Author Topic: Help verify setup of PICap. Smoke let out...  (Read 586 times)

Offline duddleydo

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Help verify setup of PICap. Smoke let out...
« on: May 28, 2019, 04:40:15 PM »
If someone could verify my setup is correct. My PiCap and Pi are smoked.


Here's the setup I am using.
Verified power output of PSU is 24vdc and leads are correctly.
24Vdc PSU. V+ to PiCap V input
24Vdc PSU. V- to PiCap GND input
PiCap Jumbers- 1&2, 3&4 (for 7-24v input) are jumpered
Jumper for PWR PI jumbered.
 
I didn't have any lights connected, VR1 smoked and PI is toast.
A week prior I set up my PI with FPP and was operating correctly. I also followed the youtube video recommended on Falcons setup info from Listentoourlight.
[size=78%]https://www.youtube.com/watch?v=PS2OaGXIoj4&list=PLzMmKH8vOPBY0Yze1wNmKyv0yNOOZl8VA&index=13&t=898s[/size]


Did I hook this up wrong, or should I have pulled the PWR PI jumber? I'm hesitent in ordering another PI and PICap, if this will happen again.
Any help would be appreciated.


Duddley

Offline Poporacer

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Re: Help verify setup of PICap. Smoke let out...
« Reply #1 on: May 28, 2019, 06:11:13 PM »
There are 3 jumpers and 6 pins. Exactly how did you have the jumpers set? A picture of the jumpers would help a lot. But If you have the jumper in place marked PWR PI, then that should be correct. The PWR Pi jumper is to configure where the PiCap is going to get its power. The video you mentioned does say that with this jumper in place, your Picap will get its power from the PI which if you are using a PixelController version is not correct.
« Last Edit: May 29, 2019, 02:37:11 PM by Poporacer »
If to err is human, I am more human than most people.

Offline Sawdust

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Re: Help verify setup of PICap. Smoke let out...
« Reply #2 on: May 28, 2019, 06:39:11 PM »
No written instructions will cause this a lot.  Even DiY'er need something to guide them.

Offline Poporacer

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Re: Help verify setup of PICap. Smoke let out...
« Reply #3 on: May 28, 2019, 08:26:57 PM »
No written instructions will cause this a lot.  Even DiY'er need something to guide them.
I don't know what you are talking about, the vendor page has a couple links. They even have a forum topic dedicated to the controller. And there is a link to a YouTube video on how to use it....

Offline duddleydo

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Re: Help verify setup of PICap. Smoke let out...
« Reply #4 on: May 28, 2019, 09:18:23 PM »

Sorry, just noticed half my post was missing.


Verified 24 at PSU
Jumpers:
PWR Pi Jumpered
1&2 Jumpered
2&3 Jumpered


No lights hooked up.
Followed "listentoourlights" from product page to the letter. Only difference was 24vdc PSU
« Last Edit: May 28, 2019, 09:35:52 PM by duddleydo »

Offline duddleydo

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Re: Help verify setup of PICap. Smoke let out...
« Reply #5 on: May 28, 2019, 09:21:55 PM »
Sawdust,
I followed Falcons advice and they suggested this youtube video by "listentoourlights"


https://www.youtube.com/watch?v=PS2OaGXIoj4&list=PLzMmKH8vOPBY0Yze1wNmKyv0yNOOZl8VA&index=13&t=1s


I'm just double checking my math.
« Last Edit: May 28, 2019, 09:35:01 PM by duddleydo »

Offline duddleydo

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Re: Help verify setup of PICap. Smoke let out...
« Reply #6 on: May 28, 2019, 09:29:56 PM »
Poporacer,
You are correct. I did have PWR Pi jumpered per the video. (13:10)
 He was using a 12V psu with all the jumpers connected and the pi powered externally.


That is where it went..boom then. Appreciate the feed back and heads up.


If I could figure out how to post with a picture I would. FYI. All jumpers on in default.

Offline Sawdust

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Re: Help verify setup of PICap. Smoke let out...
« Reply #7 on: May 28, 2019, 09:45:07 PM »
No written instructions will cause this a lot.  Even DiY'er need something to guide them.
I don't know what you are talking about, the vendor page has a couple links. They even have a forum topic dedicated to the controller. And there is a link to a YouTube video on how to use it....

Sorry, I didnt seen any guidance to not power Pi from the PiHat.  Most, if not all others, have a regulator or buck unit so the configured input could power the Pi.  The video doesnt discuss, nor did any forum post I read.

User manual / instructions buy forum - just wow

Offline Poporacer

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Re: Help verify setup of PICap. Smoke let out...
« Reply #8 on: May 28, 2019, 10:41:06 PM »
Like you said, the video did not provide any guidance to not power the Pi from the PiCap. That is because you have the option to select how you want to power the PiCap and that was explained. It DOES have a converter so that it could power the Pi, but you have to actually tell your PiCap how to handle the power (AKA Power Pi Jumper) At approximately the 3:00 minute mark it explains that if you are going to power the PiCap from the Pi that you need this jumper installed (I think he got this backwards). Since there are only two options for powering the PiCap, either from the Pi or from a power supply and he explained that if you were powering one way you have to have the jumper installed, then most people would assume that if you were powering it the "other" way, that the jumper needs to be removed? Maybe he should have expanded on that, but it was clear to me.
But because there is a possibility that an incorrect jumper setting could fry things, they should probably put an informational sheet in the package explaining how to properly configure the jumpers?
« Last Edit: May 29, 2019, 02:42:54 PM by Poporacer »

Offline duddleydo

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Re: Help verify setup of PICap. Smoke let out...
« Reply #9 on: May 28, 2019, 10:53:02 PM »
I missed that part at the beginning after watching it on two different occasions. My confusion came in when he powered everything up with all jumpers on and power to the Pi.
I ordered another Pi and PiCap this week. I still have hope...


I'll be removing the PWR PI jumper on the next go around. Thanks for the double checking.


Thanks

Offline Poporacer

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Re: Help verify setup of PICap. Smoke let out...
« Reply #10 on: May 28, 2019, 11:13:03 PM »
Hold on a sec. After further research (A post from Dan Kulp) he stated that the PWR Pi jumper is set to use the power from the PiCap to power the Pi (which makes sense because the Pi couldn't supply enough power for more than a few pixels). So I think the statement in the video might be incorrect? I think he didn't have problems because he was using the same voltage. Did you have power supplied to the Pi as well?
If you did have the 1-2 Jumper and 3-4 Jumper and the PWR Pi Jumper installed and only power to the PiCap then there might be a problem with the PiCap. Contact David directly and he will be able to figure out if you had something wrong and if it was the board that was defective, he will make it right!
Are you running 24V pixels? Why powering from 24V?

Check this out from the forum
https://falconchristmas.com/forum/index.php/topic,6139.0.html

Did you purchase your original PiHat from Pixelcontrollers.com (I was assuming that, but figured I would ask to be sure)
« Last Edit: May 28, 2019, 11:32:26 PM by Poporacer »

Online dkulp

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Re: Help verify setup of PICap. Smoke let out...
« Reply #11 on: May 29, 2019, 05:57:58 AM »

Even if powering the Pi from the Hat, the OKI buck converter that is on the hat is only rated to something like 13 or 15V.    Sending 24 through it would fry it and I'm not sure what all else.






Offline Poporacer

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Re: Help verify setup of PICap. Smoke let out...
« Reply #12 on: May 29, 2019, 06:48:54 AM »
Even if powering the Pi from the Hat, the OKI buck converter that is on the hat is only rated to something like 13 or 15V.    Sending 24 through it would fry it and I'm not sure what all else.
The Specs on the web page and on the board itself indicate that it is able to handle 7-24 volts, is this a typo?

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Re: Help verify setup of PICap. Smoke let out...
« Reply #13 on: May 29, 2019, 07:09:07 AM »
Even if powering the Pi from the Hat, the OKI buck converter that is on the hat is only rated to something like 13 or 15V.    Sending 24 through it would fry it and I'm not sure what all else.
The Specs on the web page and on the board itself indicate that it is able to handle 7-24 volts, is this a typo?


Interesting... I stand corrected.  What's interesting is that the spec sheet actually states 36V. When I was designing my boards, I explicitly excluded the OKI's and the voltage range was one reason, although the main reason was only 7.5W (1.5A).    I wanted to make sure we have the full 2A.   That said, that was several years ago... I'm likely mis-remembering.  The AMP rating was definitely the #1 reason.

Offline duddleydo

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Re: Help verify setup of PICap. Smoke let out...
« Reply #14 on: May 29, 2019, 04:25:49 PM »
Poporacer,
Yes, I am using 24 LED Floods and using a 24v PSU
I did have 1&2, 2&3, and PWR PI jumbered. As well as powering the Pi with the 5V wallwart.


I contacted the customer Support and David answered. I stated my set up and jumper setting and didn't get any explanation as to what I could of done differently.


Here is the conversation below.
Customer e-mail address:
Quote
Customer message: Looking for some assistance. Pi hat and Pi. Let the smoke out.
Running 24v (verified voltage) PS, rechecked input/outputs +/- are good (not crossed) on both end PS to Pi hat..
Jumpers 1&2, 3&4 for 7-24v - jumpered
Jumper Pwr P1 -jumpered

No lights connected.

Smoked VR1 and Pi.

I had set up Pi with FPP, a week ago and good to go without Hat? Any ideas as to the issue what could of caused the release?





From David:


Hi
 
Not sure. Have never had a problem with the Picaps.
 
David
Quote
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