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

MCU STM32F030

I2C Address 0x45(default)

Number of IO extensions 8

IO interface PIN spacing 2.54mm

IOSupport Mode Digital input/output ADC SERVO control RGB LED control

IO Input/Output Level Support 3.3V

Net Weight 5g

Gross Weight 13g

Product Size 32*24*11mm

Package Size 93*138mm

Resources

* Product Wiki

* Schematic

* Arduino Example

* ADC Input

* Digital Input/Output

* RGB LED Control

* Servo Control

Pinout

M5Core (PORT A) GPIO22 GPIO21 5V GND

EXT.IO2 Unit SCL SDA 5V GND