Fletchtronics

PCA9555 is a 16 bit general purpose serial IO expander from NXP Semiconductors. It speaks I2C/TWI. PCA9555 gives your application 16 more IO pins. Up to eight devices can share the same I2C bus. Therefore you can add up to 128 (16*8) additional outputs and/or inputs, using just two microcontroller pins to control them. This version is DIP-24/600 mil shape, perfect for breadboarding.

New Years break. Happy new year everyone!

I didn't do anything BB related at all three of those days. I'm really far behind now and trying to catch up this Sunday evening. Two of the three make-up batches are done, and it's 1am. I'm a Bumble-B making machine today!