PCF8574 GPIO Extender – With Arduino and NodeMCU
PCF8574 GPIO Extender – With Arduino and NodeMCU
In my last tutorial, I talked about the TCA9548A MUX which can be used to add at the max of 64 I2C or IC sensors to your Arduino/ESP8266/ESP32. In this tutorial, I am going to talk about the PCF8574 8-bit GPIO Port Extender. It is one of the many GPIO exte…
