Feature

●Parameters: Operating voltage: 2.5 - 5.5 VDC; Operating current: 100 mA (MAX); I2C address: 0 x 20 (default), A1 and A2 selection pads can be changed by soldering the item
●Pins: 16 individually addressable pins. Each pin can be configured for input or output
●Features: Open drain interrupt output terminal for change input
●【Application】:The new Open-SmartPCF8575IO Expander Board Module I2C to 16IO for Arduino UNOR3 and other MCU controls simple relay, buzzer, button, and LED
●Product Condition: The module is made of 100% original electronic components and is brand new, so you can buy with confidence


Description

Product Description
New Open-SmartPCF8575IO Expander Board Module I2C to 16IO for Arduino
Description:
Running out of I/O pins? This superior module allows users to use two I / O to control to expand up to 16 I/Os. PCF8575 is controlled via I2C interface and has a 16-bit semi-bi-directional input/output pin.

Onboard 3.3V level converter circuit, if you do not solder the VCC-VDD pad, PCF8575 level 3.3V. When soldered, the level is the same as the VCC.

Function:
For the library available on Arduino: PCF8575
Operating Voltage: 2.5 - 5.5 VDC
Operating current: 100mA (MAX)
I2C address: 0x20(default), can be modified by soldering A1 and A2 selection pads.
16 individually addressable pins
Each pin configurable for input or output
open drain interrupt output pin for change input.
Ideal for ArduinoUNO R3 and other MCU to control simple relays, buzzers, buttons, and LEDs.
Size:4*2.1cm/1.57*0 83 in.

Package Includes:
2 x Expander Module
1 x 40 Pin Male to Female DuPont Cable