Wow, this looks great! Well done. Thanks for posting your code - it is very easy to read and gives me a huge head start in understanding the minim library and how it could be implemented for a project I've had in mind for a while. Great work, thanks again.
Thanks for the project info. I made my own using a 64x32 display (more compact [3mm pitch] than 2 of the 32x16), a Teensy 3.1 and a Smart Matrix Shield V3 for the Teensy. I also modified the code somewhat. My only issue is that it only works from my MAC at this point and I don't have a case/enclosure for it yet.
SNS Kreationz, Thank you, your project works very well, as the samples. I delay arming and understanding the code but I succeeded thanks to you. excellent projects your page. Thank you.
Great job... Just wish there were more examples/libraries out there for the non-AVR arduinos, like ESP8266 & STM32, which are so much faster. Faster means better frequency resolution while keeping loops/second high.
+SNSKreationz Did you use the instructions in the Adafruit datasheet for supplying the power to the LED matrix as well as connecting the matrix to the Arduino?
I will be getting the PCBs soon. I dont have time to handle sales, but one of my friends will put it on his online store when they come in, I'll give you a link when its available.
Stephen, maybe we can do a joint venture. You work on your end and I can try on my end. I was hoping to start on building a matrix first. With your trial and errors, do you find it best to build smaller matrix versus one larger one? For instance, a single 32x128 versus eight 16x32s? I noticed you wrote you purchased your matrix(s). I checked out the site you posted about, about $25/matrix. Each comes with some device and can daisy-changed, but there dimensions(company states on there site) are not all the same. That there are variations in sizing. I was you can point me in a direction that can help me get started and get more info. Most links online are people showing there stuff but not explaining. Thanks a million.
I have no idea if a single 32x128 or eight x 16x32 will be easier. I know for sure an arduino can power a single 16 x 32 with more than 50% headroom with 8 bit colour. Other thing is that a teensy's max baud rate is significantly higher than arduino so it can be the "middle man" between computer and several arduinos. That is how i did the 32 x 96 matrix. I have new PCBs coming so the hardware is practically done.If you want to help with the programming that will be awesome. It is no secret what I am doing. It would be very similar to the code I posted on this vid.
Are your pubs custom design or you found the ones that tailor your needs? If you found specific ones, what is the model and manufacturer so I can read about it.
Ive wanted to make exactly this for like two years. Id like to make the matrix itself too but Ive yet to see anything on making a 32x64 rgb matrix. I really want the sound visualization involved too >.>
hi, are you still active ? i have some issues with this project, do you run the processing and arduino code at the same time ? if i try to run it at the same time it will not work because it is not possible to run 2 programs on the same port, so how did you do this ? pls help i need it for school
This looks amazing! I want to make one of these Spectrum analyzers! I don't have a clue what parts it takes or how to build or program it but, it would be awesome. I could not find the kit. Please help
Is it possible to construct a smaller version of this setup with less arduino devices and LED's? The description to the file in your stated you used two arduino devices. I'm specifically wondering if it's possible to construct an 8 band spectrum analyzer with an ArduinoUno with your code. Thanks!
yes it is 100% possible. i started with an 8x8 matrix actually. you will need to work on the arduino code from scratch basically and adjust the bands spacing in processing code.
Hi Stephen, I am not familiar with writing code, but I am a quick learner. I did go to school for computer programming, therefore I can understand the logic of code. I was calculating the cost to custom build my own matrix and purchasing already made matrix and came to realize it would be more economical to buy several 32x16 matrix. Also, the amount of soldering 4096(128x32) LEDs would get me sick. And that is for just a left side for my project, a full project would be double. I will be a grandpa by the time I finish soldering all those leads. Can you suggest some links in coding, chips that would best work for mentioned project? Videos or reading material that will accelerate this creation?
i will make that project reasonably easy to undertake with the pcbs i expect to get in approx 3 weeks (if there is no stupid mistakes in my designing) with respect to hardware. as soon as i get those pcbs ill be trying to work on that scale of ~8-16 matrix for video playback. ill show you how i intend on making them work together and if you have any ideas you can help work on the code if you like. the hardest park will be the serial and i2c communication which you can learn easily online.
How did you calculate the required voltage and current needed for a custom project such as this one. I just bought an audio spectrum "kit" off of adafruit and was wondering how you calculated your voltage and current for both the arduino and the LED matrix...Assuming you are using an arduino
I get my voltages and currents from datasheets mostly.These particular 16 x 32 RGB panels use 5v and under 2 amps each. I did use two arduino nanos but they got power from the computer. Btw, can you link the adafruit product? I cannot find it on the site. Thank you.
MrSurfer115 from what i see, as long as you supply your arduino uno with 7 - 12v in the dc input you should be ok. their specs say 2.4 - 5v. the dc input is regulated to 5v through the arduino and so the panel will get that 5v
Ya the transformer I got has multiple voltage settings and it supplies the correct current automatically according to the voltage. I just have to calculate the voltage for the arduino and the matrix which im guessing will be around the 7-12v range
Do you need 2 ardruinos for the one display and also is there any unit you could buy or make that would do the fft instead of using a computer or is it the ardruino doing the fft. sorry for posting on both your videos but this comment seems to be more active. thanks ben
Very nice video. I have a quick question I was hoping you could answer. I've built a very similar setup to yours utilizing your codes for Processor 2.0 and IDE and they work great. However, despite the panels being mounted in the upright position per the arrows on the rear PCB board, the analyzer is upside down. Any thoughts? Where in IDE would I adjust the code to flip the layout? Thanks and again, great video!
it is upside down to make it easy. in "lightcolumns" function, you need to change the for loop values and in main loop change the lightcolumns(31, led1); to the opposite column e.g. lightcolumns(31, led32); instead
SNSKreationz Thanks for the quick reply. Basically what I need to do is rotate both displays 180 degrees. So presently, the EQ works form top to bottom (upside down); bottom being peaking(Red). I need the whole display to work from bottom to top as per the "UP" designation on the rear of the panels. If it would help, I could send some pictures to aid in the process.
Ryan Bailly i know exactly what you are talking about. you just need to reverse the loop values in lightcolumns() to flip vertical and reverse led1 to led32 to flip horizontal. if you cant do it let me know and ill do it when i got some time.
Hello Stephen. That is great to hear. Maybe we are twins? Do u have a link for your previous project? Do u have any pointers to share for me to start learning the basics of construction & coding, as well as components normally. Nothing specific since u r pressed for time.
i have no idea how i replied to you with that account. ill start by rebuilding the 32 x 96 which can be done as soon as i get some more rgb matrix. ill share the project on here
does anybody know if these panals are chained together ? if so where does the second arduino get plugged in, arduino to first panal input then output of first panal to second panal input only leaves the output of the second panal. If there not chained and both arduinos are connected to the inputs of both panals surely they would just display the same thing, or are the arduinos connected together in some way, please help
I have replaced the pc with a udoo for processing. however I have problems with the serial comm. I have not tried with raspberry pi, but it should be able to it too. I chose arduino because it is what was the first thing i grabbed.
it is very easy to go from 1 to 2. you just need to add more bands and devices in the processing software and 2x the hardware. the arduino code is exactly the same.
When do you guys expect your website will be updated with your kits? I've wanted to make a spectrum analyzer for years but still don't know how to process audio signals too well. Thanks
SNSKreationz Hey, I checked the website as well as Adafruit's forums and I couldn't find much on this project. I am new to arduinos and I wanted to make this my big attempt to make something. Do you know where I could get some DIY info to tackle this project?
You're already at one of the biggest tutorial libraries on earth. Type what you're looking for into the search box, or even better try google it! "how to build a DIY arduino spectrum analyzer" should get you there.
James Donaldson I've been doing that for days and I can't seem to find a project that keeps it all contained on just the arduino and can handle more than 7 frequency bands. I'm struggling to find the right hardware to deal with something like a 16 band spectrum (which would be pushing it for an arduino from what I can tell).
***** This may possibly help you in some way, from what I can tell it has about 16 bands - though it does require a computer for signal processing :-/. www.instructables.com/id/Arduino-Processing-Audio-Spectrum-Analyzer/
I do not sell kits for this. I will, however, have PCBs to get rid of the wiring at a low cost in about a month. the other items can be found on sparkfun, adafruit and even ebay.
In your code you used 2 ports for each rgb matrix, how does this work? I thought you would have one port, send the data to the Arduino using it and then output to the matrices. Could you outline how I can choose the correct ports?? Thanks :)
this is a RGB panel. the code can work with a RGB string like in my waterfall spectrum analyzer video if you like. to get a full 32 band like this would take a bit of programming work, but can be done using the code provided as a reference.
SNSKreationz cool! one more thing, do i need any kind of arduino drivers or processing for my rgb strip? i was researching a little and i thinks there is different models for strips. Any idea? Greetings!
Awesome work Stephen! Did you get the PCBs yet? I'm gonna build my own matrix using WS2812b strips and would love to integrate a spectrum analyzer like yours. I want something bigger for when I am dj-ing. Thanks!
yes the pcbs are done. waiting for a couple more parts to make the kits. they should have arrived already, but i work far from my house and wont be there until the 30th....which is a long weekend.
SNSKreationz My 2812b matrix is done and is awesome. But I like you spectrum analyzer the best out of all the others. Are you willing to share the code? thank!
Kurt Woolford Sorry, I found your code on GitHub: Real-Time-RGB-Matrix-Spectrum-Analyzer. But I think this is written for 2801 strips? Not sure but I see CLK "clock" variables in the code. The 2812 does not have CLK anymore, just DAT for "data". Any ideas on how to modify the code appropriately. Thanks so much!
Kurt Woolford i honestly cannot remember because that video was taken long before it was posted. ill check up on that. it should be easy to convert tho.
Cool project! I'm building one myself, using a 16x64 Red/Green matrix I picked up. I overestimated the documentation I got with it (aka, none). I haven't got it working yet... Do you have any documentation or logic analyzer traces you could share? I've searched the net, but haven't had much luck. My interface pins are likely similar to yours (GND, EN, R1/2 and G1/2, LA/LB/LC/LD, and LT SK) I'm guessing at the timing and polarity of each... Any tips would be appreciated. Thanks!
Sir Can you tell me how can I use this for 16x32 rgb board Adafruit How can I RUN this without PC mean without executing .pde file. I need stand alone. Input from my mobile directly. from Stereo pin.
How are the PCBs going/turned out? Are they what you expected? I found online a company that made rgb matrix embedded on a PCB. with I believe three wire control and the ability to daisy-chain them. www.oharap.com each individual led can be controlled independently. It's the RGB-123 Kickstarter
Amazing! This is pretty much exactly what I wanted to do as soon as I saw those RGB LED matrix panels on adafruit. Great minds think alike! I'm curious if you are willing to share your plans or sell them assembled? I think if you were able to package this in a standard Receiver/DVD player sized enclosure you could sell thousands of them for hundreds of dollars each.
yes i bought it specifically for this lol. The plans for this is nothing out of the ordinary - Arduino, panel, pc, and some wire with instructions all on adafruit site. I do not really care to sell them, but if anyone wants one, I wont mind selling. I already have PCBs in fab for these panels which would be a cheaper, smaller (and better for my purposes) than the nootropic backpack. I would sell those PCBs in the future if there is interest.
SNSKreationz Yeah I guess the Arduino code is the only part that I don't have access to. Are you using the source code from Paul Bishop posted a few years ago? I wonder if any company out there has a 64 band spectrum analyzer IC to help simplify the project. I have only seen 7 bands ICs.
Matt Hessler I am using the adafruit library for the arduino code, paricularly the drawpixel function. Processing does the actual analyzing on the pc using the minim library. besides these libraries, i did not use any other code. If i get some time between other projects ill clean up and post the code
SNSKreationz Can you update your github libraries / post the stuff that was linked to your site which is apparently down? There's literally no explanation on your first ws2811 library and it's unbelievably infuriating to have to change / google your name to find you / your videos
@ noel kim i cannot reply to you for some reason. I am working on code to do that right now. i have no idea when it will be finished but i have something working now, just not anywhere good as analyzing the mic input.
guven hun can you give me more information? if you follow all the instructions and download all the libraries this would work. the least you could do was to try audio jack also and see if there was a difference.
guven hun you wont even help yourself, so how can others help? YOU ALONE should not do anything with arduino if you expect everything to be given to you on a silver platter. i am no expert. everything I did here i worked hard to figure it out by myself. I did not go whining on youtube. thank you for wasting a few seconds of my time again.
Good mornin. I really liked your video. I was online looking for a way to build an audio spectrum analyzer, similar to yours but on a grander scale. I am almost done building my man cave in garage(5 feet off the ground-we have tall ceiling in garage, about 22 feet tall). I have big plans for my room, including several infinity mirrors on ceiling as well as other rgb led lighting. Anyways, I would like to build a 32x128 model, one for right signal and one for left signal. It's just one but reversed to give the illusion of two signals. Read your comments on you building/selling a board. Can you point me in the right direction to get this accomplished? I would also like the option to code it for verbiage and designs. This will be over my computer station with six monitors. Also, I would like to connect it to a sound sensor so it can react to it via sound controller. Thanks a millio.
i have previously done a 32 x 96 spectrum analyzer. 32 x 128 should be possible if there is no communication limit problems. What you are planning on doing i am already working on with respect to having "video playback" but i am waiting on pcbs for those. i just have 50+ hrs work/week then its summer so i make the most out of my weekends, no promises, but ill have this done in winter and ill share code and hardware list.
Yes, you would need to change the computers active audio input source. This can be done in windows via control panel under "hardware and sound". You can also change the active audio input by right clicking the speaker icon in the windows systray and selecting recording devices.
Alright thanks a lot for that :) I already know how to change the default audio input on Windows, but I was just wondering if there was any way to change it within Processing.
Unfortunately, minim only has the ability to monitor the computers active audio input source. Are you trying to use the computers audio output as the minim audio input source?
My intention is to use Processing to send FFT data to an Arduino. Initially, I tried to find a way to use the computer's audio output as the minim input, but I gave up on that. Instead, I decided to connect the headphone jack on my phone to my computer's microphone input, and 'listen' to the mic through my computer's speakers. This solution works pretty well, but isn't as elegant as I'd hoped. Is there any other method to use my computer's audio output as an input to Processing? A different library perhaps?
Stephen, everytime i post my email or skype name, it gets deleted the next day. I searched for your name but there are a large number with your same name. Maybe a hint to narrow it down.
Pisthing it will work for any song and it is real time. for this setup it cost $80 for both 16 x 32 matrix, $60 for 2 arduino uno, then wire and breadboard is probably another $20. shipping was extra when i bought these parts. I never thought there would be this much interest in this and i recently decided to make a PCB to make this easy and buy these matrix wholesale to get them cheaper to anyone who is interested. It will use the arduino nano and will cost around $90 max (without soldering and shipping) for this setup if all goes well.
Pixelated Thomas no. it is through a computer for the audio. an arduino is connected to a computer which does the fft. if you read through more comments and the example code most of the information you need is there.
i`ve read every single comment, open every single link, and the only thing i dont get is how the signal goes in the arduino, i know tha is a software the one that conver the signal, but i dont understand how the arduino take that signal and shows in the matrxi. can any one help me plz i am very intrested on doing something like this. thks
@israel ordonez The signal goes into the Arduino through the Serial cable from the computer. The program Processing analyzes the sound input, converts it into Serial code, and sends it to the Arduino, which in turn displays the appropriate levels of light on the RGB matrix based on the code it is already running and the input it is receiving from the computer.
Not seeing spectrum analyzer. The Bass and drum bass came on and the low end was unresponsive yet was showing activity when there were no bass notes. The whole thing looks random. Now, the question is what app or code drives it?
Nice, and thanks! For me the display was reverse, we were able to modify you code is it alright now for my display I was using code for 16X32 spectrum analyzer found on instructables ( But it was not as smooth as yours and it had the problem with higher frequency being low on the display), which is display row and column the otehr way ( as adafruit libary example also does). My display is fix on a display case So I couldn't reverse it physically, but now it work . I like you changing colors. Since I have only one display I cut processing code so it does not send anything to another serial. I've cut the "string xaa" to "string xfff" too. But when I reduced other parameter to 32 instead of 64 i get this error for the line 80: "ArrayIndexOutofBoundsexception 32". The line code 80 is : freq_height[32] = (fft.calcAvg((float) 20, (float) 60)); the "32" is originally 64. Also what is the use of this line? I get it does fft average but of what. if I put it as a comment, the code still work. It's not a big problem, the program work at 64, if I cut everything that is serial2, it's just that processing calculated ftt for 64 frequency but use the first 32, it's just not optimal. I don,t know if you still answer. But still great work. I search a lot and it's best Spectrum analyser for adafruit display and Arduino I've found. Work find with processing3.0 now minim library is supported.
do you still get that problem? I believe you need 0 - 31 so it would not know what to do with 32. I may be wrong...i just have been out of it for too long
SNSKreationz Thanks. I meant the decay rate. Incorporate that and it will make your analyzer the winner of the TH-cam analyzer wars. :) My hat is off to your creation. Awesome job. :D
after full time work, part time school and freelancing i only have time for friends and family. I have all intention of posting the code within a couple of days. if you think there is absolutely a need for a tutorial, please feel free to do one. the code took me 90% of the time on this project, so all of the hard work would be done.
sorry if it sounded like i was being a dick, I wasn't saying you need to make one I just was wondering why no one has, I mean if you know how to do something why wouldn't you share.(I'm not directing this at you)
heavydaays The code is posted and tested. Everything needed to do this project can be found online now. The adafruit tutorial for the matrix is linked in the arduino code description. As you see, I try to reply to every single comment because tutorials aren't my thing. Given the code, I would rate this project at a 2/10 difficulty so a tutorial would be overkill imo.
Wow, this looks great! Well done. Thanks for posting your code - it is very easy to read and gives me a huge head start in understanding the minim library and how it could be implemented for a project I've had in mind for a while. Great work, thanks again.
Youre welcome!
So this code would actually allow me to create a 256X64 led matrix. It's awesome! Thank you so much! and ofcourse keep up the good work.
Glad it worked :)
Thanks for the project info. I made my own using a 64x32 display (more compact [3mm pitch] than 2 of the 32x16), a Teensy 3.1 and a Smart Matrix Shield V3 for the Teensy. I also modified the code somewhat. My only issue is that it only works from my MAC at this point and I don't have a case/enclosure for it yet.
Where and how are you inputing your audio from? Are you using a Aux in jack ?
SNS Kreationz, Thank you, your project works very well, as the samples. I delay arming and understanding the code but I succeeded thanks to you. excellent projects your page. Thank you.
Great job... Just wish there were more examples/libraries out there for the non-AVR arduinos, like ESP8266 & STM32, which are so much faster. Faster means better frequency resolution while keeping loops/second high.
Soo soothing to watch !
It looks lots better in real life. Glad you like it
What did you use to make this and is there a tutorial/process on how to make this? (I am new to arduino/el;ectronics)
Awesome project, engineering and music \o/
this is awesome! i would love to have one of these at home!
Awesome good job :D This gotta be my next project
+SNSKreationz Did you use the instructions in the Adafruit datasheet for supplying the power to the LED matrix as well as connecting the matrix to the Arduino?
Yes adafruit has good instructions
I love it, where can I buy it, I mean the whole thing, the panel and the programs? is there any place in which i can get it? please let me know
Hi there. Just curious if this can be done with led strips instead of the matrix displays. Cheers
Hi can you tell me the parts required to make this display and a basic wiring diagram, cheers bud
I'd be interested in a PCB to build one of these too. I've recently saw something similar at the Maker Faire in SF and I want to build one.
I will be getting the PCBs soon. I dont have time to handle sales, but one of my friends will put it on his online store when they come in, I'll give you a link when its available.
Kudos for Infinity..
So true no one helps out with arduino much at all.
There too smart to help!
+Dale Whitmore Im definitely not smart. All the code and instructions are here for you to use. Not sure how much more I can help.
+SNSKreationz Sorry mate.
Stephen, maybe we can do a joint venture. You work on your end and I can try on my end. I was hoping to start on building a matrix first. With your trial and errors, do you find it best to build smaller matrix versus one larger one?
For instance, a single 32x128 versus eight 16x32s?
I noticed you wrote you purchased your matrix(s). I checked out the site you posted about, about $25/matrix.
Each comes with some device and can daisy-changed, but there dimensions(company states on there site) are not all the same. That there are variations in sizing.
I was you can point me in a direction that can help me get started and get more info. Most links online are people showing there stuff but not explaining.
Thanks a million.
I have no idea if a single 32x128 or eight x 16x32 will be easier. I know for sure an arduino can power a single 16 x 32 with more than 50% headroom with 8 bit colour. Other thing is that a teensy's max baud rate is significantly higher than arduino so it can be the "middle man" between computer and several arduinos. That is how i did the 32 x 96 matrix. I have new PCBs coming so the hardware is practically done.If you want to help with the programming that will be awesome. It is no secret what I am doing. It would be very similar to the code I posted on this vid.
Are your pubs custom design or you found the ones that tailor your needs?
If you found specific ones, what is the model and manufacturer so I can read about it.
they are custom
looks very cool...thumbz up
how much is this kit ready for stand alone use on a AV-Receiver pls? that would be great! ;)
Ive wanted to make exactly this for like two years. Id like to make the matrix itself too but Ive yet to see anything on making a 32x64 rgb matrix. I really want the sound visualization involved too >.>
Me encanta , impresionante amigo
hi, are you still active ?
i have some issues with this project, do you run the processing and arduino code at the same time ? if i try to run it at the same time it will not work because it is not possible to run 2 programs on the same port, so how did you do this ? pls help i need it for school
Is there any way to adjust the code to use the PC's current audio instead of having to use a line in device?
Hi! What does the kit includes? and how much does it costs? do you ship to mexico?
code is easy to read, nicely done! Shame arduino can't do all that FFT by itself. Nice project though.
This looks amazing! I want to make one of these Spectrum analyzers! I don't have a clue what parts it takes or how to build or program it but, it would be awesome. I could not find the kit. Please help
Thanks bro. No rush.
Could I contact you for the specific materials you used to make this? I would love to make this my summer project. Thanks!
Is it possible to construct a smaller version of this setup with less arduino devices and LED's? The description to the file in your stated you used two arduino devices. I'm specifically wondering if it's possible to construct an 8 band spectrum analyzer with an ArduinoUno with your code. Thanks!
yes it is 100% possible. i started with an 8x8 matrix actually. you will need to work on the arduino code from scratch basically and adjust the bands spacing in processing code.
I'll try my best. Thank you so much!!! XD
Hi Stephen, I am not familiar with writing code, but I am a quick learner. I did go to school for computer programming, therefore I can understand the logic of code. I was calculating the cost to custom build my own matrix and purchasing already made matrix and came to realize it would be more economical to buy several 32x16 matrix. Also, the amount of soldering 4096(128x32) LEDs would get me sick. And that is for just a left side for my project, a full project would be double. I will be a grandpa by the time I finish soldering all those leads.
Can you suggest some links in coding, chips that would best work for mentioned project?
Videos or reading material that will accelerate this creation?
i will make that project reasonably easy to undertake with the pcbs i expect to get in approx 3 weeks (if there is no stupid mistakes in my designing) with respect to hardware. as soon as i get those pcbs ill be trying to work on that scale of ~8-16 matrix for video playback. ill show you how i intend on making them work together and if you have any ideas you can help work on the code if you like. the hardest park will be the serial and i2c communication which you can learn easily online.
How did you calculate the required voltage and current needed for a custom project such as this one. I just bought an audio spectrum "kit" off of adafruit and was wondering how you calculated your voltage and current for both the arduino and the LED matrix...Assuming you are using an arduino
I get my voltages and currents from datasheets mostly.These particular 16 x 32 RGB panels use 5v and under 2 amps each. I did use two arduino nanos but they got power from the computer. Btw, can you link the adafruit product? I cannot find it on the site. Thank you.
SNSKreationz learn.adafruit.com/adafruit-microphone-amplifier-breakout
MrSurfer115 from what i see, as long as you supply your arduino uno with 7 - 12v in the dc input you should be ok. their specs say 2.4 - 5v. the dc input is regulated to 5v through the arduino and so the panel will get that 5v
Ya the transformer I got has multiple voltage settings and it supplies the correct current automatically according to the voltage. I just have to calculate the voltage for the arduino and the matrix which im guessing will be around the 7-12v range
I am trying in Arduino mega. but nothing to show in display.
Do you need 2 ardruinos for the one display and also is there any unit you could buy or make that would do the fft instead of using a computer or is it the ardruino doing the fft. sorry for posting on both your videos but this comment seems to be more active.
thanks ben
right now i use 1 arduino per matrix. you can definitely do fft with arduino, but the results are not as good as a pc.
Very nice video. I have a quick question I was hoping you could answer. I've built a very similar setup to yours utilizing your codes for Processor 2.0 and IDE and they work great. However, despite the panels being mounted in the upright position per the arrows on the rear PCB board, the analyzer is upside down. Any thoughts? Where in IDE would I adjust the code to flip the layout? Thanks and again, great video!
it is upside down to make it easy. in "lightcolumns" function, you need to change the for loop values and in main loop change the lightcolumns(31, led1); to the opposite column e.g. lightcolumns(31, led32); instead
SNSKreationz
Thanks for the quick reply. Basically what I need to do is rotate both displays 180 degrees. So presently, the EQ works form top to bottom (upside down); bottom being peaking(Red). I need the whole display to work from bottom to top as per the "UP" designation on the rear of the panels. If it would help, I could send some pictures to aid in the process.
Ryan Bailly
i know exactly what you are talking about. you just need to reverse the loop values in lightcolumns() to flip vertical and reverse led1 to led32 to flip horizontal. if you cant do it let me know and ill do it when i got some time.
Can I do this without processing? If ATmega do the operations and then put on matrix display?
Hello Stephen. That is great to hear. Maybe we are twins? Do u have a link for your previous project? Do u have any pointers to share for me to start learning the basics of construction & coding, as well as components normally. Nothing specific since u r pressed for time.
i have no idea how i replied to you with that account. ill start by rebuilding the 32 x 96 which can be done as soon as i get some more rgb matrix. ill share the project on here
does anybody know if these panals are chained together ? if so where does the second arduino get plugged in, arduino to first panal input then output of first panal to second panal input only leaves the output of the second panal. If there not chained and both arduinos are connected to the inputs of both panals surely they would just display the same thing, or are the arduinos connected together in some way, please help
which librarys did you use. it give's a problem at import processing.serial.*;
how much are the kits and how long is the delay ?
Looks good. How do I get my hands on one?
where can I buy one of these, and do you think it will hold up to bass... extreme bass
I love this project!! I would love to know which parts you used to make this
Hey, is it also possible with the Raspberry Pi or why do you have chosen the Arduino? If so, do I need also two devices?
I have replaced the pc with a udoo for processing. however I have problems with the serial comm. I have not tried with raspberry pi, but it should be able to it too. I chose arduino because it is what was the first thing i grabbed.
add - some averaging like 2x or 3x and hans window filter and it will look awesome !
you can take the code and modify it however you like. those filters are no problem to add. the code has a lot of overhead.
Pretty cool :)
Was it hard to go from 1 led matrix to 2 led matrix ?
I've the same led matrix as you have
it is very easy to go from 1 to 2. you just need to add more bands and devices in the processing software and 2x the hardware. the arduino code is exactly the same.
cool
When do you guys expect your website will be updated with your kits?
I've wanted to make a spectrum analyzer for years but still don't know how to process audio signals too well. Thanks
James Donaldson I dont think this is being sold anymore. It is easy to diy tho
SNSKreationz
Hey, I checked the website as well as Adafruit's forums and I couldn't find much on this project. I am new to arduinos and I wanted to make this my big attempt to make something. Do you know where I could get some DIY info to tackle this project?
You're already at one of the biggest tutorial libraries on earth. Type what you're looking for into the search box, or even better try google it!
"how to build a DIY arduino spectrum analyzer" should get you there.
James Donaldson
I've been doing that for days and I can't seem to find a project that keeps it all contained on just the arduino and can handle more than 7 frequency bands. I'm struggling to find the right hardware to deal with something like a 16 band spectrum (which would be pushing it for an arduino from what I can tell).
***** This may possibly help you in some way, from what I can tell it has about 16 bands - though it does require a computer for signal processing :-/.
www.instructables.com/id/Arduino-Processing-Audio-Spectrum-Analyzer/
Where is the audio signal going into the arduino from? I'm confused about what pin (pins?) to use.
it doesn't
Hi SNSKreationz, good work! What software do you use to analize sound and to send fft to the arduino?
Hello. Awesome creation. I was wondering if you had the kits ready for sale or maybe a completed item? Thanks, Jeff Bashor
I do not sell kits for this. I will, however, have PCBs to get rid of the wiring at a low cost in about a month. the other items can be found on sparkfun, adafruit and even ebay.
And how you can get the scheme of this device and the program code
In your code you used 2 ports for each rgb matrix, how does this work? I thought you would have one port, send the data to the Arduino using it and then output to the matrices. Could you outline how I can choose the correct ports?? Thanks :)
I used 1 port per rgb matrix. basically choose the ports your arduinos are connected to
Thanks for the reply, sorted now and got it all working!! Cheers :)
Jonny Schmidt awesome!
What do we need besides the code? How can i connect my led strip to the arduino uno?
Thanks you.
this is a RGB panel. the code can work with a RGB string like in my waterfall spectrum analyzer video if you like. to get a full 32 band like this would take a bit of programming work, but can be done using the code provided as a reference.
SNSKreationz thanks, do i need the MSGEQ chip?
elfamosisimoJON no, the code that runs on processing on a pc is like the alternative for that chip.
SNSKreationz cool! one more thing, do i need any kind of arduino drivers or processing for my rgb strip? i was researching a little and i thinks there is different models for strips. Any idea? Greetings!
elfamosisimoJON you can use any arduino you like. do you have the rgb strip yet?
Awesome work Stephen! Did you get the PCBs yet? I'm gonna build my own matrix using WS2812b strips and would love to integrate a spectrum analyzer like yours. I want something bigger for when I am dj-ing. Thanks!
yes the pcbs are done. waiting for a couple more parts to make the kits. they should have arrived already, but i work far from my house and wont be there until the 30th....which is a long weekend.
the ws2812b strips is a cool project. i wanted to give that a try
SNSKreationz
My 2812b matrix is done and is awesome. But I like you spectrum analyzer the best out of all the others. Are you willing to share the code? thank!
Kurt Woolford
Sorry, I found your code on GitHub: Real-Time-RGB-Matrix-Spectrum-Analyzer. But I think this is written for 2801 strips? Not sure but I see CLK "clock" variables in the code. The 2812 does not have CLK anymore, just DAT for "data". Any ideas on how to modify the code appropriately. Thanks so much!
Kurt Woolford i honestly cannot remember because that video was taken long before it was posted. ill check up on that. it should be easy to convert tho.
Fantastic!
How can i use it with audio from a home stereo system?
How much it cost?
Awesome.
Cool Project, Have you a link with schematics? Thanks for your work. :)
Vircus1 the adafruit website has the schematic
SNSKreationz Thanks, you can give me the link of schematic because i don't found on website.
thnks :)
Cool project! I'm building one myself, using a 16x64 Red/Green matrix I picked up. I overestimated the documentation I got with it (aka, none). I haven't got it working yet... Do you have any documentation or logic analyzer traces you could share? I've searched the net, but haven't had much luck. My interface pins are likely similar to yours (GND, EN, R1/2 and G1/2, LA/LB/LC/LD, and LT SK) I'm guessing at the timing and polarity of each... Any tips would be appreciated. Thanks!
Awesome any build video on it ? Thanks
Sir
Can you tell me how can I use this for 16x32 rgb board Adafruit
How can I RUN this without PC mean without executing .pde file. I need stand alone.
Input from my mobile directly. from Stereo pin.
Hi Stephen, I am back.
Was on vacation with family.
What is the status on your PCBs?
i have the pcbs and they work properly. waiting for a proper power supply for over a month now, hope it arrives soon.
I purchased an arduino red kit, been plaing with it wIting to hear from you. Similare to c++ and vbscribt
yea the programming is very simple. the communication for having multiple led panels is what gave me the most problems.
How are the PCBs going/turned out? Are they what you expected? I found online a company that made rgb matrix embedded on a PCB. with I believe three wire control and the ability to daisy-chain them. www.oharap.com each individual led can be controlled independently. It's the RGB-123 Kickstarter
Joshua A. Guerra the website you posted dont work. the pcbs are working without any issues. can you repost the link?
This is amazing! I will be in contact with you with some questions for a particular application I have for this...
heasoundsystems Hi unfortunately I do not do freelancing for arduino projects. If you do need support I will be glad to put my two cents in.
I would like to do a good list of materials you would like to do.
good job by the way!
can you modify for the parola library by any chance!
+Dale Whitmore I will look at it. I have not used arduino in a year so might be tough to get back into
Amazing! This is pretty much exactly what I wanted to do as soon as I saw those RGB LED matrix panels on adafruit. Great minds think alike! I'm curious if you are willing to share your plans or sell them assembled? I think if you were able to package this in a standard Receiver/DVD player sized enclosure you could sell thousands of them for hundreds of dollars each.
yes i bought it specifically for this lol. The plans for this is nothing out of the ordinary - Arduino, panel, pc, and some wire with instructions all on adafruit site. I do not really care to sell them, but if anyone wants one, I wont mind selling. I already have PCBs in fab for these panels which would be a cheaper, smaller (and better for my purposes) than the nootropic backpack. I would sell those PCBs in the future if there is interest.
SNSKreationz Yeah I guess the Arduino code is the only part that I don't have access to. Are you using the source code from Paul Bishop posted a few years ago? I wonder if any company out there has a 64 band spectrum analyzer IC to help simplify the project. I have only seen 7 bands ICs.
Matt Hessler
I am using the adafruit library for the arduino code, paricularly the drawpixel function. Processing does the actual analyzing on the pc using the minim library. besides these libraries, i did not use any other code. If i get some time between other projects ill clean up and post the code
Sounds good man. Thanks again!
You are awesome..thanks !
Darren Miles, I cannot respond to your comment. I would recommend that you start with the adafruit library
SNSKreationz Can you update your github libraries / post the stuff that was linked to your site which is apparently down? There's literally no explanation on your first ws2811 library and it's unbelievably infuriating to have to change / google your name to find you / your videos
Brian Kinney I do not have a ws2811 library. If you please explain your problem i might be able to help
SNSKreationz can you sell that above to me? Thanks in advance
@ noel kim i cannot reply to you for some reason. I am working on code to do that right now. i have no idea when it will be finished but i have something working now, just not anywhere good as analyzing the mic input.
guven hun can you give me more information? if you follow all the instructions and download all the libraries this would work. the least you could do was to try audio jack also and see if there was a difference.
guven hun alternatively, you can give your equipment to someone else
guven hun you wont even help yourself, so how can others help? YOU ALONE should not do anything with arduino if you expect everything to be given to you on a silver platter. i am no expert. everything I did here i worked hard to figure it out by myself. I did not go whining on youtube. thank you for wasting a few seconds of my time again.
nice build...
Good mornin. I really liked your video. I was online looking for a way to build an audio spectrum analyzer, similar to yours but on a grander scale. I am almost done building my man cave in garage(5 feet off the ground-we have tall ceiling in garage, about 22 feet tall). I have big plans for my room, including several infinity mirrors on ceiling as well as other rgb led lighting. Anyways, I would like to build a 32x128 model, one for right signal and one for left signal. It's just one but reversed to give the illusion of two signals. Read your comments on you building/selling a board. Can you point me in the right direction to get this accomplished? I would also like the option to code it for verbiage and designs. This will be over my computer station with six monitors. Also, I would like to connect it to a sound sensor so it can react to it via sound controller.
Thanks a millio.
i have previously done a 32 x 96 spectrum analyzer. 32 x 128 should be possible if there is no communication limit problems. What you are planning on doing i am already working on with respect to having "video playback" but i am waiting on pcbs for those. i just have 50+ hrs work/week then its summer so i make the most out of my weekends, no promises, but ill have this done in winter and ill share code and hardware list.
Could you pls post a link to the kit if you are ready to sell them?
I would realy like to have one^^
everything is ordered. as long as the pcbs work as they are supposed to, ill put up a link. hopefully within 2 weeks. thx.
I would buy your whole kit :D
Can be use on 32x64 rgb?
Are you currently selling kits? If so, how much?
Can you tell me, how much is one kit?
Are you using a mic input for getLineIn? If so, what mic are you using?
Is there any way to change the input that minim uses?
Yes, you would need to change the computers active audio input source. This can be done in windows via control panel under "hardware and sound". You can also change the active audio input by right clicking the speaker icon in the windows systray and selecting recording devices.
Alright thanks a lot for that :)
I already know how to change the default audio input on Windows, but I was just wondering if there was any way to change it within Processing.
Unfortunately, minim only has the ability to monitor the computers active audio input source. Are you trying to use the computers audio output as the minim audio input source?
My intention is to use Processing to send FFT data to an Arduino. Initially, I tried to find a way to use the computer's audio output as the minim input, but I gave up on that.
Instead, I decided to connect the headphone jack on my phone to my computer's microphone input, and 'listen' to the mic through my computer's speakers. This solution works pretty well, but isn't as elegant as I'd hoped.
Is there any other method to use my computer's audio output as an input to Processing? A different library perhaps?
Stephen, everytime i post my email or skype name, it gets deleted the next day. I searched for your name but there are a large number with your same name. Maybe a hint to narrow it down.
price? I may be interested. and how much it would cost the materials to do it?
Ohh and does it have to be coded for every song?
Pisthing it will work for any song and it is real time.
for this setup it cost $80 for both 16 x 32 matrix, $60 for 2 arduino uno, then wire and breadboard is probably another $20. shipping was extra when i bought these parts. I never thought there would be this much interest in this and i recently decided to make a PCB to make this easy and buy these matrix wholesale to get them cheaper to anyone who is interested. It will use the arduino nano and will cost around $90 max (without soldering and shipping) for this setup if all goes well.
hey man what pins are the inputs? could you make a little readme.txt ?
learn.adafruit.com/32x16-32x32-rgb-led-matrix/wiring-the-16x32-matrix. that is all the information you will need on wiring hopefully
so that has the input for audio ?
Pixelated Thomas no. it is through a computer for the audio. an arduino is connected to a computer which does the fft. if you read through more comments and the example code most of the information you need is there.
:/
ok man i wish there was a readme though. but thanks man
SNSKreationz oh btw the comments only go to six months and i dont see an answer :(
can you do this with raspberry? i want to make one with 32 or 16 band
i do not know about raspberry, but i have this working with a UDOO quad. i am guessing it would be similar
Your code??
how do you get a spectrum from. if serial read = M and '
' wtf
+Dale Whitmore The data is between M and
How about wiring diagram,
i`ve read every single comment, open every single link, and the only thing i dont get is how the signal goes in the arduino, i know tha is a software the one that conver the signal, but i dont understand how the arduino take that signal and shows in the matrxi.
can any one help me plz i am very intrested on doing something like this.
thks
must be via the analog input
might help: interface.khm.de/index.php/lab/interfaces-advanced/arduino-realtime-audio-processing/
@israel ordonez The signal goes into the Arduino through the Serial cable from the computer. The program Processing analyzes the sound input, converts it into Serial code, and sends it to the Arduino, which in turn displays the appropriate levels of light on the RGB matrix based on the code it is already running and the input it is receiving from the computer.
Thank you in advance .
wow it's so amazing. LiKe!
bom dia voce vende um kit desse analizadora? thankyou
❤️
Impressionante, parabéns!
Not seeing spectrum analyzer. The Bass and drum bass came on and the low end was unresponsive yet was showing activity when there were no bass notes. The whole thing looks random. Now, the question is what app or code drives it?
Maybe this code could be adapted to 16x2 lcd?
MrZigulinis the 16x2 lcd may work
You still have some of these for sale..
Auloon Korqa Unfortunately I do not have time to sell, or support this product. I think that I will make a list of parts in description
were to buy
Nice, and thanks! For me the display was reverse, we were able to modify you code is it alright now for my display I was using code for 16X32 spectrum analyzer found on instructables ( But it was not as smooth as yours and it had the problem with higher frequency being low on the display), which is display row and column the otehr way ( as adafruit libary example also does). My display is fix on a display case So I couldn't reverse it physically, but now it work . I like you changing colors.
Since I have only one display I cut processing code so it does not send anything to another serial. I've cut the "string xaa" to "string xfff" too. But when I reduced other parameter to 32 instead of 64 i get this error for the line 80: "ArrayIndexOutofBoundsexception 32". The line code 80 is : freq_height[32] = (fft.calcAvg((float) 20, (float) 60)); the "32" is originally 64. Also what is the use of this line? I get it does fft average but of what. if I put it as a comment, the code still work. It's not a big problem, the program work at 64, if I cut everything that is serial2, it's just that processing calculated ftt for 64 frequency but use the first 32, it's just not optimal.
I don,t know if you still answer. But still great work. I search a lot and it's best Spectrum analyser for adafruit display and Arduino I've found. Work find with processing3.0 now minim library is supported.
do you still get that problem? I believe you need 0 - 31 so it would not know what to do with 32. I may be wrong...i just have been out of it for too long
Where are the logs?
Do you mean logs for the code? BTW u have a nice spectrum analyzer on your channel.
SNSKreationz Thanks. I meant the decay rate. Incorporate that and it will make your analyzer the winner of the TH-cam analyzer wars. :)
My hat is off to your creation. Awesome job. :D
Awesome! Price??
Hi, can you please msg me your email address?
First of all: that is a realy nice project! Looks realy cool!
But that code dude! What is this? ^^
can I ask, why is it that there are no tutorials at all on youtube of how to do this, I mean with the code and all. Its just a little bit bs.
after full time work, part time school and freelancing i only have time for friends and family. I have all intention of posting the code within a couple of days. if you think there is absolutely a need for a tutorial, please feel free to do one. the code took me 90% of the time on this project, so all of the hard work would be done.
sorry if it sounded like i was being a dick, I wasn't saying you need to make one I just was wondering why no one has, I mean if you know how to do something why wouldn't you share.(I'm not directing this at you)
heavydaays The code is posted and tested. Everything needed to do this project can be found online now. The adafruit tutorial for the matrix is linked in the arduino code description. As you see, I try to reply to every single comment because tutorials aren't my thing. Given the code, I would rate this project at a 2/10 difficulty so a tutorial would be overkill imo.
And you can connect the scheme please