M5Stack Extend I/O 2 Unit (STM32F0)

The M5Stack Extend I/O 2 Unit (EXT.IO2) is an IO extension unit, based on the STM32F030 main controller, using the I2C communication interface and providing 8 IO expansions.

Each IO supports independent configuration of digital I/O, ADC, SERVO control and RGB LED control modes. Supports configuration of device I2C address, which means that users can mount multiple EXT.IO2 UNITs on the same I2C BUS to extend more IO resources.

Suitable for multiple digital/analog signal acquisition, with lighting/servo control applications.

Features

• 8-channel input and output expansion:
  • Digital I/O
  • ADC input
  • SERVO control (PWM)
  • RGB LED control
• I2C communication interface:
  • Supports configuration of I2C address

Package Contents

• 1x EXT.IO2 UNIT
• 1x HY2.0 4-pin cable

Specifications

Resources

• Product Wiki
• Schematic
• Arduino Example
  • ADC Input
  • Digital Input/Output
  • RGB LED Control
  • Servo Control

Pinout