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The PD Stepper is a single board that combines a NEMA 17 stepper driver, a TMC2209 silent driver chip, an ESP32-S3 microcontroller and closed-loop encoder support. It is powered over USB PD, so one cable replaces the separate power supply, driver and controller most builds need. That makes it far more compact than a stack of breakout boards, and the TMC2209 keeps motion quiet. It suits makers building compact IoT or automation projects who want closed-loop control without wiring a custom electronics stack.
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PD Stepper is a USB PD powered driver and controller for Nema 17 stepper motors. It combines a Trinamic TMC2209 stepper driver and an ESP32-S3 microcontroller on a single board. This replaces the separate microcontroller, driver, power supply and optional encoder a stepper project usually needs.
The board is compact and made to fit on the back of a common Nema 17 motor. It runs from a USB-C connection, so no 12 V or 24 V power brick is needed. With USB PD and the TMC2209, it can drive a stepper motor with up to about 50 W of power.
An onboard AS5600 magnetic rotary position sensor measures absolute angle for precise positioning and closed loop control. The ESP32-S3 provides built-in Wi-Fi and Bluetooth, and works with development tools and libraries such as ESPHome and ESPNow. The project is open-source.
