Arduino I2C Scanner: PCF8574 Scan, Find & Mapping Address IC PCF8574T 8-bit Digital GPIO Expander Posted byGPMarch 9, 2021Posted inVideosTags:DIY, howto, idea, tutorial, youtube #scl #sda 2 wires #i2c scan mapping PCF8574T up to 8 possible combination addresses Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related