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Description: Do you like LED matrices? We do! Now we are giving you the power to make your own with minimal soldering any beginner can perform and give you a great introduction to programming an LED Matrix. This kit will show you how to use the MAX7219 to interface Arduino to easily drive an 8X8 LED matrix.

See the links below for assembly instructions, example code, and other information.

Kit Includes:

  • 1 x LED Matrix PCB
  • 1 x 8x8 Red LED Matrix
  • 1 x MAX7219CNG
  • 1 x 10uF/25V Electrolytic Decoupling Capacitors
  • 1 x 10k Resistor
  • 1 x 0.1uF Capacitor
  • 1 x 28-Pin IC Socket
  • 2 x 8-Pin Machine Pin Header
  • 2 x 5-Pin Right Angle Header

Documents:

Comments 18 comments

  • This kit is being sold for $9.95 while the MAX7219CNG (included in this kit) ALONE is being sold for the same price in the related products… How can this kit cost so little?

    • Volume? A MAX7219CNG runs about $5 in quantity >100 from Mouser/DigiKey. For one kit, this is a really great deal!

  • This uses a pretty standard 32mm (1.2") square LED array, so if you want a different color this board should work with the green, yellow, and blue displays at Adafruit (but not the white one).

  • I have completed the kit and uploaded the sample code but my leds are just flashing random ones on and off. Doesn’t look close to [0-9] or [A-Z] I think my led matrix is shot right from the start. When I plug it in at first only a few rows light up with a blank row or two (one vertical and one horizontal) then a few led are out here and there. I wish I could show you a picture or video of how it looks. I have checked the wires to make sure they are all correct more than once cant find a fix. Do you think its a faulty matrix?

  • I commend Sparkfun on exceptional build quality and a decent price but I have one complaint. The width of the board does not allow for seamless, edge to edge arrangement, at least on the dozen I ordered. The LED matrix supplied measures 31.9mm but the board is 33.8mm. The gap won’t effect my project but if I was anticipating building a scrolling LED sign it would have been an issue. Another manufacturer’s board measures 32mm so it was much easier to eliminate the gap or at least make it not as noticeable. I decided to go with the Sparkfun board because the MAX7219 was an original part, the other board supplied a knockoff and I had a hard time eliminating flicker and random dots (not a power supply issue).

  • is there any good sites for me to learn to serial interface with an led matrix because i don’t understand how to.

  • I’m tech-illiterate and looking to buy a gift for my techie boyfriend. Is this Matrix compatible with an Arduni Uno? If so, are any additional components required to hook the Uno up to the Matrix?

    • It’ll work fine with the Uno as well.

      It’s a complete kit. However, you may want to pick up one of the ‘jumper wire’ offerings (see ‘related products’ below the comments section, or just search for ‘jumper wire’ for more options) so that it’s easier to connect this board to the Uno. This board has a male connector and the Uno has female headers, so you have to go from female to male (either directly, or through the nice 5-pin female/female jumper wire, and then loose male/male ones to connect that wire to the Uno). If your boyfriend already has a collection of jumper wires, then he should be good to go :)

  • this looks clumsy to connect multiple together to make a seamless sign. The Parola design fixes that in one direction. Also the Parola’s library would probably work for this module as well

  • Would someone be able to get code for an arduino pong game?

    Btw this is $3 on ebay with free shipping

  • ok, so I’ll be the dumb guy to ask the question. Why 2 caps? (I see that the datasheet says to minimize power supply ripples, but I don’t understand why 2 different caps helps more than just a single decoupling cap.)

    • Electrolytic caps are more effective at low frequencies and ceramic caps are better for high frequencies. Neither makes a good filter by itself.

  • I find Elecrow has a Led matrix kit assembled module with same price. But it’s green PCB Not the white one.

  • It would have been nicer if the PCBs were laid out such that you could chain them together on all sides, ie PCBs don’t extend past LED matrix on all sides. With this design you can put the LCDs side by side but not top to bottom– can’t tell if PCB is fully within borders of LED or whether a small gap would remain. Regardless, even if you did line up two or more side by side, you would have to route wires from the top of the first to the bottom of the next. Lining up top to bottom (input to output) would leave a huge gap between the LED matrices.


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