Step16 Unit with 16-bit Rotary Encoder (GSMR-16)

The Unit Step16 is a 16-position rotary encoder with STM32G031G8U6, displaying real-time 0–F hex values on a 7-segment display. It communicates over I2C with configurable direction, modes, RGB LED colour, and address for multi-device setups.

M5 Stack Step16 Unit with 16-bit Rotary Encoder (GSMR-16) is a 16-position rotary encoder control unit based on the STM32G031G8U6 microcontroller. Its core function is to acquire the BCD value of the rotary encoder in real time and visualise the 0–F hex value through the integrated 7-segment display.

The device communicates via an I2C interface and supports configuration of the rotation increment direction, display operating mode, RGB LED colour, and I2C address, allowing multiple encoder units to be used on the same bus.

Featuring a clean and efficient design, it provides effective physical interaction control and real-time visual feedback, making it ideal for smart interactive devices (e.g., smart-home control panels), control interfaces (e.g., volume adjustment, RGB lighting control, motor speed regulation), and STEAM education hardware prototyping and teaching.

Features

• 16-position BCD rotary encoder
• Integrated numeric display for encoder value
• Adjustable display brightness and operating mode
• Configurable clockwise/counter-clockwise direction
• Programmable RGB LED colour/brightness
• I2C communication with configurable address
• Development Platform
  • UiFlow1
  • UiFlow2
  • Arduino IDE

Specifications

Resources

• Product Documents

Package Contents

• 1 x Unit Step16
• 1 x Grove Cable (20cm)