STM32-H103 STM32-H103 STM32-H103
Header board for STM32F103RBT6 CORTEX-M3 microcontroller

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  • GD32-H103
  • STM32-H103
Price15.95 EUR
10 - 49 pcs15.15 EUR
50 - 10000 pcs14.36 EUR
In Stock

The ARM Cortex-M3 processor is the latest generation of ARM processors for embedded systems. It has been developed to provide a low-cost platform that meets the needs of MCU implementation, with a reduced pin count and low power consumption, while delivering an outstanding computational performance and an advanced system response to interrupts. The ARM Cortex-M3 32-bit RISC processor features exceptional code-efficiency, delivering the high-performance expected from an ARM core in a memory size usually associated with 8- and 16-bit devices.

The board has the medium-density STM32F103 inside with an embedded ARM core which is compatible with all ARM tools and software. It combines the high performance ARM Cortex-M3 CPU with an extensive range of peripheral functions and enhanced I/O capabilities. STM32-H103 is a low-cost development board for the new ST Cortex-M3 based microcontrollers STM32F103RBT6. This board is the perfect solution for USB peripherals development. All microcontroller ports are available on extension connectors.

New version with pin to pin compatible GD32F103RBT6 is now available.


  • MCU: STM32F103RBT6 or GD32F103RBT6 Cortex M3™ with 128K Bytes Program Flash, 20K Bytes RAM, USB, CAN, x2 I2C, x2 ADC 12 bit, x3 UART, x2 SPI, x3 TIMERS, up to 72Mhz operation
  • Standard JTAG connector with ARM 2x10 pin layout for programming/debugging with ARM-JTAG
  • USB connector
  • User button
  • RESET button
  • Status LED
  • Power supply LED
  • On board voltage regulator 3.3V with up to 800mA current
    single power supply: takes power from USB port or extension connector pin
  • 8 Mhz crystal oscillator
  • 32768 Hz crystal and RTC backup battery connector
  • Extension headers for all uC ports
  • PCB: FR-4, 1.5 mm (0,062"), soldermask, silkscreen component print
  • Dimensions: 61x 34mm (2.4 x 1.3")
  • Distance between the exntension connectors: 25.4 mm (1")