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Benjamin Ellis

Hardware Discussion  - 
 
Hey guys I'm back to start thinking about this to get a head start on christmas. Cait wait to read up on the changes. Question I have a pi 2 b+ and a pi 3. I had issues with the fm adapter cutting off after running for a month due to issues. Does pifm work on pi 3 or anyone know of a good weather proof fm modulator for pi 2 b+?
1
Ken B (K5ENB)'s profile photo
 
You could try the master branch with Pi 2 FM and how well it works for you. Pi 3 FM is not even attempted at this point, but my guess is it won't be in there any time soon.
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Colin Brown

Hardware Discussion  - 
 
Moved my PI and Sainsmart relay into a waterproof box. Just posting to help others get some ideas. Eight 1amp outlets. 
14
Paul Barnett's profile photoMichael Davis's profile photo
6 comments
 
Thanks a ton, +Colin Brown . Like +Paul Barnett I'm looking at doing something similar for an upcoming holiday. This will help. I've already been looking over your referenced enclosures and they look like a much better alternative than what I've been using. 
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Joshua Sargent

Hardware Discussion  - 
 
Is lightshow Pi able to use the renard protocol over RS485 (via a usb adapter)? I received a Renard Plus LCC16 Torpedo board and was hoping to use it with lightshow pi 
1
Tom Enos's profile photoDranod's profile photo
2 comments
Dranod
 
while rs485 might not be compatible with lightshowpi - this little gadget may be more reliable than a usb adaptor:

https://www.sparkfun.com/products/13706
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Sven Stoni

Hardware Discussion  - 
 
So, my Hardware with 32 CH ist ready. I have only one problem. When I close the script with ctrl.+c, the system is hanging. After I unpluged the CAT cable, the system run. It´s an 2m CAT6 cable.
When I plug the Cable again in, than it works, unless ich close the script again.
Where is the problem? The CAT cable?
1
Tom Enos's profile photoSven Stoni's profile photo
5 comments
 
+Paul Barnett Does synchronized_lights.py end normally if you play the song to completion?= NO
Or are you using audio in?= NO
Is it the Sabrent AU-MMSA USB dongle?=YES
+Tom Enos How are you connecting to your RIP?= SSH

I´m using the Lightshowpi_LED Version.
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Sven Stoni

Hardware Discussion  - 
 
Hello, I´m new here, and i want to build a Christmas Lightning this Year. I have already a Raspberry Pi 2, 6x 8 Port SSR Relay Bords, 2x MCP23017, 2x MCP23S17, 1 Stripe of WS2801 LED and some external Power devices ( 2x 5v / 10A, 4x 12v / 35A).

When i connect extrenal Power (3.3V) to the MCP23x17, i have to connect the Ground from the external device also to a GRND contact of the RPI?

THX

Stoni
1
Tom Enos's profile photoSven Stoni's profile photo
7 comments
 
+David Moss
Hello,  THX for your Answer. I´ve find them on eBay. I´ve order 6 pcs for each 20€. I think, the seller was an Chinese Seller. The Shipping was from Germany.
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Ronald Merema

Hardware Discussion  - 
 
I have bought a 8 channel solid stare relay board on ebay, and connected it to the raspberry pi.
But the output's are not switching.
I see the leds on the input switching all the time, but when a output is high, it stays high.

does somebody have the same problem? or doe i something wrong?

I have also a normal relay board, and that is functioning alright.
1
Paul Barnett's profile photoStu Dapples's profile photo
13 comments
 
Thanks Paul Barnett! I will have a read up and see what I can learn :)
3V drive voltage is definitely what I want as I want to run it from the Pi GPIO (as I was going to do with the AC SSR relays!!)

Cheers

Stu
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Bruce Goheen
moderator

Hardware Discussion  - 
Looking for a Pi Zero? Check out WhereismyPiZero.com for updates on who has them! Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related produ…
2
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John Mann

Hardware Discussion  - 
1
Tom Enos's profile photo
 
lightshowpi does not support DMX
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Sanjay Jude D'Souza

Hardware Discussion  - 
 
Testing LED strip.

I received my 1 meter Addressable LED strip and want to use it for LED Spectrum with Lightshowpi. Followed the guide from https://learn.adafruit.com/raspberry-pi-spectrum-analyzer-display-on-rgb-led-strip

I can get the example.py working but when I try playing music file using the code http://www.instructables.com/files/orig/F8J/J4J8/HQCWG0FE/F8JJ4J8HQCWG0FE.py I get error on loading bootstrap import. I setup the env variables as per the guide.

synchronized_lights.py works fine but not synchronized_lights-LED-strip.py

The example.py code works from the installed directory /home/bananapi/RPi-LDP8806

I added PYTHONPATH=$PYTHONPATH:/home/bananapi/RPi-LPD8806 in /etc/environments and in /home/bananapi/.bashrc
Also in crontab -e

Lightshowpi is installed in /home/bananapi/lightshowpi and I can run from any directory without errors.

Can anyone help me with setting of environment variables. I am using Rasbian on Bananapi.

A Spectrum Analyzer shows the loudness of different frequency bands (low, mid, high) in real-time, letting you visualize music. Using a RasPi, RGB LED Strip and some wire, make yourself a dynamic display and media player. This project is based on some great python xmas light code from the ...
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Tom Enos's profile photoSanjay Jude D'Souza's profile photo
37 comments
 
Great. Nicely explained.  It was not sloppy but easy.  Waiting for your web-ui.

Thanks,
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Richard Williams

Hardware Discussion  - 
 
I powered (2) SSRs with (1) 5V 2A power supply.  Will this cause any issues.
1
Tom Enos's profile photoRichard Williams's profile photo
2 comments
 
Thanks Tom
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Ken B (K5ENB)

Hardware Discussion  - 
 
Let's see if I can drive a WS2812B strip with this little board.
1
Ken B (K5ENB)'s profile photoTom Enos's profile photo
6 comments
 
I still haven't had the time to dig into the mods yet, but the results look great (outstanding).  
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James McClain

Hardware Discussion  - 
 
Is it ok to power a sainsmart 5V relay to 5V on raspberry pi? I've seen it done many times but I hear a lot of people say it shouldn't be done. Is it ok to do it?
1
Ben Jacobus's profile photoColin Brown's profile photo
3 comments
 
Yes. Worked well for me. Just watch your amps. 
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chris usey
moderator

Hardware Discussion  - 
 
She has arrived and I nicknamed her Flash... Damn it's fast. I've been using my Pi model B as a home automation bridge. I have been doing a lot of work on that thing the past few weeks and got used to the slowness of the system. Plugging this thing in is going to have me throwing the B against the wall with the wait times !

Awaiting a few more toys to come in so I can start experimenting with pixels, I have a few ideas I want to experiment with ! Plan to install LSP on the 3 soon and will report the findings !
4
Tom Enos's profile photo
 
Looks like I need one of these for myself. +Chris Woznak has said that they work with lightshowpi's master branch using gpu_fft, so that's a plus. But alas I had to replace a bad video card on my desktop so now I have to wait a few weeks to get one. But anyway I still have not meet the full limit of the RPI 2B, so I don't think it's hurting me. +chris usey if you went from a B+ to a 3B that is a big upgrade. Going from a B+ to a 2B was insane for speed, I can only imagine going to a 3B.
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Bennett Lauber

Hardware Discussion  - 
 
I'm setting up a LightshowPi for my 10 y/o daughters birthday dance party.  All the RasPi portions are working fine, but I'm seeking advice on connecting the strings of AC lights to my 8 port SSR.  I was thinking about buying 4 outlets, breaking the link, and making them into 8 separate AC outlet plugs.

Has anyone done this already? I'd like to NOT make whatever novice mistakes I might make in doing the connections. Any advice on which light sets to connect to which port?  (Is port 1 the low frequencies, and port 8 the higher frequencies?) (i'm NOT referring to GPIO ports)

I've noticed that the "hardware" posts here are mostly connections to PI, and to relays, etc and are powering sample LEDs.  Can someone post some of their real-world examples using AC power?

I'll post my setup once i'm done.
1
Tom Enos's profile photoBennett Lauber's profile photo
7 comments
 
Thanks Tom - that's exactly how I wired it. I got the working prototype working fine.. I'm going to take a bunch of photos and create a "how to" write up as soon as I get everything working for the final version.
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David Moss

Hardware Discussion  - 
 
Greetings!  Having resolved the installation hickup, I am now ready to construct a system.  Does anybody have any experience with the 8-channel SSR modue boards made by OMRON?  I found one on e-bay (link attached) but wondering if anybody has used it before?  Thanks

http://www.ebay.com/itm/250V-2A-8-Channel-Solid-State-Relay-Module-Board-OMRON-SSR-AVR-DSP-for-Arduino-/171122672903?hash=item27d7b4c507:m:mrNwCoVuwGxcjCCUmFbfFQw
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Stu Dapples's profile photobrad owen's profile photo
4 comments
 
I bought the omron boards off ebay and drove no more than 4 strings of lights per channel.  Worked for me.  Here was last years light display with 3 omoron boards, and 24 channels of lights: https://www.youtube.com/watch?v=R1bjyjG-eKY
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Benjamin Gräßler

Hardware Discussion  - 
 
Hi im planning to use the Adafruit LED Matrix and a Raspberry Pi with the Lightshow Pi to create an Equalizer for a school project.
But I haven't worked with a Raspberry PI before and don't know if it will work with the Lightshow Pi. Any thoughts or ideas on how i can realise this Project with the Lightshow Pi?
Adafruit Industries, Unique & fun DIY electronics and kits Medium 16x32 RGB LED matrix panel ID: 420 - Bring a little bit of Times Square into your home with this 16 x 32 RGB LED matrix panel. These panels are normally used to make video walls, here in New York we see them on the sides of busses and bus stops, to display animations or short video clips.
1
Benjamin Gräßler's profile photoTom Enos's profile photo
2 comments
 
lightshowpi is not a good choice for your project.  In fact python (language lightshowpi is coded in) does not seem to be suited for this matrix.

The way lightshowpi uses the hardware I don't think it will be an easy task to get it to work with this matrix.  Even adafruit claims only limited success working with this matrix with python.
https://learn.adafruit.com/connecting-a-16x32-rgb-led-matrix-panel-to-a-raspberry-pi/overview
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Stu Dapples

Hardware Discussion  - 
 
I said I would be back! OK, I ran the test song with the Pi connected up to the 8 way SSR board, the indicators on the relays flashed in time to the music, happy days!
However, I have now connected up a string of LED lights to one of the relays. Basically, I cut the power lead and put it through the relay. Once I run the hardware test (state=flash) once the relay goes ON - it appears to latch, it won't switch the LEDs back off... If I drop the power through the LEDs, they go off and once reconnected, stay off until the relay fires again, and it latches....
Guessing something to do with the power going through the relay holding it in? Not sure, any thoughts?!
TIA
Stu
1
Stu Dapples's profile photoTom Enos's profile photo
8 comments
 
A very good example of what you are looking for
http://popoklopsi.github.io/RaspberryPi-LedStrip/#/

Just exchange the power supply with your battery pack and you should be in business 

This uses an Arduino, but the same principals apply 
https://learn.adafruit.com/rgb-led-strips/usage
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Nick Barnes

Hardware Discussion  - 
 
I'm interested in building a wearable high-power LED system as part of a samba costume. It would need audio-in, so it could (for example) work as a "graphic equalizer" style of display. I'm thinking RPi + Wolfson audio card + colour LED strip + some sort of battery pack. Anyone out there made anything like this? Advice on power supplies? Has to be wearable, weatherproof, and good for a couple of hours on a charge.
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Nick Barnes's profile photoPaul Barnett's profile photo
7 comments
 
Have fun, but be aware that the spectrum analyzer tutorial is based on a old version of LightShowPi, and the LPD8806 driver it references has been deprecated and superseded by BiblioPixel.  There's another posting in this forum about it:  https://plus.google.com/116168668537315290590/posts/cvRACjwCt7v

I did my own integration of BiblioPixel into the stable version of LightShowPi (https://plus.google.com/116458931923595367640/posts/WdNyuYJf2nj), only to find +Tom Enos had already done it.  So, instead of further duplicating his effort, we are now working together on LED strip support.

The important thing is to avoid an RGB LED strip with WS281X LEDs.  They use a single-wire protocol with significant constraints on data timing.  There is an RPi driver/library for them, but you may run into issues with doing the audio processing in real-time and meeting the timing constraints for the LEDs.
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Paul Barnett

Hardware Discussion  - 
 
Has anyone tried these SSRs?

http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=hoymk+ssr

There are PCB style relays, and standalone relays with screw terminals.  

Depending on the model, the load can be DC, up to 65V and 25A.  Or, the load can be AC, up to 480V and 100A!  (no, that's not a typo).  There's even a 3 Phase version.

8 of them would be bigger than the SainSmart SSR:  at 62x45x26 (mm) each, vs. 138x71x25mm for the 8-channel.  But, I don't need 8 channels, and I'm considering a build that needs a 12VDC SSR + a 120VAC SSR.
1
Igor Kolesnik's profile photoPaul Barnett's profile photo
4 comments
 
That's actually how I found these relays:  I was looking for one to switch DC.  Most are DC-AC, but this one is DC-DC:

http://www.amazon.com/Hoymk-Ssr-10dd-Dc-dc-Actually-Single/dp/B00ORFSZXI/
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Jonathan Odom

Hardware Discussion  - 
 
I know this had probably been asked before but easier to ask again then scroll and read every post.
Is there a specific solid state board to get led's to fade?
another question
raspberry pi doesn't power on and gets warm to the touch around the micro usb port. had relay board and lights all wired up and went to power everything on and power light came on and faded off. should i give it a few days for the fuse to reset or should i just get another one? tried several cables and power supplies and usb from macbook i think my relay board is doing same thing haven't had the chance to test it with my arduino yet.
1
brad owen's profile photoJonathan Odom's profile photo
7 comments
 
+Alex Top +brad owen  relay board was fine tested with arduino and everything worked still nothing on RPi so will be getting a new one. will definitely get that board when i get the chance. 
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