10×5 RGB LED Matrix with only 5 IO pins

FP2NND9I8PQYTCR

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.

Join the Conversation

4 Comments

  1. 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.

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

Leave a comment

Your email address will not be published. Required fields are marked *

Notify me of followup comments via e-mail. You can also subscribe without commenting.