PCF8574 IO Expansion Board I2C-Bus Evaluation Development Module – Expand Your Microcontroller's I/O Capabilities Tomzn dc breaker which has a good anti-slip

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PCF8574 IO Expansion Board I2C-Bus Evaluation Development Module – Expand Your Microcontroller's I/O Capabilities Tomzn dc breaker which has a good anti-slipPCF8574 IO Expansion Board I2C Bus Evaluation Development Module is port extender module for arduino, raspberry pi and other development boards. its 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 and its typical application are I O resource shortage MCU I O expansion.