M5Stack® Extend Serial IO I/O Module Grove I2C Interface Expansion Board for Arduino ESP32 Development Board Module IoT

Description: EXT.IO is a GPIO Expander. With simple I2C commands you can have up to 8 GPIOs. Integrates PCA9554PW. This 8-bit I/O expander for the two-line bidirectionalbus (I2C) is designed for 2.3-V to 5.5-V VCC Open-Drain Active-Low Interrupt Output operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface. IIC address: 0x27. It's difficult to foresee the needs of your project from the start. EXT.IO is the perfect solution for expanding the number of IO. It allows you to add new features, logic,timing and sensing to alrady highly integrated designs. Product Features: Expanded I/O number: 8 GROVE interface, support UIFlow and for Arduino Two Le go-compatible holes Product Size: 32.2mm x 24.2mm x 11.3mm Product weight: 4.9g Package Included: 1x EXT.IO Unit 1x Grove Cable Related Link: Offical Video Forum Datasheet - PCA9554PW EasyLoader click to download EasyLoader Example: 1. for Arduino IDE To get the complete code, please click here 2. UIFlow To get the complete code, please click here. PinMap: M5Core(GROVE A) GPIO22 GPIO21 5V GND EXT.IO Unit SCL SDA 5V GND