For all those who are getting the "printByte" error, you need this code to create the printByte() function (it was left out of the video): void printByte(byte character []) { int i = 0; for(i=0;i
That was very much appreciated, especially as the example programs I was trying with the library were not working for me, and yours turned out to work to be fun. THANKS
Parabéns ótimo vídeo, não achei nem um vídeo bom brasileiro que ensinasse tão bem. Congratulations great video, I did not find a good Brazilian video that taught such good.
Thanks for making this. I own these components, but I plan on using the bottom shield / hat / breakout board portion to drive a custom matrix of LEDs for lamp making. It simply is too cumbersome to not use this module for MAX7219
How quickly can these boot up to play the image ? Lets say I could fit a few of these in my indicators and I want them to play a loop of arrows > depending which way I'm indicating, would the on and off signal from the car be too quick for the Arduino to react? Or would I need the Arduino to be powered on constantly and program it to run through the loops when another electoral input is sent to the board?
Thank you for making this video, it helps me a lot with my project. But I'm facing a problem with the coding, it kept on saying that " 'printByte' was not declared in this scope ". is there any solution??
I hope you took away lots from this video and you managed to get your LED matrix to work. Let me know below! PS. WANT TO LEARN CODING? CHECK MY NEW RUclips CHANNEL! bit.ly/3tku2n0
Hi there, I just recently bought a matrix with 4 of these 8x8 matrices together. I'd like to display the same byte on all 4 of the matrices at once. Do you know how I could modify this code to achieve this? Right now, it just illuminates all of the LEDs on one matrix, then illuminates on the LED matrix to the right, etc.. I've tried changing the value 0 in LedControl(DIN,CLK,CS,0) to 4 but that doesn't work either. Any help would be greatly appreciated! Thank you for your time
I tried to connect 8 units of 8x8 dot matrix display, after i change the program for 8 units and try to display alphabets in scrolling mode then after few seconds the text gets corrupted.. I dont know why this is happening... While its works good if i use four or five units or less units together.. Please help.. Thank you.
I know this is extremely old and irrelevant but seeing as no one helped you I wanted to say that it's because they are in series when connecting them side by side like that...series circuits take away voltage which most dc power sources dont have, your probably trying to use up 8 volts on a 5 volt pin which is why arduino boards can have upwards of 50 pins
If you can give me a hand, I'm building a ultrasonic radar, that use the led matrix to print what the ultrasonic sensor have detected. The ultrasonic sensor is attached in a servo motor, that rotate 180 degrees. I'm having problems with the conditions of the matrix, I mean, transform what the sensor read, in a led( or more) lighted up in the matrix. Do you have any idea of how to do this?I've tried 3 different ways, but anyone worked. Thanks for your help.
Hi, great video! I just wonder, how to use 8 8x8 led matrix for a clock or other scrolling text? I would like the text be "correct way" with wiring up or down, hope you understand :) rotate text
Is there any noticeable strobing while this is operating ? is there a schematic for this ? which pin goes to what row or column ? I want to use the chip for my clock display i am working on.. A ring clock. discreet leds. 216 of them.
How can I change the orientation of the 8x8 LED with MAX so that the instead of the bottom of the characters being displayed with the MAX to the left, I want to display the characters with the MAX on the bottom?
Thanks for the video! very well explained! I would add text rolls in this code, is it possible? For example, rolling the message Welcome! thank you very much
This no longer works. I downloaded the zip from gethub and the code has been changed. When I upload to my UNO, it doesn't do anything...when I compare the code, I can see its different from the video...something is not right.
+An American Homestead The code for the matrix library doesn'twork...the code from the link in the description works fine. the code in the library uses another pin 1.
Hi , It is working very well.But i wants to change somethings in the code . When i am changing something in the code it is showing an error.I was increasing the alphabets size and there number.
I bought a matrix 8x8 with a MAX7219 on EBAY. The compilation and UpLoad of the file LCDemoMatrix.ino are ok. I'm sure of my wiring (DIN CS CLK, Alim.) but it doesn't work :( An idea ? Thanks.
I've got an problem, i upload the code and everything is connected right but the result i get is just that first two led blinks in very short amount of time then one led just blinks in 1 second. Please help
HI and greetings from italy, perfect work and very very interesting me matrix 8x8 with chip max7219 your second ino code run well but i don t have i dea how i can have same images in a second dsplay always black if u can help tell me please what kind of instruction and where i can put into your code to say first 7219 that send same image in a second 7219, i would like to have eyes effect........... thx a lot for your precious time and help best regards Piero ITALY
I have a question more related to code than anything else. Can I modify the library (and how hard could it be?) for the display to show 2 numbers at once instead of one? I'm trying to make a clock and I wanted to use only 3 led Matrix, but I can do that only if I can show 2 numbers per Matrix, other wise I would need 6 Matrix and those wouldn't fit in the container we have. Can someone help me? Thanks in advance!
This is the link to download the program to generate code for LED 1) Extract the File - Use WinRAR software - it is free - download from online 2) Then Extract the file called program 3) Open the pixeltomatrix exe program
Hey! Thanks for this great video and for the tipp with this little generator software, it's awesome! Is it possible to have several predefined letters/pictograms and switch through them with a button? I'm a bloody beginner, maybe you can give me a hint for the code :) best regards
Thank you for this demonstration. This helped me to get started with my LED matrix. I bought 4 of them to chain together. Cheers. :)
Not only is this a great video, but a great scenery at the end, too!
Thanks!
Simple, clear, everything needed - good work ! Thank you !
For all those who are getting the "printByte" error, you need this code to create the printByte() function (it was left out of the video):
void printByte(byte character [])
{
int i = 0;
for(i=0;i
I have a project that I will be starting next week, this is VERY helpful!! THANK YOU!!
Thank you for that video-class friend!
With this didactic, greatly facilitates learning;
Already signed up on your blog;
Once again, thank you
That was very much appreciated, especially as the example programs I was trying with the library were not working for me, and yours turned out to work to be fun. THANKS
+Robert M You are welcome Robert, I am glad that my video was helpful!
THIS ALWAYS HAVE BEEN MY FAVOURITE CHANNEL
Another great one! I love your Arduino videos. Beautiful place you live in... Greece is on my bucket list!
Thanks! If you happen to visit Lakonia sometime, send me a message to show you around!
Good video dude! :-) plus I like the video clip you added at the end with the ocean property. Must be nice to wake up to that every morning!! :-)
Very nice video with absolutely clear audio. Thanks buddy ! I am your fan now !!!!!!!
Ashok Shah Thanks for your kind words!
Parabéns ótimo vídeo, não achei nem um vídeo bom brasileiro que ensinasse tão bem.
Congratulations great video, I did not find a good Brazilian video that taught such good.
Thanks for the video you are so lucky to live there it looks magic
this is an excellent tutorial!!! you are the man!!!
Thank you very much for this video! It is making my life a lot easier.
I like you're voice! It's soo relaxing :D
This video was very helpful! Thank you very much!
This video made the concept of LED display programming click for me
Thanks for making this. I own these components, but I plan on using the bottom shield / hat / breakout board portion to drive a custom matrix of LEDs for lamp making. It simply is too cumbersome to not use this module for MAX7219
I am learning Arduino and I have learned a lot about Greece! thanks from Iran
Thank you . I am learning this from you.
me gusta mucho tu programa
he estado probando con otros y ninguno me funcinó y el suyo si
thank you! Very informative
Nice video! I'd like to see a 7 segment display example.
verry nice, interisting and so helpful.....i really like your videos thanks.....can you explaine to us the use of ACS712 current sensor?
Thanks.It's working nicely.
Where I can find a link for the program in the description of the video ith made caracther on Lcd?
Thanks for the narration.
Nicely done!
Eric William -MKme Tech Thank you Eric! Much appeciated!
Hi, very good video, thank you.
Is it possible to control brightness of individual led? Using MAX7219?
the software to create your own graphics link is blocked. do you by chance know where to get something similar to use?
How quickly can these boot up to play the image ?
Lets say I could fit a few of these in my indicators and I want them to play a loop of arrows > depending which way I'm indicating, would the on and off signal from the car be too quick for the Arduino to react? Or would I need the Arduino to be powered on constantly and program it to run through the loops when another electoral input is sent to the board?
Love the place you live! 😁
I am getting below error on uploading the code:
Invalid library found in the folder examples and LED MASTER
This was a very good tutorial. It help me alot. Could you make a tutorial on how to make a game with it? thanks alot!
Thank you for making this video, it helps me a lot with my project. But I'm facing a problem with the coding, it kept on saying that " 'printByte' was not declared in this scope
". is there any solution??
I hope you took away lots from this video and you managed to get your LED matrix to work. Let me know below!
PS. WANT TO LEARN CODING? CHECK MY NEW RUclips CHANNEL!
bit.ly/3tku2n0
kindly share the link to the software [Pixel to Matrix Software]
i guess it is quite off topic but do anybody know of a good site to watch new tv shows online?
@Aries Gregory i use FlixZone. You can find it by googling =)
Is there also a more simple code because somewhere(i cant find it again)i found one where you dont need to define all the leds sepreatly
Hi there, I just recently bought a matrix with 4 of these 8x8 matrices together. I'd like to display the same byte on all 4 of the matrices at once. Do you know how I could modify this code to achieve this? Right now, it just illuminates all of the LEDs on one matrix, then illuminates on the LED matrix to the right, etc.. I've tried changing the value 0 in LedControl(DIN,CLK,CS,0) to 4 but that doesn't work either. Any help would be greatly appreciated! Thank you for your time
Thank you, it's just great
This is great stuff. How can we cascade the LED's now?
Γειά σου πατρίδα! Τι μου θύμισες απο το όμορφο Λιμένι... Να 'σαι καλά!
fine tutorial and fine view ! :)
I tried to connect 8 units of 8x8 dot matrix display, after i change the program for 8 units and try to display alphabets in scrolling mode then after few seconds the text gets corrupted.. I dont know why this is happening... While its works good if i use four or five units or less units together.. Please help.. Thank you.
I know this is extremely old and irrelevant but seeing as no one helped you I wanted to say that it's because they are in series when connecting them side by side like that...series circuits take away voltage which most dc power sources dont have, your probably trying to use up 8 volts on a 5 volt pin which is why arduino boards can have upwards of 50 pins
how can this be adapted to 5x7 led matrix?
any schematic?
How to add push button switch for every emotion or letter is to display by pushing the switch?
Is it possible to crontrol the thing show in the display with a push button switch or a ir remote.... If yes then how...
I had a huge problem, But you have solved my problem.
I really appreciate your explanation. Thank you for your help.
+Magnus la porta Victor You are welcome!
If you can give me a hand, I'm building a ultrasonic radar, that use the led matrix to print what the ultrasonic sensor have detected. The ultrasonic sensor is attached in a servo motor, that rotate 180 degrees. I'm having problems with the conditions of the matrix, I mean, transform what the sensor read, in a led( or more) lighted up in the matrix. Do you have any idea of how to do this?I've tried 3 different ways, but anyone worked. Thanks for your help.
Hi, great video! I just wonder, how to use 8 8x8 led matrix for a clock or other scrolling text? I would like the text be "correct way" with wiring up or down, hope you understand :) rotate text
Is there any noticeable strobing while this is operating ? is there a schematic for this ? which pin goes to what row or column ? I want to use the chip for my clock display i am working on.. A ring clock. discreet leds. 216 of them.
Hi, is there a board available where the program can be written to an EPROM, rather than having to connect to a PC all the time?
How can I change the orientation of the 8x8 LED with MAX so that the instead of the bottom of the characters being displayed with the MAX to the left, I want to display the characters with the MAX on the bottom?
This is great help thankyou
Thanks for the video! very well explained!
I would add text rolls in this code, is it possible?
For example, rolling the message Welcome!
thank you very much
Great Stuff!
Like
how to use 2D array to show same patterns in the display...
can you tell where is the led programe the one with visual showing at 3:21 pls
This no longer works. I downloaded the zip from gethub and the code has been changed. When I upload to my UNO, it doesn't do anything...when I compare the code, I can see its different from the video...something is not right.
+An American Homestead The code for the matrix library doesn'twork...the code from the link in the description works fine. the code in the library uses another pin 1.
+An American Homestead No, the number 1 refers to how many led matrixes you have hooked up,
does the generartuer code only works with teh max sship?? can i use like SN74HC595N ??
nice! but why I cannot launch pixel to matrix application ? it says that it unable to start correctly ?
Спасибо, всё хорошо рассказано.
nice video well explained 👍
Hi , It is working very well.But i wants to change somethings in the code . When i am changing something in the code it is showing an error.I was increasing the alphabets size and there number.
thanks for the video
I bought a matrix 8x8 with a MAX7219 on EBAY. The compilation and UpLoad of the file LCDemoMatrix.ino are ok. I'm sure of my wiring (DIN CS CLK, Alim.) but it doesn't work :( An idea ? Thanks.
I have trouble because of printbyte function won't compile. I was woundering if anyone could help me?
Many Many Thank's To You.
muito legal e bem explicado.
bro were is the programm of that some graphic something
i Have 8x8 bicolor and (12x12 Pins) led matrix. can MAX7219 works with 12x12 pins and 8x8 bicolor matrix?
excelent tutorial, hello from México
Hello from Sparta, Greece!
I've got an problem, i upload the code and everything is connected right but the result i get is just that first two led blinks in very short amount of time then one led just blinks in 1 second. Please help
Why the command printByte is not orange? I have an error: "printByte was not declared on this scope"
how to make a clock with matrix please make a vedio
thank you
great job great job
Thank you
HI and greetings from italy, perfect work and very very interesting me matrix 8x8 with chip max7219
your second ino code run well but i don t have i dea how i can have same images in a second dsplay always black
if u can help tell me please what kind of instruction and where i can put into your code to say first 7219 that send same image in a second 7219, i would like to have eyes effect...........
thx a lot for your precious time and help
best regards Piero ITALY
how do i make led visualizer using uno...
sir please make a video on led matrix dot moving using adxl335
Please make a video about how to control some DC motor by flysky controller .
I am from Bangladesh .
What the name of Application to get the Code for the character that we want to display?
Hi, great job, where l download the program to generate faster code. minute 3:18.
thank you
ive got a problem with the code it said printbyte isnt decleret in the scoop please help me
very helpful
how the connection for Arduino mega 2560
can you make a tutorial for controlling it with bluetooth
I have a question more related to code than anything else. Can I modify the library (and how hard could it be?) for the display to show 2 numbers at once instead of one? I'm trying to make a clock and I wanted to use only 3 led Matrix, but I can do that only if I can show 2 numbers per Matrix, other wise I would need 6 Matrix and those wouldn't fit in the container we have.
Can someone help me?
Thanks in advance!
***** Thank you very much!
como posso achar esse programa de códigos?
sir, my board is not scrolling what should i do?
Really thank, you are the Best. :)
+johanquintero Quintero You are welcome! Cheers!
What's the programm that u use on 3:40 ? I don't fin itin the description
github.com/bernhard-hofmann/LedByteGenerator
Can you show an ROB version?
This is the link to download the program to generate code for LED
1) Extract the File - Use WinRAR software - it is free - download from online
2) Then Extract the file called program
3) Open the pixeltomatrix exe program
When I used the byte array function it gave me an error saying the function wasn’t recognized
happened to me too
Awesome...
give me link of the software to control led matrix
Hey! Thanks for this great video and for the tipp with this little generator software, it's awesome! Is it possible to have several predefined letters/pictograms and switch through them with a button? I'm a bloody beginner, maybe you can give me a hint for the code :)
best regards
which one is the generator software?
How with led 32x8.
Super