I have seen references to an Arduino library for the SN3218 LED controller chip, an 18 channel i2c device...
What I'm having a much harder time finding is a way to purchase the chip itself. So far no luck on Ebay, nor with the major Canadian electronics vendors I have tried.
Is this chip obsolete already and if so, what would be the recommended alternative (preferably with an existing library because I am lazy)? I did see this
but it seemed a bit pricey and overkill for what I wanted (don't need fancy pwm, just on/off).
I really need to reduce the number of pins occupied by status LEDs and shift registers seem so clunky compared to an i2c slave.