I2C controlled 4X4 RGB LED matrix
Mashiara designed an I2C controlled 4×4 RGB LED matrix. He uses 3 PCA9635 I2C-to-PWM drivers with 16 PWM outputs. Each IC controls a different basic color of the LEDs.
The up-side to this design is that all of the drivers are on-board, and only control signals are needed to manipulate the matrix. The down side is that his design requires 4 layers to route, and 4 layer boards are quite expensive to make.
Via comments.
This entry was posted in project logs and tagged I2C, PCA9635, RBG LED matrix.
Comments
heh, 15minutes of infamy… This design is not really complete yet, I just had to get it out of my head before I went crazy thinking about it.
Though I am thinking of trying to make a 2×2-layer version so the chinese cheap PCB factories could be used.
The main point of doing things like this is that you can daisy-chain a bunch of these boards (try charlieplexing or using shift-registers to drive 80 RGB leds for example [I’ll post something about *that* project when I’m done with it…)…
Mashiara ! Thank you for doing that ! I have been looking for a driver for an LED project of mine and I think the one you used here will work just fine. Please keep me updated on your awesome project! BTW do you have a blog I can follow?