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RobotDyn - 8 Channel IO Extender / Expander - expansion board module, 8-bit IC PCA8574 - PCA8574AD


Product Description:

If you just don't have enough digital I/O pins on your Arduino to interface with all your sensors and controls, you might want to look at using the I2C bus to connect a few port expander chip PCA8574AD have 8 digital I/O bits and can be set to addresses 0x38-0x3F respectively.

The I2C bus on the Arduino uses SCL, SDA, a couple of pull up resistors and the Wire library.

You can connect more expander module. More 8 modules. Just change adress of each module.

On back side of board have instruction.

If you need more connecting modules, pls cut off the connexion of pull-up resistor on back side of board. Only 1 board need pull-up resistor.

Technical characteristics:
- IC expander PCA8574AD
- I/O expand 8 pins
- Addresses 0x38-0x3F

Product official page:
* For get a detail information of product, instruction, schematic diagram, dimension diagram, guide and software, Pls visit to official page of product.

RobotDyn(R) - registered trademark in USA.
Zhuhai RobotDyn Technology Co.,Ltd - Developer and manufacture.

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