The ESP32-powered magnetic loop controller. 

The ESP32 enables Wi-Fi connectivity for browser-based stepper motor control, allowing precise tuning with both fast and slow forward/backward movements. An auto-stop feature prevents the motor from exceeding its limits, ensuring safe operation. Positioning is handled by a light barrier system, which accurately tracks and counts the current position. The interface includes direct frequency jump buttons (e.g., [1820], [1860], [1900], [3520], [3560], [3600], [3650]) for quick access to specific operating frequencies.

The Arduino software is fully functional, and the mechanical components were designed in Onshape and 3D-printed. This system supports a 2-turn magnetic loop antenna with a 2-meter diameter, optimized for 80m and 160m bands.

This system provides precise control of a magnetic loop antenna using a stepper motor. The interface allows users to move the loop forward or backward, make single steps, or stop the motor entirely. A key feature is the ability to enter a specific position, enabling precise tuning of the antenna to the desired frequency. The current position is continuously displayed on the web interface or app, ensuring real-time feedback. The motor is equipped with limit switches for safety, preventing movement beyond the defined range.

Next step: assembling....