expansion and it's solid at 10v across the board, regardless of what time it is. I've even tried changing the time in the INO file to say that the LEDs are off, but no luck.

Is there a way I can test the expansion module without it being connected to see if I killed it?

The PWM channels coming out of the relay box are working fine.


Thanks!

Dave

[rimai]

Open the enclosure. There is a status led inside.
Does it blink 3 times when you connect the usb cable?

[dpitalo]

Nope, the status light just comes on and stays on.

[rimai]

I think it is damaged

[DrewPalmer04]

Any wires you hooked up wrong or? Damage would usually mean human error of some sort. If you can think of anything that "possibly" could have happened maybe we can narrow it down for you...

[dpitalo]

I checked and double checked all the connections before powering everything back on. If it's borked, it's borked...I'll order a new one tomorrow. I've been wanting a couple other things as well, so I guess that timing worked out.

Roberto, is there a way to just connect just the PWM expansion module via USB to a PC and run any sort of diagnostics?

[rimai]

Only if the status light blinks when you connect the expansion bus cable.

Sent from my Galaxy S3 using Tapatalk 2

[dpitalo]

Well crap.

I was browsing through the user manual and can't see anything that I did that would be out of the ordinary or any different from the way I originally had everything connected. Should the status light blink regardless of what generation module it is? I've got the 1st generation...I'm guessing it was just a change in look, no so much in hardware.

[rimai]

Hardware is the same for both gens. It should blink on both.

[dpitalo]

Hi Roberto,

Got the new PWM expansion in yesterday. All is well now.

Thanks for the quick shipping and responses.

Dave