STMicroelectronics STEVAL-3DP001V1

Overview

STEVAL-3DP001V1 from STMicroelectronics is a fully integrated, open-source 3D printer control board based on the STM32F401VE ARM Cortex-M4 microcontroller and six STSPIN L6474H stepper motor drivers. It supports up to 3 extruders (12 V, ≤8 A), multi-zone heated bed (12 V or 24 V, ≤20 A), 6-axis motion control, embedded WiFi (SPWF01SA), USB virtual COM, microSD, and ST-LINK v2 debugger - designed for Delta and Cartesian printers.

For engineers reviewing the STEVAL-3DP001V1 datasheet, STEVAL-3DP001V1 pinout, STEVAL-3DP001V1 application, or STEVAL-3DP001V1 equivalent, this board enables rapid prototyping of production-grade 3D printer firmware, evaluation of multi-motor coordination with digital end-stop microstepping, thermal management of dual-heated zones, and wireless host interface integration via embedded web server.

Technical Context

The board implements a hierarchical real-time control architecture: the STM32F401VE runs closed-loop motion planning and thermal regulation firmware, while six L6474H drivers execute per-axis current-controlled microstepping (up to 3 A_r.m.s.) with adaptive decay mode, overcurrent/thermal fault reporting, and SPI-daisy-chained configuration. All motor outputs are independently enabled and monitored via dedicated FLAG pins.

Thermal subsystems use three independent NTC thermistor inputs and high-side power MOSFETs (STL220N3LLH7) rated for 20 A continuous heating load per zone; extruder fan control employs STL8N10F7 MOSFETs with PWM dimming; IR end-stop detection and optical limit switches are supported through configurable GPIO banks with ESD protection (ESDA6V1-5W6).

Key Specifications

Availability

STEVAL-3DP001V1 is available at Aetrix Electronics and suitable for 3D printer OEM development, industrial additive manufacturing system integration, and academic rapid prototyping requiring stable component supply, long-lifecycle support, and open-hardware compatibility.

Supply support for STEVAL-3DP001V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference platforms that combine ST silicon, certified firmware, and open design files to accelerate time-to-prototype for complex embedded systems like motion-controlled industrial equipment.

FAQ

Does STEVAL-3DP001V1 support custom firmware development?

Yes. The board ships with open-source firmware compatible with Marlin and Repetier, and full source code, schematics, and PCB layout files are publicly available on ST's official website. The STM32F401VE is programmable via SWD or DFU over USB, and the L6474H drivers expose all registers via SPI for low-level tuning of current profiles, decay modes, and microstep resolution.

What is the maximum motor current per axis, and how is it configured?

Each L6474H driver supports up to 3 A_r.m.s. output current, set by an external sense resistor (R_sense = 0.1 Ω typical) and digitally adjusted via the KVAL_HOLD/KVAL_RUN registers. Current is measured in real time using the internal ADC and protected by automatic shutdown on overcurrent or thermal fault - no external current-sense amplifiers required.

Can the heated bed operate at both 12 V and 24 V simultaneously?

No - the board's bed power stage accepts either 12 V or 24 V input (selected via jumper J8), but not both concurrently. All three heating zones share the same input rail; however, each zone is independently switched and temperature-regulated using separate thermistor inputs and PWM-controlled STL220N3LLH7 MOSFETs.

Is the embedded WiFi module field-upgradable?

Yes. The SPWF01SA module supports over-the-air (OTA) firmware updates via its built-in web server or serial AT command interface. Its GPIO[0]–GPIO[15] pins are exposed on header J19, enabling custom sensor integration or peripheral expansion without modifying the baseboard hardware.