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10×5 RGB LED Matrix with only 5 IO pins

Posted on Monday, April 27th, 2015 in Arduino, DIY, LEDs by DP

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Here’s an instructable on LED Matrix with custom code/software by Ole_L:

This is the software which you need:
-Arduino
-Processing
Flash the software to your Arduino and open the processing project with… Processing! Now you should change the line “String portName = “/dev/ttyACM~”;” to your Serial port, on WINDOWS “String portName = “COM~”;”

Via the contact form.  Thanks Jan!

Check out the video after the break.

This entry was posted on Monday, April 27th, 2015 at 2:07 pm and is filed under Arduino, DIY, LEDs. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

4 Responses to “10×5 RGB LED Matrix with only 5 IO pins”

  1. KH says:

    The project is using WS2812, so bragging about 5 I/Os is a bit of cheating…

  2. bork says:

    Why not do it with one pin? Much easier. There is no benefit of driving 5 strips with 10 leds in parallel. The protocol is fast enough to update 5×10 leds serially.

  3. SillyPerson says:

    If it’s WS2812 couldn’t it be done with one pin? Seems like a waste of four good pins.

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