6pcs PCF8574 PCF8574T IO Expansion Board I/O Expander I2C IIC Port Interface Evaluation Develop Module

• I2C interface, I / O expansion module, two I / O scalability 8 I / O (up to 8 simultaneous use the PCF8574 expanded to 64 I / O).
• Supports two interface types access target board: Pin or row seat, Support I2C bus cascade (by pin header row seat docking methods can be used simultaneously multiple I2C modules).
• Typical application: I / O resource shortage MCU I / O expansion
• Test procedures (AVR, STM8, C8051F).
• Package included: 6pcs PCF8574T IO Expansion Board

Features:I2C interface, I / O expansion module, two I / O scalability 8 I / O (up to 8 simultaneous use the PCF8574 expanded to 64 I / O)Most important feature:- Supports two interface types access target board: Pin or row seat,- Support I2C bus cascade (by pin header row seat docking methods can be used simultaneously multiple I2C modules)- Typical application: I / O resource shortage MCU I / O expansion- Main resources: the PCF8574 I2C interface, 8-bit parallelModule function:- This is the I/O extended module, which use for I2C interface, you can use two of the module to extend 8 I/O.- Support cascading, and you can use at most 8 modules to extend 64 I/O at the same time.- Every 2 seconds, make P0-P7 port output High level, Low level, and put 3 toggle switches to ON, the address of module is 0x27.- Can be changed the address by set toggle switch- PCB Size: 36 x 16mm/1.41*0.62"Package included:6 PCF8574T I/O extended module

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