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MAX7219 Dot Matrix Module 4-in-1 LED Display Module

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R$86.76 / R$105.86

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MAX7219 Microcontroller 4-in-1 Display Dot Matrix Module For

Specifications:

A single module can drive a 8x8 dot matrix common cathode
Working voltage: 5V
Module size: 12.8 x 3.2 x 1.3 cm (L*W*H)
With 64 fixing screw holes, hole diameter: 3mm
Module with input and output interfaces, support for cascading multiple modules

Wiring:

1. The left side of the module is the input port, and the right is the output port.
2. Control of a single module, the input port only need to receive CPU.
3. The more a module cascade and input end of the first module is connected with the CPU and input end of the input end of the output end is connected to the second module, output terminal of the second module connected with the three modules, and so on.
For example: 51 SCM
VCC→5V
GND→GND
DIN→P2.2
CS →P2.1
CLK→P2.0

Package included:

1 x MAX7219 Dot Matrix Module
1 x 5pin Dupont Cable

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MAX7219 Dot Matrix Module 4-in-1 LED Display Module

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A part of the review has been auto-translated.

Paul Kroon VIP5
NL

12/02/2017

I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed.
Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read:
#define USE_FC16_HW 1
I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch
and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX
Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino
With that you should be able to get it to work.
If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.

I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed.
Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read:
#define USE_FC16_HW 1
I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch
and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX
Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino
With that you should be able to get it to work.
If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.

I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed.
Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read:
#define USE_FC16_HW 1
I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch
and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX
Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino
With that you should be able to get it to work.
If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.

20

Comments (2)

Show Original
venpap VIP3
GR
19/12/2020

very good product and good price.
If you don't know how that work i found one good tutorial.
https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/
If you try the programs and see that they do not work with the first one.
Try changing the names of the pins you will use and reload the program on Arduino.
e.g.
CS_PIN 10
DATAPIN 11
CLK_PIN 13

very good product and good price.
If you don't know how that work i found one good tutorial.
https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/
If you try the programs and see that they do not work with the first one.
Try changing the names of the pins you will use and reload the program on Arduino.
e.g.
CS_PIN 10
DATAPIN 11
CLK_PIN 13

very good product and good price.
If you don't know how that work i found one good tutorial.
https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/
If you try the programs and see that they do not work with the first one.
Try changing the names of the pins you will use and reload the program on Arduino.
e.g.
CS_PIN 10
DATAPIN 11
CLK_PIN 13
Rotate left Rotate right
14

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0

Q:
what colors are possible?

what colors are possible?
what colors are possible?

A:

@***** look it up in the MAX7219 datasheet. Another cool thing about these ICs is the need for just one resistor to limit the current for all segments x digits (64 per IC) to retain the same brightness whether only one LED is on or all 64. IIRC there's a chart there with recommended resistor values depending on number of LEDs. I could probably lift one of the 8x8 matrices off and see what resistor value they've used, but the datasheet should give you an idea. Assume you need an external power supply though. They're not super bright but it's still 256 LEDs.

@***** look it up in the MAX7219 datasheet. Another cool thing about these ICs is the need for just one resistor to limit the current for all segments x digits (64 per IC) to retain the same brightness whether only one LED is on or all 64. IIRC there's a chart there with recommended resistor values depending on number of LEDs. I could probably lift one of the 8x8 matrices off and see what resistor value they've used, but the datasheet should give you an idea. Assume you need an external power supply though. They're not super bright but it's still 256 LEDs.

Answered by BG344213471 on 31/08/2022Helpful (0)
0

Q:
Can I daisy chain several of these? By just connecting output of the first with input of the next?

Can I daisy chain several of these? By just connecting output of the first with input of the next?
Can I daisy chain several of these? By just connecting output of the first with input of the next?

A:

Depending on how much you want to daisy chain you should inject supply power every 2 or 3 modules else the voltage drop and the current running through the modules gets to high

Depending on how much you want to daisy chain you should inject supply power every 2 or 3 modules else the voltage drop and the current running through the modules gets to high

Answered by BG346351252 on 02/05/2021Helpful (0)
0

Q:
does this come with a users manual?

does this come with a users manual?
does this come with a users manual?

A:

Depends on what you mean by "users manual". The datasheet for the MAX7219 controller is excellent and all you need to know to program these things. If you want plug and play there are multiple libraries to choose from.

Depends on what you mean by "users manual". The datasheet for the MAX7219 controller is excellent and all you need to know to program these things. If you want plug and play there are multiple libraries to choose from.

Answered by BG344213471 on 31/08/2022Helpful (0)
0

Q:
I can choose the color of the matrix or only send it in a single color?

I can choose the color of the matrix or only send it in a single color?
I can choose the color of the matrix or only send it in a single color?

A:

yes

yes

Answered by BG388571412 on 14/07/2022Helpful (0)
0

Q:
Dumb question- I'm new to all this: Do I have to buy the leds and solder them all myself or are they already installed in the "board"?

Dumb question- I'm new to all this: Do I have to buy the leds and solder them all myself or are they already installed in the "board"?
Dumb question- I'm new to all this: Do I have to buy the leds and solder them all myself or are they already installed in the "board"?

A:

no. yes in the board

no. yes in the board

Answered by MrRebot on 27/06/2022Helpful (0)
0

Q:
Thank you, I found the answer. It is the word ICSTATION. And now it works perfectly. It's no longer mirrored. Great.

Thank you, I found the answer. It is the word ICSTATION. And now it works perfectly. It's no longer mirrored. Great.
Thank you, I found the answer. It is the word ICSTATION. And now it works perfectly. It's no longer mirrored. Great.

A:

yes

yes

Answered by PravinK on 17/07/2023Helpful (0)
0

Q:
how many jumper wires are there they will give jumper wires

how many jumper wires are there they will give jumper wires
how many jumper wires are there they will give jumper wires

A:

yesthey will give you five jumper wires with the matrix in diferent colours

yesthey will give you five jumper wires with the matrix in diferent colours

Answered by MrRebot on 07/12/2022Helpful (0)
0

Q:
What is the current draw for each 8x8 grid all LED’s on full brightness?

What is the current draw for each 8x8 grid all LED’s on full brightness?
What is the current draw for each 8x8 grid all LED’s on full brightness?

A:

Maximal current draw is 700 for complete set. For one modul could be a quarter 😉 consumption of the driver will be insignificant.

Maximal current draw is 700 for complete set. For one modul could be a quarter 😉 consumption of the driver will be insignificant.

Answered by Datel69 on 14/12/2021Helpful (0)
0

Q:
How can i connect it with Mobile or PC ? How can i send the Display Message to device ? Do you have any video for setup ?

How can i connect it with Mobile or PC ? How can i send the Display Message to device ? Do you have any video for setup ?
How can i connect it with Mobile or PC ? How can i send the Display Message to device ? Do you have any video for setup ?

A:

no i dont have

no i dont have

Answered by Rio221213 on 01/03/2022Helpful (0)
0

Q:
Healthy. Works fantastis. Why do I have a mirror image? What program do I add to the program? Is it SKU385917?

Healthy. Works fantastis. Why do I have a mirror image? What program do I add to the program? Is it SKU385917?
Healthy. Works fantastis. Why do I have a mirror image? What program do I add to the program? Is it SKU385917?

A:

yesit is

yesit is

Answered by MrRebot on 27/06/2022Helpful (0)
0

Q:
i need green or blue colar

i need green or blue colar
i need green or blue colar

A:

This is only red, green or blue maybe you can customize, but the quantity may be enough. "BangGoodWholesale";

This is only red, green or blue maybe you can customize, but the quantity may be enough. "BangGoodWholesale";

Answered by Teleology on 13/10/2020Helpful (0)
0

Q:
yellow colour

yellow colour
yellow colour

A:

red color

red color

Answered by HilaryHuangyunyi on 15/08/2020Helpful (0)
0

Q:
I don't know why they advise shows 6.99Usd but when i enter, ir shows 7.99

I don't know why they advise shows 6.99Usd but when i enter, ir shows 7.99
I don't know why they advise shows 6.99Usd but when i enter, ir shows 7.99

A:

Perhaps the price difference between different warehouses.

Perhaps the price difference between different warehouses.

Answered by wujiahui on 12/02/2019Helpful (0)
0

Q:
Healthy. It works well. Why are they reversed? Thanks for advice.

Healthy. It works well. Why are they reversed? Thanks for advice.
Healthy. It works well. Why are they reversed? Thanks for advice.

A:

Sorry. I don't quite understand what you mean by "reversed".

Sorry. I don't quite understand what you mean by "reversed".

Answered by wujiahui on 28/01/2019Helpful (0)
0

Q:
How much power (current) is required to run the board?

How much power (current) is required to run the board?
How much power (current) is required to run the board?

A:

Dependedo njZ:

Dependedo njZ:

Answered by top_171 on 11/03/2022Helpful (0)
0

Q:
which library i need to install for it

which library i need to install for it
which library i need to install for it

A:

Use the MD_MAX72XX library. With the device set to: #define HARDWARE_TYPE MD_MAX72XX::ICSTATION_HW. If you don't change that line in the examples, the characters are mirrored. Use the MD_Parola library (also) for even more functions. All sketches have to include that line, the default is Parola hardware.

Use the MD_MAX72XX library. With the device set to: #define HARDWARE_TYPE MD_MAX72XX::ICSTATION_HW. If you don't change that line in the examples, the characters are mirrored. Use the MD_Parola library (also) for even more functions. All sketches have to include that line, the default is Parola hardware.

Answered by Strider on 28/11/2018Helpful (0)