2 Stück PCF8575 IO Expander Modul I2C bis 16IO Modul I/O Extension Shield Modul 16 Bit SMBus I/O Ports mit Dupont Kabel für Arduino UNO R3

Product Description
New Open-Smart PCF8575 IO Expander Board Module I2C to 16IO For für Arduino
Descriptions:
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 für 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 für Arduino UNO R3 and other MCU to control simple relay, buzzer, button, led.
Size: 4x2.1cm/1.57x0.83inch
Package includes:
2 x Expander Module
1 x 40-pin Male and female DuPont cable