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More:Arduino Shields
The PCF8574 I2C Arduino IO Expander Shield is an 8-bit input/output expander that communicates via the I2C protocol. Up to 16 PCF8574 modules can be connected to the same SDA and SCL lines, providing a total of 128 digital I/O pins. It is compatible with all Arduino models, making it ideal for projects that require a large number of digital inputs and outputs.
Technical Specifications
- Number of I/O Pins: 8
- Operating Voltage: 2.5 – 6 V
- Communication Frequency: 100 kHz
- Operating Temperature: -45°C to 80°C
