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STM32 Arduino Compatible Development board ARM Cortex-M3


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Model : RKI-1155
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The ARM Cortex-M3 processor 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 outstanding computational performance and an advanced system response to interrupts. The ARM Cortex-M3 32-bit RISC processor features exceptional code efficiency, delivering high performance which is expected from an ARM core in the memory size usually associated with 8-bit and 16-bit devices.

The STM32F103 Performance Line family has an embedded ARM core and is therefore 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. This is a good start-up board for learning the new ST Cortex-M3 based microcontrollers STM32F103C8T6. The headers with all microcontrollers port output allows you to easily implement your own experiments and add-ons.



  • STM32F103C8T6 ARM 32-bit 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 2x10 pin ARM JTAG connector with Reset button
  • Arduino compatible 
  • The onboard crystal 32.768KHZ and 8MHZ
  • On-board voltage regulator 3.3V with up to 800mA current AMS1117-3.3
  • USB connector with USB-UART onboard
  • Supports USB power supply
  • Status LED / Power supply LED
  • 8 MHz crystal / 32768 Hz crystal and RTC backup battery connector
  • Extension headers for all uC ports


Chip Features

  • ARM 32-bit Cortex™-M3 CPU Core
  • 72 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access
  • Single-cycle multiplication and hardware division


  • 128 Kbytes of Flash memory
  • 20 Kbytes of SRAM

Clock, reset and supply management

  • 2.0 to 3.6 V application supply and I/Os
  • POR, PDR, and programmable voltage detector (PVD)
  • 4-to-16 MHz crystal oscillator
  • Internal 8 MHz factory-trimmed RC
  • Internal 40 kHz RC
  • PLL for CPU clock
  • 32 kHz oscillator for RTC with calibration

Low power

  • Sleep, Stop and Standby modes
  • VBAT supply for RTC and backup registers

2 x 12-bit, 1 μs A/D converters (up to 16 channels)

  • Conversion range: 0 to 3.6 V
  • Dual-sample and hold capability
  • Temperature sensor


  • 7-channel DMA controller
  • Peripherals supported: timers, ADC, SPIs, I2Cs and USARTs
  • Up to 80 fast I/O ports
  • 26/37/51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

Debug mode

  • Serial wire debug (SWD) & JTAG interfaces

7 timers

  • Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
    16-bit, motor control PWM timer with dead-time generation and emergency stop
  • 2 watchdog timers (Independent and Window)
  • SysTick timer 24-bit downcounter

Up to 9 communication interfaces

  • Up to 2 x I2C interfaces (SMBus/PMBus)
  • Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
  • Up to 2 SPIs (18 Mbit/s)
  • CAN interface (2.0B Active)
  • USB 2.0 full-speed interface

CRC calculation unit, 96-bit unique ID








  • Model : RKI-1155

STM32 Arduino Compatible Development board ARM Cortex-M3
Rs. 850 In Stock
The ARM Cortex-M3 processor has been developed to provide a low-cost platform that meets the needs of MCU implementation, with a reduced pin count and low power c
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