PCF8575 module expansion IO port expansion board PCF8575 expansion board I2C communication control 16 IO port

illustrate:
Is the I / O pins run out?This powerful module allows users to use only two I / O for control to expand up to 16 I / O!PCF8575 is controlled through the I2C interface, and has 16 quasi -two -way input/output pins.
On the circuit of the 3.3V level converter, if the VCC-VDD pad is not welded, the level of the PCF8575 is 3.3V.If welded, its level will be the same as VCC

feature:
Available library: PCF8575
Working voltage: 2.5-5.5V DC
Work current: 100mA (MAX)
I2C Address: 0x20 (default), you can select the cushion to modify it by welding A1 and A2.
16 pins that can be designed separately.
Each pin can be configured to input or output
The leakage interrupt output pins are used to input changes to interrupt.
It is very suitable for the UNO R3 and other MCUs to control simple relay, bee tweet, buttons, LED.

Product Attributes
Brand	Other/Other
Output Power	0.1

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