2PCS PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino UNO R3

Description

• Working current: 100mA(MAX); I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads.
• PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino UNO R3
• 16 individually addressable pins; Each pin configurable for input or output.
• for Arduino available library: PCF8575; Working voltage: 2.5 - 5.5VDC
• New Open-Smart PCF8575 IO Expander Board Module I2C to 16IO for Arduino for Arduino UNO R3 and other MCU to control simple relay, buzzer, button, led.

New Open-Smart PCF8575 IO Expander Board Module I2C to 16IO For Arduino
Have you run out of I/O pins? This great module allows the user to expand up to 16 I/O using only two I/O for control! The PCF8575 is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins.
On board 3.3V level converter circuit, if you donot solder VCC-VDD pad, the PCF8575 level is 3.3V. If you solder it, the level will be the same with VCC.
Features:
- for Arduino available library: PCF8575
- Working voltage: 2.5 - 5.5VDC
- Working 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 input change interrupt.
- Great for Arduino UNO R3 and other MCU to control simple relay, buzzer, button, led.
Package Includes:
2 X PCF8575 IO Expander Board Module

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