Thanks everyone who entered the contest! Brandon Xicon was the winner, scroll down to see what he said! Thanks for all the support! I started this channel for fun and it's really starting to grow!
I was looking for a small audio analyzer for my project for my Christmas tree and here it goes easy and cheap. I looked in the internet all of them use a long FFT-codes which is lot of work for small project thank you broo
Im thinking a smart mirror build would be cool, or if you are focused more on lights, a table that you can play 8 bit pong on, like have the board that displays your players location and the ball, and then on each side some buttons to change position of your player
This might be a lot of work but you should do optic fiber star with meteor shower engine on your ceiling. With all the lighting you have, it would look great, and you explain things really well in all your videos. Keep up the good work!
I’ve been thinking of something like this for a while. I’ve seen some great videos of people making these but they always seem like a ton of work. Maybe I could make something that’s a stand alone unit that attaches to the ceiling that would be easier to follow along with. Thanks for the idea!
The sound sensor you linked only has a digital output and can only detect wether the sound is above a certain threshold. So how come you plug it into A0 and how can you detect volume of the sound?
I never checked the data sheet for those mics but that explains a lot of headache. I spent hours trying to figure out why I was only getting 0 or 1023 😂
I think I am having trouble with the code. When I use the color palette everything works fine but when I use the code supplied in the link, it either has a few stationary lights or no lights at all. Any suggestions?
played around with the potentimeter and now its around 520 and make small movements when i clap my hands and such. But none of my LEDs turn on. Im using your exact sketch
Different microphone modules output different sensitivities. It’s been a while since I wrote the sketch but it’s listening for a specific range from the microphone (0 - 1023 I think?). You should use a sketch that reads analog input and prints it to the serial monitor so you can adjust the mic to hit that range. Alternatively, you can change the mapping function to map to your range instead. I’m sure you already did this but run a fastLED example to make sure your LEDs are wired correctly. Hope this helps, thanks for trying one of my projects!
@@Tech-Random Thanks for your response. Yeah they're wired correctly. I've made a 24x24 gif display, but wanted to add this as a mode after stumbling across your video because it looked so cool. I'll give it a go but seems the range I'm getting is so tiny.. like 519 when quiet and 522 when clapping. Maybe I'll just buy the same sensor you're using
Do you know if there is a way to turn up the mic sensitivity on the Arduino board for the LED visualizer? Also, is this a full spectrum analyzer/visualizer?
The microphone module has a variable resistor to change sensitivity with a small screwdriver. This only has 8 bands and from my testing it covers 500Hz to 2kHz. With some tweaking the code can go all the way up to 20kHz though. There are some other really good examples of this online if you search for Arduino FFT
You’d have to change the code to start displaying from the correct location. The code assumes your LEDs are set up in a specific pattern so any other configuration will have to be changed in the code.
Hey! I like your project. I was wondering if I was able to replace the microphone with a jack but I'm not sure they work on the same voltages. What's your suggestion?
The arduino can only handle about .75 amps output so you’ll definitely want to use a power supply for anything larger than this. Honestly if I were to redo this project I would probably use a dedicated power supply to make sure the arduino lasts longer.
Is it receptive? Doesn't it feel "laggy" because of all the delay from sensor to processing to displaying? I also plan to implement a visualizer using a mic because I dont wanna make an app or something but idk if its a good idea.
Lag is certainly something you should keep in mind when writing the code. Generally, you need less than 100 ms of latency so it feels responsive and not laggy. Microcontrollers are surprisingly fast at calculations so it’s pretty easy to stay within that time frame. I just finished my college capstone project and it has responsive sound reactive animations like this does while also listening for updates from a web server
Hi, i've found you project really interesting. I need help for 1 changement to the code: Actually you are using 8 led for each string, with each led representing a different frequency. If i'd like to Transposed the effect (so each string has leds of the same color) what i should do?
I have it set to keep the first row on because I prefer the way it looks. I was looking over the code and I’m not sure there’s a way to change it easily but you can play around with the Intensity array to try and get it to go to zero.
Also I subscribed I think you should make a LED board like that but you could make it look like people, take a photo of them and it wold appear on the Led board👍👍👍
Can you try to do a video on a mode for your Led wall that shows different 8x8 bitmaps when tiles are pressed. Like 8x8 mario, pacman, minecraft blocks, etc...
I think you should attempt some type of scoreboard! You can use it to keep score when playing pong with the roommates! Keep putting together the great content
@@Tech-Random I see. Well another question - Does the led only light up on low frequencies OR through out the frequency spectrum, since in the video I felt it reacted only to bass frequencies
Good observation. In the video it’s only reacting to low frequencies but you can adjust the range of frequencies by changing the sample rate or the number of samples being taken. In the video I’m showing the 8 lower frequencies stored in the vreal array.
Nice!! As I mentioned in another comment, I'm very novice when it comes to Arduino programming. Can you give any general guidance as to what in your code to modify to change the rainbow display to have the columns be alternating specific colors of only two colors? (e.g., columns blue, white, blue, white, blue, white, etc.)?
To get the rainbow effect I have an integer for color that gets incremented after each bar is displayed. Instead of incrementing each bar you could have a Boolean value and an if statement. For example: bool colorValue = 1; if colorValue == 1 color = 115 ; else color = 200; colorValue = !colorValue
I notice you have a usb cord running out of the board -- where does it go? Also, can this be powered by a power supply (powers the board, which, in turn powers the lights)? I'm going to attempt this project but use 3D printed parts and no wood.
The Arduino Mega can’t be powered by 5v unless it’s going through the USB port. Originally I just used a power bank for this but I ended up modifying a power cable and soldering it to the 5v from the power supply that powers the LEDs. To power an Arduino Mega via the Vin pin you’ll need to supply 7.5-12V which you could do with a voltage step up circuit but it would need more current.
@@Tech-Random 7.5 to 12 volts or amps? Like for your LED panels, you powered your light strips with a 5v 10a power supply, then powered the Arduino board separately? Can that be done here? Two power supplies (maybe a little overkill)?
Oh my god I thought this was a comment on my LED wall video lol. An uno is perfect for this project and you can power it with 5v. The usb cable in this video is connected to a power bank because I didn’t buy a power supply. A single 5v supply would be perfect for this project. Sorry for the misleading information, hope this helps!!!
I have not but there’s a better tutorial by someone else that does. Search for “ESP32 spectrum analyzer” by Scott Marley and you’ll see what this project *should* look like
@@Tech-Random Awesome, thanks! I got your code to work just now with my project, but I'm wanting to double the X and Y axes so that it's larger, but I can't get it to work. Any ideas?
@@Tech-Random Tried that and when I change them to 16 they stop working altogether. I've tried changing it with the NUM_LEDS value too and it doesn't do anything. Thank you so much btw for responding! Edit: I think I've figured it out. I just doubled everything. 8x8 to 16x16. But 64 doubled is 128, which is not 16x16. That's what I think is wrong.
At the top of the code there are some values for the X resolution and Y resolution. Changing those and increasing samples to 128 can allow for a larger grid
@@Tech-Random I was making fun of your board "What project should I do next?" But that's cool. Touch screens are still too expensive. I have an ole Kindle I been dreaming about using with arduino.
@@wjgiles50 Very kind but I want to try and build my own large scale touchscreen using IR light. I'm not sure how much work this will be and may end up caving and buying one off amazon though. I actually just got another suggestion that I'm going to build first so this build will probably be around the end of august!
I like this sound activated board. Looks great. For you next project I think you should do a round sound activated infinity mirror end table. Get the table from Facebook market place or one of the free give a way site. That would look good. Hope to hear my name called for the winner. Thanks again and keep up the great videos. You got this!!
Make a WIRELESS VU meter like a pole.(At least 2 poles ) It will be awesome because you can place it where ever you want. Also can you do some projects with esp32/82666 !!! Btw your contents are awesome bro. Keep it up !! Subscribed ❤️💪 Much love from Sri Lanka 🇱🇰 ❤️
@@Tech-Random Ok, thanks. But even so, you should be aware that the Arduino has a max current output of only 40 mA per pin. I'd highly recommend an external power supply.
I'm surprised how it did ended up. How about you create video comparing broke Builds with legit one.for example Build nanoleaf with lowest budget possible but keep the good look🤦♂️ and then go crazy on creating one with all good stuff u can😁 I think it would become popular topic for your channel ✌
Did anyone ever answer the question? The next project you are doing is updating your popular LED Wall.... though technically, you did a fire pit. EDIT: nevermind, I see your note that someone did answer -- I thought you gave the answer when you said you were updating your wall. :D
Shh we don’t talk about that.... What’s actually happening is a miss use of the FFT arduino library. When I made this video I didn’t really understand how a Fourier transform worked so it’s only actually measuring the lows (20-300 Hz)
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Thanks everyone who entered the contest! Brandon Xicon was the winner, scroll down to see what he said!
Thanks for all the support! I started this channel for fun and it's really starting to grow!
I was looking for a small audio analyzer for my project for my Christmas tree and here it goes easy and cheap.
I looked in the internet all of them use a long FFT-codes which is lot of work for small project
thank you broo
Glad I could help!
ws2812b for life!
Im thinking a smart mirror build would be cool, or if you are focused more on lights, a table that you can play 8 bit pong on, like have the board that displays your players location and the ball, and then on each side some buttons to change position of your player
This might be a lot of work but you should do optic fiber star with meteor shower engine on your ceiling. With all the lighting you have, it would look great, and you explain things really well in all your videos. Keep up the good work!
I’ve been thinking of something like this for a while. I’ve seen some great videos of people making these but they always seem like a ton of work. Maybe I could make something that’s a stand alone unit that attaches to the ceiling that would be easier to follow along with. Thanks for the idea!
@@Tech-Random oooo now I really hope you do this project soon haha. And no problem! 👍
Loving the aviator safety glasses LOL
Gotta stay cool while staying safe
The sound sensor you linked only has a digital output and can only detect wether the sound is above a certain threshold. So how come you plug it into A0 and how can you detect volume of the sound?
I never checked the data sheet for those mics but that explains a lot of headache. I spent hours trying to figure out why I was only getting 0 or 1023 😂
I was watching 2/3 yours videos and they are awesome! And how only 450 subscribers?!? Complimenti 🇮🇹
Thanks for the support! I have some big projects coming up so hopefully the sub count will go up ;)
They will going up at 100%✌🏻 i can't wait to see the new videos!
I think I am having trouble with the code. When I use the color palette everything works fine but when I use the code supplied in the link, it either has a few stationary lights or no lights at all. Any suggestions?
What kinds of values are you supposed to get from the analog read?. Mine seems to just hoover around 32 no matter what noise I make. Using KY-038
played around with the potentimeter and now its around 520 and make small movements when i clap my hands and such. But none of my LEDs turn on. Im using your exact sketch
Different microphone modules output different sensitivities. It’s been a while since I wrote the sketch but it’s listening for a specific range from the microphone (0 - 1023 I think?). You should use a sketch that reads analog input and prints it to the serial monitor so you can adjust the mic to hit that range. Alternatively, you can change the mapping function to map to your range instead. I’m sure you already did this but run a fastLED example to make sure your LEDs are wired correctly. Hope this helps, thanks for trying one of my projects!
@@Tech-Random Thanks for your response. Yeah they're wired correctly. I've made a 24x24 gif display, but wanted to add this as a mode after stumbling across your video because it looked so cool. I'll give it a go but seems the range I'm getting is so tiny.. like 519 when quiet and 522 when clapping. Maybe I'll just buy the same sensor you're using
Very cool project, in addition to an external powersupply what values so i need to tweak on the code in order to use more LEDs? Thanks
Do you know if there is a way to turn up the mic sensitivity on the Arduino board for the LED visualizer? Also, is this a full spectrum analyzer/visualizer?
The microphone module has a variable resistor to change sensitivity with a small screwdriver. This only has 8 bands and from my testing it covers 500Hz to 2kHz. With some tweaking the code can go all the way up to 20kHz though. There are some other really good examples of this online if you search for Arduino FFT
I don't quite understand how you represent the x-axis as the different frequency
does the left side of the visualizer visualize bass and the right side visualize trebble?
Yes more or less. Each bar represents a different frequency and you can play around with the values to get more range
do you have to use adresseble LED strips or can you use what ever. and if what do i have to change?
my display backwards. how to fix it.thank
You’d have to change the code to start displaying from the correct location. The code assumes your LEDs are set up in a specific pattern so any other configuration will have to be changed in the code.
@@Tech-Random please show me that place. I'm an amateur.thanks
Hi, have you figured out how to fix the pattern?
Hey! I like your project. I was wondering if I was able to replace the microphone with a jack but I'm not sure they work on the same voltages. What's your suggestion?
Thanks Chris working great. do you have a later version with other modes from pin 3 button?
is there a limit to how many LEDs can be handled by the Arduino? Was looking to make a larger version with more LEDS/m
The arduino can only handle about .75 amps output so you’ll definitely want to use a power supply for anything larger than this. Honestly if I were to redo this project I would probably use a dedicated power supply to make sure the arduino lasts longer.
Hi! Thank you for this code, can you help me how to turn off the sepentine pattern for led matrix?
Is it receptive? Doesn't it feel "laggy" because of all the delay from sensor to processing to displaying? I also plan to implement a visualizer using a mic because I dont wanna make an app or something but idk if its a good idea.
Lag is certainly something you should keep in mind when writing the code. Generally, you need less than 100 ms of latency so it feels responsive and not laggy. Microcontrollers are surprisingly fast at calculations so it’s pretty easy to stay within that time frame. I just finished my college capstone project and it has responsive sound reactive animations like this does while also listening for updates from a web server
Hi, i've found you project really interesting. I need help for 1 changement to the code: Actually you are using 8 led for each string, with each led representing a different frequency. If i'd like to Transposed the effect (so each string has leds of the same color) what i should do?
Hey thanks for sharing before, I am using your code , why the first row is always on when there is no sound at all? Can you explain
I have it set to keep the first row on because I prefer the way it looks. I was looking over the code and I’m not sure there’s a way to change it easily but you can play around with the Intensity array to try and get it to go to zero.
Also I subscribed I think you should make a LED board like that but you could make it look like people, take a photo of them and it wold appear on the Led board👍👍👍
okay, but WHAT DID YOU DO WITH THE RESISTORS? WHY DID THEY DISAPPEAR?
Can you try to do a video on a mode for your Led wall that shows different 8x8 bitmaps when tiles are pressed. Like 8x8 mario, pacman, minecraft blocks, etc...
I think you should attempt some type of scoreboard! You can use it to keep score when playing pong with the roommates! Keep putting together the great content
Would have been nice to show the Adruino setup as well, which i guess many here might want to know
The setup is pretty simple. Just connect the LEDs to any digital pin and connect the mic to any analog pin.
@@Tech-Random I see. Well another question - Does the led only light up on low frequencies OR through out the frequency spectrum, since in the video I felt it reacted only to bass frequencies
Good observation. In the video it’s only reacting to low frequencies but you can adjust the range of frequencies by changing the sample rate or the number of samples being taken. In the video I’m showing the 8 lower frequencies stored in the vreal array.
@@Tech-Random Oh i see. Thanks for explaining
Nice!! As I mentioned in another comment, I'm very novice when it comes to Arduino programming. Can you give any general guidance as to what in your code to modify to change the rainbow display to have the columns be alternating specific colors of only two colors? (e.g., columns blue, white, blue, white, blue, white, etc.)?
To get the rainbow effect I have an integer for color that gets incremented after each bar is displayed. Instead of incrementing each bar you could have a Boolean value and an if statement. For example: bool colorValue = 1; if colorValue == 1 color = 115 ; else color = 200; colorValue = !colorValue
Hi brother; can we use line in functionality instead of mic input in this sketch by any how?
Thanks a lot man ❤
I have tried it on uno but it seems like it kinda lags for me when I play any music. Idk what's the problem with my Arduino
I notice you have a usb cord running out of the board -- where does it go? Also, can this be powered by a power supply (powers the board, which, in turn powers the lights)?
I'm going to attempt this project but use 3D printed parts and no wood.
The Arduino Mega can’t be powered by 5v unless it’s going through the USB port. Originally I just used a power bank for this but I ended up modifying a power cable and soldering it to the 5v from the power supply that powers the LEDs. To power an Arduino Mega via the Vin pin you’ll need to supply 7.5-12V which you could do with a voltage step up circuit but it would need more current.
@@Tech-Random 7.5 to 12 volts or amps? Like for your LED panels, you powered your light strips with a 5v 10a power supply, then powered the Arduino board separately? Can that be done here? Two power supplies (maybe a little overkill)?
Two power supplies would work great! 7.5 to 12 volts for the arduino. Just be sure to connect all the grounds together
@@Tech-Random Would you recommend using the Arduino mega 2560 over the Uno you used in this video? Also, thank you for your responses!
Oh my god I thought this was a comment on my LED wall video lol. An uno is perfect for this project and you can power it with 5v. The usb cable in this video is connected to a power bank because I didn’t buy a power supply. A single 5v supply would be perfect for this project. Sorry for the misleading information, hope this helps!!!
Dang you have more subs than me in a couple months GOOD JOB DUDE
This is Keaton btw
Thanks for the support! Hope your channel grows too!
Have you by chance updated the code to work with a larger frequency range?
I have not but there’s a better tutorial by someone else that does. Search for “ESP32 spectrum analyzer” by Scott Marley and you’ll see what this project *should* look like
@@Tech-Random Awesome, thanks! I got your code to work just now with my project, but I'm wanting to double the X and Y axes so that it's larger, but I can't get it to work. Any ideas?
I did everything in terms of xres and yres so changing the values of these at the top of the code where it says #Define should work
@@Tech-Random Tried that and when I change them to 16 they stop working altogether. I've tried changing it with the NUM_LEDS value too and it doesn't do anything. Thank you so much btw for responding!
Edit: I think I've figured it out. I just doubled everything. 8x8 to 16x16. But 64 doubled is 128, which is not 16x16. That's what I think is wrong.
Let me know if that’s working! That’s what I was going to suggest
Nice! - An infinity mirror with programable LEDs would be great for a bathroom
Hi, how would one change the code for a different size of matrix?
At the top of the code there are some values for the X resolution and Y resolution. Changing those and increasing samples to 128 can allow for a larger grid
Well done, again. Keep up the good work. Love your vids. So what will your next project be?
I haven’t decided yet but I think I’m going to try something with a diy touch screen.
@@Tech-Random I was making fun of your board "What project should I do next?" But that's cool. Touch screens are still too expensive. I have an ole Kindle I been dreaming about using with arduino.
How big a touch screen do you want to use. I would send y0u a kindle to use.
@@wjgiles50 Very kind but I want to try and build my own large scale touchscreen using IR light. I'm not sure how much work this will be and may end up caving and buying one off amazon though. I actually just got another suggestion that I'm going to build first so this build will probably be around the end of august!
Good video I can't wait to see more
I like this sound activated board. Looks great. For you next project I think you should do a round sound activated infinity mirror end table. Get the table from Facebook market place or one of the free give a way site. That would look good. Hope to hear my name called for the winner. Thanks again and keep up the great videos. You got this!!
Make a WIRELESS VU meter like a pole.(At least 2 poles ) It will be awesome because you can place it where ever you want. Also can you do some projects with esp32/82666 !!! Btw your contents are awesome bro. Keep it up !! Subscribed ❤️💪 Much love from Sri Lanka 🇱🇰 ❤️
Would a Nano work in place of the Uno?
Yes! I only used an uno for this because elegoo sent it to me. The clock speed might not be the same so your bars might move to different frequencies
Im a new subscriber.
You should make a smart mirror or a app controlled rgb display to individually select each light.
amazing video!
Are you powering 64 LEDs just with an Arduino UNO?
Yeah haha. The code caps each LED at 30% brightness so 64 * 0.5 * 0.3 is less than the 1 amp the arduino can output
@@Tech-Random Ok, thanks.
But even so, you should be aware that the Arduino has a max current output of only 40 mA per pin. I'd highly recommend an external power supply.
For some reason I thought each pin could do a full amp lol. Thanks for the tip!
I'm surprised how it did ended up. How about you create video comparing broke Builds with legit one.for example Build nanoleaf with lowest budget possible but keep the good look🤦♂️ and then go crazy on creating one with all good stuff u can😁 I think it would become popular topic for your channel ✌
Cool project. Have a sub. 😁
Thanks for the support!
Marshmello helmet!
Did anyone ever answer the question? The next project you are doing is updating your popular LED Wall.... though technically, you did a fire pit.
EDIT: nevermind, I see your note that someone did answer -- I thought you gave the answer when you said you were updating your wall. :D
Sorry you missed this one. I’ll probably do another giveaway soon so look out for that
yeeeeoooo where is new videos bro?
I got so busy with school I still haven’t finished the project I started in September. New video probably won’t be up until December
Looks like it's not detecting highs, mids and lows correctly
Shh we don’t talk about that....
What’s actually happening is a miss use of the FFT arduino library. When I made this video I didn’t really understand how a Fourier transform worked so it’s only actually measuring the lows (20-300 Hz)
muito bom
Hi
Hello