Circuit Skills: LED Matrix
ฝัง
- เผยแพร่เมื่อ 1 มี.ค. 2011
- Learn the basics of controlling a grid of LEDs - use one as a miniature game machine and more, as Collin Cunningham takes a look inside the LED Matrix.
Learn more here:
makezine.com/projects/circuit-... - แนวปฏิบัติและการใช้ชีวิต
![[TH] 2024 PMSL SEA W1D4 | Summer | ละเอียดทุกเม็ด เพื่อเข้าไปเก็บคะแนน](http://i.ytimg.com/vi/W6i3u5r1Vbw/mqdefault.jpg)
This guy is simply amazing to me. A+ all around on his projects and the way he explains things. Wish more people could do this kind of stuff!
I like Collin's videos. Not too polished, which is nice.
nothing like watching this guy for some inspiration on all the amazing things you can do with your hands
just awesome,I love watching MAKE videos...thank you for this great video.
collins videos are awesome , wait everyday for the new 1 to come : )
I think Collin is my favorite Maker on this channel.
one of the best episodes yet =)
love your channel always been fascinated by LED
Colin is so cool!
Thank you :)
it's just, that Collins staff are very advanced! I understand about 60% of what he is saying! The end result is always pretty cool!
Sweet video Collin! Keep 'em coming.
Kip Kay and Collins are the best of MAKE
I actually built an 8x8 LED matrix in a very similar way to how he made the 3x3 matrix. I didn't use any board for it, though perfboard would have been nice to help hold the leds in a clean grid and make the display more rigid, sadly though I did not have any on hand. To avoid burning my fingers every time I soldered an led, and to make holding the LEDs in place while I soldered easier, I used play-dough that I flattened out and pushed the LEDs into it to hold them in line. If you decide to do this I definitely recommend using something like play-dough to hold them in place.
In the wise words of Violin Cunningham:
"It's like life... AT HIGH SPEED! It's like life with salsa. Or something."
LMAO
Moooooore Collin, it's a good day today!
Another great video.. please keep them coming
love your vids Collin!
And to think i hated tec at school lol...
Absolutely loves these how too's,keep em coming
Collin should have a whole channel.
Hey, thanks for this, it's actually pertinent to something I want to work on.
Cooool matrix. 😍😍😍😍
I am having great trouble in understanding fetch-decode-execute cycle. I hope you can explain them in great details.
collin is awesome, need more!
Awesome video. Definitely something I would like to try this summer. Can you please tell about the board you used instead of the breadboard? You designed it? Thx in advance.
Nice video, learned a lot! Thank you!
holy crap u made/ETCHED that (PCB?) that is so cool, im just now getting into circuitry and that just seems really awesome
Very intuitive video, its best if you can post the led matrix pin configuration for rows and columns of red and green.
Awesome, as always.
Hey there. He's using CadSoft's Eagle PCB Design software or at least that's what he mentions and shows in his Circuit Board Etching video. You can see the how-to video on their channel, easily found under the playlist for Collin's Lab. Hope that helps.
this man makes me want to learn
COLLIN AND KIPKAY = BEST OF MAKE!
Woohoo! Collin is the real nerd Keep em coming!
sick beat right there collin.. funny thing is started making music first then that lead me to electronics.
I loved Kipkay's videos... but he has his own channel you know guys?
This guy is awesome too
Ty I have been trying to figure this out
I don't know about you, but I REALLY want to meet this guy. especially after watching a million of his vids
love your show
I UNDERSTOOD! I only have to use 3 NPN transistors to power the anodes and power the cathodes directly with the microcontroller. So I use 6 pins of the microcontroller, and use a minimum delay, so, when I flash a LED, and want to flash the another LED togheter, I turn it off it quickly and turns on the other, delay a milisecond and turn it off and turn the other on so fast that nobody will see then turning off!! :D (sorry by my VERY poor english)
Great keep them coming. Could you do something on quad encoders ?
Thanks
@eightstudio he has another video on it. basically its like developing film or silk screening. The have a transparency with the design of the board on it and a board coated with resist. this is then exposed to light after being cured with the paper on top. the portions with the transparency on in will have the resist under it but the portion exposed to light will allow the resist to dissolve. It is then cure again. Watch the video for more detail
Colin, what software did you use to etch that cool board. thanks for the great video.
do you nesessarily need an arduino, or you can set logic gates and things like that to the max7219? or do you need any source to set the frequency?
this was... AWESOME
Collin reminds me of Bree, just, the electronics version. Love this stuff!
I requested them please explain communication topics like microwave and mobile communication u r teaching easy way to understanding
@elmardus
And if for some reason it's hard to see inside the LED, the longer lead coming out of the bottom is the positive lead.
Would you have any tips on how to make LEDs useful to motorcyclists? I have this idea to have a red flat strip or led strip across the back of my glove for signaling or just across my shoulders on a jacket for extra visibility but have no idea how to create something like that. It all needs to be condensed enough to not interfere with driving.
Love your work though Collin.
heey colin, i'm really like electronics and DIY projects such as this one, but i have idea where to start. Where did you acquire your skills? thanx for answering!
I seen some DJs build stuff kinda like this into masks! The most well known currently would be DeadMau5,but there are also a few Japanese DJs doing stuff like this! seems like a cool concept
Dude sweet video
this is really cool
Collin and Kipkay are the best.
True geek! Respect.
this is one inspiring video ;
How about rigging it to an array of distance sensors to make a low resolution depth camera?
Is the Arduino fast enough to generate a scrolling spectrogram at that resolution in real time?
(if it's not obvious yet, i barely know these things; my knowledge about each item could probably fit on a hovertip)
Please do a video on circuit board etching!
i now understand how multiplex work. Thanks
what is handling the ground pins of your LED matrix? Does the MAX handle that?
@MinecraftTechnic Not really. Personally, I'd have to say Fritzing is. It's open source, has great features with diagram/PCB/realistic views, integrates well with Arduino/Processing, and has a huge community of users and university backing behind it.
So if I wanted to increase the number of LEDs, would I need more equipment? Like for example, the size of an 8 ft by 8 ft part of a wall?
Dude please help me! I have a 5X7 led matrix, when I start to program it I use multi dimensional array of 0 and 1 to stimulate the lighting, but still I get some wierd output which is not at all expected... please tell me a solution and I have 7X7 wirings coming out of it, how to identify which is which
Collin says that the the process of multiplexing is- lighting few LEDs fast. Actually it is called persistence of vision.Multiplexing is wiring method used here! correct me if I am wrong.
That sounds like phosphor persistence, like a CRT, where the excited phosphor glows long enough for the electron beam to make it's rounds before hitting a particular area again. What confuses me, is in the video he is talking about multiplexing being a way to get around multiple LEDs lighting when all you are attempting to do is light a certain one, but then explains how this multiplexing will light them up so fast that they ALL appear to be lit at once. Is that not making the initial problem worse? - "Well, this one here lights up along with this one, but... if I do THIS they ALL appear to light up at the same time! Problem solved!" ??????????
"Life with salsa" Muy Calienta!!!
can one somehow get your music? i love it.
"If you cant open it, you dont own it" I love it!
if u guys want collin so much tell him to make his own channel
I think it would be interesting to watch you make something very complex. Like a screen for something like a computer or something with LEDs or something. Idk
What code does the max7215 take in?
Where did you get the LED matrix?
@kolby4078 it would actually be 800,000 x3 because each pixel is a red green and blue led:)
This the beginning of making your own game handheld, thanks.
check out arduboy
I'd really love to have the PCB schematic (; Could you share them with us?
LED Matrix 8-Bit art would be cool. :)
Is this the same principle in which LCD or backlit led screens work?
Awesome!
@TutorialsByKevin If you want to assemble the matric of LED's which adds up to... lets see, 1024x768x4 for the colour combinations, you need right around 3.1 million individual LED's that need to be soldiered, not to mention the control boards. Good luck with that.
Now this is closer to what I want to do. Anyone know how to light up rows of leds based on volume?
how do you program the leds to light up in different ways im not much of a computer geek
@speedster661 agreed. but more kipkay videos too!
where do you get the MAX7219.
Can you subtitute a MAX7219CNG+ ?
In Makemagazine channel, I only watch Collin's Lab
more collin videos!!!!!!
what this guy is amazing
I want to make this pong!
Soo if I want to drive an RGB LED matrix, how should I do it? Can I consider it as three separate 1-color matrices and use the MAX721 chip to drive each of them? Or are there some better ways to do it?
Sci Twi Three separate drivers would work. By using PWM and creating 0 - 255 intensity levels as well for the RGB channels, you have yourself a 16.4m colour 8 x 8 pixel display :)
GreatScott also has a tutorial on it.
What brand of soldering iron do you use?
Can anybody please tell me that how can I use Max7219 with PIC micro and C language to drive led matrix? I use MikroC.
Man i wish you made this 5 months ago, when i had to learn this the hard way ._.
He's now at the Adafruit industries channel :)
holy.... That bread bored at 4:22 is ridiculous!
@beme17764 he did make one... just look for it in one of the playlists
that was cool !
Also, Collin, where did you find a footprint for the matrix?
What kind of qualifications do you have?
YAH! i never understood how to use thouse, thanks!
Even though I don't build anything in Collins videos, I still love watching how he makes them :>
How the heck did he make that controller mounted on the same board as the LED-Matrix in the beginning? I want to know how to make such a controller. x_x
what program do you use to make pcb???
Could you light two different colors in the same row?
what kind of program for designing PCB are you using ?
5:30 Forever alone ! XD i love you Collin!