Description

The M5Stack EXT.IO2 Unit is an I/O expansion module designed to add flexible input and output resources to M5Stack and embedded projects. Built around the STM32F030 controller, it communicates through the I2C interface and provides 8 configurable I/O expansion ports for digital input/output, ADC input, servo control, and RGB LED control.

Each expansion port can be configured independently, making the EXT.IO2 suitable for projects that need mixed digital signals, analog signal acquisition, PWM servo output, or multi-channel lighting control. The default I2C address is 0x45 and can be configured, allowing multiple EXT.IO2 units to work on the same I2C bus for larger systems.

Features

• 8-channel I/O expansion: adds 8 configurable input/output ports to your project.
• Multiple working modes: supports digital I/O, ADC input, servo control, and RGB LED control.
• STM32F030 controller: provides stable control for expanded I/O functions.
• I2C communication: integrates easily with M5Stack controllers and other I2C host devices.
• Configurable I2C address: supports multiple EXT.IO2 units on the same I2C bus.
• 3.3V I/O level: suitable for low-voltage embedded electronics projects.
• Compact module size: ideal for robotics, automation, lighting control, and DIY hardware builds.

Specifications

Applications

• I/O expansion for M5Stack and embedded systems.
• Servo motor control and PWM output projects.
• RGB LED and multi-channel lighting control.
• Digital signal input/output expansion.
• Analog signal acquisition through ADC input.
• Robotics, automation, and DIY hardware projects.

Product List

FAQ