PCF8574 I2C 8-bit I/O expander GPIO Digital Pin Expansion Module PCF8574 I2C Interface 8-bit IO Expansion Board I/O Expander Compatible dengan Arduinoo, ESP8266, ESP32, STM32, Raspberry dll. Library and Titorial : https://playground.arduino.cc/Main/PCF8574Class https://playground.arduino.cc/Code/I2CPortExpander8574 http://www.instructables.com/id/Arduino-and-PCF8574-IO-Expander-Binary-Counter-and/ https://github.com/skywodd/pcf8574_arduino_library Features : • Low Standby-Current Consumption of 10 μA Max • I2C to Parallel-Port Expander • Open-Drain Interrupt Output • Compatible With Most Microcontrollers • Latched Outputs With High-Current Drive Capability for Directly Driving LEDs • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II Fungsi : -Menambah jumlah GPIO pada Microcontroller -Driver LCD (menghemat jumlah pin yang dipakai untuk LCD) -Driver LED dll. Tersedia 3 pilihan Varian Hijau (Type 1) Merah (Type 2) Kuning (Type 3) *Harga tertera 1pcs sesuai varian yang dipilih