This advanced stepper motor controller has been designed by MiguelDC specifically for photographers specializing in extreme macro photography, focus stacking, and scientific imaging. Thanks to its high-precision architecture, it enables fully controlled micrometric movements, producing perfect image sequences even at very high magnifications.

Built on state-of-the-art technology, the system combines the processing power of the Arduino Nano 33 BLE with an intuitive 320x240-pixel ESP32 touchscreen, providing a user experience that is simple, fast, and extremely precise.

Main Features

Arduino Nano 33 BLE-Based Controller

At the core of the system is a powerful Arduino Nano 33 BLE microcontroller, capable of handling complex calculations and high-precision movements with complete reliability. Its modern architecture ensures stability, fast response times, and future expansion possibilities.

High-Resolution ESP32 Touchscreen

The graphical interface runs on a 320x240-pixel ESP32 touchscreen, offering comfortable and intuitive operation. All motion, configuration, and calculation parameters can be adjusted directly from the display without the need for a computer.

Compatible with NEMA17 Motors

Designed to work with NEMA17 stepper motors, widely used in precision positioning systems for macro photography. Its compatibility allows integration into motorized rails, linear stages, and custom-built systems.

UART-Configurable TMC2209 Driver

The controller incorporates the renowned TMC2209 driver with UART communication, enabling electronic configuration of advanced parameters such as motor current, microstepping, and operating modes. This results in extremely smooth, precise, and silent movements.

Automatic Focus Stacking Calculations

The system automatically calculates the required number of images, step size between shots, and total travel distance based on user-defined parameters, greatly simplifying focus stacking session preparation.

Lens-Based Step Size Calculator

Includes a practical calculator that automatically determines the optimal step size according to the magnification and characteristics of the lens being used. This maximizes sharpness and fully exploits the optical potential of the equipment.

Configurable Vibration Sensor

To ensure maximum image quality, the controller incorporates a configurable vibration detection system. Users can define thresholds and stabilization times to ensure each photograph is captured only when the system is completely stable.

Electronic Limit Switches

Electronic limit switches protect the system against excessive travel and enable automatic homing and positioning procedures, improving both safety and repeatability.

Ultra-Smooth and Silent Motion

The combination of the TMC2209 driver and advanced motor configuration provides virtually imperceptible movements, eliminating vibrations and minimizing any negative impact on final image quality.

Advanced Microstepping Configuration

Users can select different microstepping levels to adapt movement resolution to each situation, achieving extremely small displacements when working at high magnifications.

Intuitive Graphical Interface

The touchscreen provides clear and simple navigation through visual menus, allowing users to configure sequences, review calculations, and monitor system status quickly and conveniently.

Smartphone Interface

A dedicated smartphone application with Bluetooth connectivity allows the rail to be controlled directly from a mobile device. The app also provides an audible notification on the phone when the image capture sequence has been completed.

Designed for Maximum Precision

When working at high magnifications, displacements of only a few microns can make the difference between a perfect image and an unusable sequence. For this reason, every component of the controller has been selected to provide maximum precision, repeatability, and mechanical stability.

Whether for extreme macro photography, scientific photography, entomology, mineralogy, or any application requiring high-precision linear movements, this controller provides a professional solution capable of achieving exceptional results.

Key Advantages

• Greater precision in focus stacking sequences.

• Fast and intuitive configuration.

• Compatibility with NEMA17-based linear systems.

• Ultra-silent operation.

• Protection through electronic limit switches.

• Reduction of vibrations during image capture.

• Automatic calculations to optimize workflow.

• Ideal for extreme macro photography and scientific applications.

Take your focus stacks to the next level with a platform specifically designed to achieve maximum detail, maximum sharpness, and maximum precision.