Using SX1509 Breakout to Drive LEDs in Matrix Configuration

The SX1509 is great for keypad input, but can it drive LEDs in a matrix layout?

Hi lambdaknight.

I don’t see why it wouldn’t work as long as you don’t exceed the maximum current per I/O pin. It’s not something we’ve tried and I don’t know if you can refresh the LEDs fast enough to prevent any flickering, but give it a shot and let us know how well it works.