PCA8574AD I2C Port Expander I/O Extension 8 Pin
If you simply do not have enough digital I/O pins on your Arduino, you can expand your I/O by 8 with this PCA8574AD port expander chip. The modules can easily be addressed via jumpers (0x38-0x3F). This allows you to connect 8 modules to the I2C bus. With 8 connected modules, you thus have 64 more I/O. If you connect several modules to the I2C, please disconnect the connection of the pull-up resistor on the back of the board except for one module. Because only one module needs the pull-up resistors.
Technical Details:
- IC: PCA8574AD
- Operating Voltage: 3.3 to 5V
- Inputs/Outputs: 8
- Grid dimension: RM2.54
- Interface: I2C
- Addressing: 8 different addresses (0x38-0x3F)
- Standard Address: 0x38
- Size: 30 x 28 x 12mm
- Weight: 7g
Scope of Delivery:
- 1x PCA8574AD I2C Portexpander I/O Expansion 8 Pin
PCA8574AD I2C Port Expander I/O Extension 8 Pin
- Brand: RobotDyn
- Product Code: 420607
- Availability: In Stock
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CHF8,90
- Ex Tax: CHF8,23
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Tags: Port Expander, Port Extension, PCA8574AD, PCA8574, PCF8574, PCF8574AT, Arduino, Raspberry, I2c, Breakout, Board, Module, I2C, 3.3V, 5V, 6970622931560, RobotDyn