PCF8574 I2C I/O Expansion Module

Product description: PCF8574 I2C I/O Expansion Module is a dedicated expansion module to increase the number of inputs and outputs of controllers such as Arduino, Raspberry Pi, and ESP through the I2C interface. The unit helps connect a larger number of sensors, buttons, LEDs, relays, and keypads without consuming many controller pins. The unit is used in Arduino projects, control systems, prototypes, Internet of Things projects, and electronics experiments that require expanding the number of input and output ports in a simple and organized way. The unit supports address adjustment via jumpers to connect more than one unit on the same I2C line. Product specifications: Model: PCF8574 I2C I/O Expansion Module Product type: I/O Port Expansion Module Main chip: PCF8574 / PCF8574T Interface: I2C / IIC Number of ports: 8-Bit GPIO Expansion Connection pins: VCC / GND / SDA / SCL Address adjustment: A0 / A1 / A2 Jumpers Operating voltage: 3.3V - 5V Compatibility: Arduino / Raspberry Pi / ESP / Microcontrollers Uses: Expansion of inputs and outputs, connecting buttons, LEDs, relays, keypad, and control projects