It's been awhile since I've done a proper project, mainly been doing alot of tinkering.
But I have a new project that I'd like to share. I wanted to make something like sparkfuns 2x2 Simon game. but using adafruits 4x4 silicone buttons.
Ofcourse adafruit sell a breakout board with an i2c keypad scanner/single colour led driver.
I thought how hard is it to replicate that design, but add SMD RGB LEDs under each button!! Now this is still a work in progress.
Here is the schematic, there isn't too much to the design. Just a MSP430F55xx 64QFN and a TLC5955 48 channel 16bit LED driver.
Because I'm using such a large MSP, I trashed a keypad multiplexing idea and went straight for direct. the same with the LEDs.
The board isn't very fancy either. This was my first board with kicad, moved from altium. (I needed to make the change sometime, will not be able to afford a non-student license)
I haven't doe any software for this project. and this is the first USB project I've ever made. So progress might be slow. but I'm interested if you guys have ideas for this platform.
I'm not sure if the stock USB bootloader can be called from software? I know that the ezFET does this, but they use custom BSL code, which I might need to look into.
I have a fair bit of leftovers and might consider placing some boards on tindie, the only downside is that the two ICs are expensive and practically double the BOM.
----Edit----
TLC5955, not TLC5595