M5Stack Extend I/O 2 Unit (STM32F0)

M5StackSKU: U011-B
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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

Pinout

M5Core (PORT A) GPIO22 GPIO21 5V GND
EXT.IO2 Unit SCL SDA 5V GND

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