Connect an 8x8 LED Matrix to a Small Breadboard
by RedKingTinkerer in Circuits > LEDs
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Connect an 8x8 LED Matrix to a Small Breadboard
These matrices are fun to play around with, but their size makes them difficult to use on most breadboards. Here's one way to mount it on a small breadboard in a (relatively) neat way.
You'll need:
1 breadboard
1 8x8 LED matrix (this one is 1588BS)
Standard yellow, blue, grey, and brown jumper wires. (4 of each)
(Optional): 4 additional yellow wires OR 4 green wires.
You'll need:
1 breadboard
1 8x8 LED matrix (this one is 1588BS)
Standard yellow, blue, grey, and brown jumper wires. (4 of each)
(Optional): 4 additional yellow wires OR 4 green wires.
Yellow
Connect yellow jumpers across b8-b12, i8-i12, b19-b23, and i19-i23.
Blue
Connect the blue jumpers next to the yellow, as shown, with the blue wires on the inside, connecting one pin above and below the yellow.
The Rest
Repeat the process with the remaining colored wires.
Connect
Connect the matrix to the breadboard so that the top pin on the left connects at a12.
(optional)
As you can see, the yellow jumpers are still partially concealed by the matrix, so you may want to extend them to be more accessible. You can use 4 more yellow wires and keep everything linear, use 4 green wires and skip a pin, or use 4 green wires at an angle. I chose the latter, because I didn't have enough yellow connectors and I don't like gaps.
Use!
I used this with an arduino uno, and it works great. The wires look like a mess, but that's because I used a bunch of short ones. It might take a little guessing and checking to figure out the right orientation, but I got it working without too much trouble or time.