I2C multiplexing Sometimes you need to control more devices than possible with the default address range the device provides. This is possible with an I2C multiplexer e.g. TCA9548 which creates up to ...

REV D - June 2022 The I2C IO expander MCP23017 has changed according to the new data sheet. It is now described as a 14/16-bit IO expander. The pins GPA7 (7) and GPB7 (15) have lost their input mode, ...