PCF8575 Module Expanding I/O ports Expansion module The PCF8575 expansion module provides 16 I/O ports for communication control_Various types Modules

Product Description

Instructions:
Are you out of I/O pins? This powerful module allows users to scale up to 16 more I/OS using only two I/OS for control! The PCF8575 is controlled via an I2C interface and has 16-bit bidirectional input/output pins.
On an onboard 3.3V level converter circuit, if the VCC-VDD pad is not welded, the level of PCF8575 is 3.3V. If welded, its level will be the same as VCC

Features:
Available library: PCF8575
Operating voltage: 2.5-5.5V
Working current: 100mA (MAX)
I2C address: 0x20 (default), which can be modified by welding A1 and A2 selection pads.
16 individually addressable pins.
Each pin can be configured as an input or output
Open leak interrupt output pin for input change interrupt.
Ideal for UNO R3 and other MCUS to control simple relays, buzzers, buttons, leds.

PCF8575 Module Expanding I/O ports Expansion module The PCF8575 expansion module provides 16 I/O ports for communication control