[EOL] Extend Serial I/O Unit (PCA9554PW)

Description

Unit EXT.IO is a parallel port expander. It integrates the IO expansion chip PCA9554PW, supporting expansion to 8 GPIOs, and can be used for 2.3 ~ 5.5V VCC, open drain, pull-up, and interrupt output operations. Through the I2C interface (serial clock SCL, serial data SDA), it assists most microcontrollers in providing I/O expansion. For developers who are short on I/O pins and do not want to waste resources by adding extra controllers, Unit EXT.IO is a good assistant.

Features

• I2C Communication
• Input/Output Expansion
• HY2.0-4P Interface, supports UIFlow and Arduino.
• 2 x LEGO Compatible Holes

Includes

• 1 x Unit EXT.IO
• 1 x HY2.0-4P Grove Cable (20cm)

Specifications