Microcontroller

32-bit ARM Cortex-M3 (STM32F103VET6)

Operating Voltage

3.3V (Logic Level)

Input Voltage

12V - 24V (Recommended for powering the board)

Flash Memory

512KB

SRAM

64KB

Clock Speed

72MHz

Display

LCD12864 (128x64 pixels, monochrome graphical screen)

Display Interface

SPI or Parallel (configurable)

SD Card Support

Yes (for firmware updates and file storage)

Communication

USB, UART, SPI, I2C

Motor Drivers

Supports up to 5 stepper motors (via external drivers)

Endstop Connectors

Supports X, Y, Z, and additional endstops

Thermistor Inputs

Supports heated bed and hotend temperature monitoring

Fan Control

PWM-controlled fan outputs

Firmware Compatibility

Marlin, Klipper, Repetier, and other open-source 3D printer firmware

Expansion Ports

GPIO pins for additional peripherals or sensors

Dimensions

Approx. 100mm x 80mm (board size)

Mounting Holes

Standard 3D printer control board mounting

Open-Source

Yes (Hardware and firmware support)