The evaluation board is built around the PCAL6408A, low-voltage translating, 8-bit I2C-bus/SMBus I/ O expander with interrupt output, reset, and configuration registers, produced by NXP Semiconductors ...

An Arduino library for interfacing with 4 and 8-bit I2C GPIO expanders. PCA9534/TCA9534, PCA9536/TCA9536, PCA9537/TCA9537, PCA9554/TCA9554, PCA9556/TCA9556, PCA9557/TCA9557 are supported.

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino. Who Won and Lost in Trump’s Tax Bill Scientists tracking ‘interstellar’ object that has come ...