3 PCS STM32F103C8T6 Development Board ARM 32bit MCU Module For Arduino

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3Pcs STM32F103C8T6 Development Board ARM 32-bit MCU Core Module for Arduino Learning BeginnersProduct Overview

Product parameters 
 power supply system:
 of wide voltage input of: 4.5V-36V DC (3.3V ± 1% output of external MP1584EN step-down module required)
logic level compatible   :3.3V/5V TTL(I/O pin withstand voltage 5V)
core performance of :
 processor  :ARM Cortex-M3 @ 72MHz (up to 128MHz overclocked)
  storage capacity :64KB Flash + 20KB SRAM
peripheral resources :
ADC : 2 × 12-bit analog-to-digital converter 
  of communication interface: 3 ×USART/2 ×SPI/2 ×I²C/1 ×CAN 2.0B
 timer  :4 x 16-bit general-purpose timer (support PWM capture)
 of power consumption characteristics of:
operating mode   :36mA
operating temperature :-40°C to +85°C
 the  extension interface:
All 48 leads (2.54mm pitch)
Support Micro USB power supply (5V ± 5%)

Product main pin function 
 IN: DC input positive  voltage (4.5V-36V DC), connected to the wide voltage power supply positive pole (the  is  by the step-down module to 3.3V voltage)
 GND: power supply ground   (≥ 0.5mm ² conductor low impedance grounding required)
 VCC: 3.3V main power supply   (maximum current 200mA), connected to step-down module output
 PA13/SWDIO: SWD debug data cable  (ST-Link SWDIO)
 PA14/SWCLK:   of SWD debug clock line (ST-Link SWCLK)
PA9/USART1_TX :   the serial port to send (default download interface)
PA10/USART1_RX : Serial receive  
 PB6/I2C1_SCL:   of I²C clock line (4.7kΩ pull-up required)
 PB7/I2C1_SDA:   of I²C data line (4.7kΩ pull-up required)
PA0-7/ADC1 : 12-bit analog input   (0-3.3V range)
 

Special Features

• 【High-Performance Industrial Microcontroller Board】 This STM32F103C8T6 development board features a powerful ARM Cortex-M3 processor running at up to 128MHz, with 64KB Flash and 20KB SRAM for efficient embedded applications. It supports wide voltage input (4.5V–36V DC) and is compatible with both 3.3V and 5V TTL logic levels, making it Suitable for industrial control systems, motor drivers, and CAN bus projects.
• 【Advanced Peripheral Integration for Versatile Use】 Equipped with 3 USARTs, 2 SPIs, 2 I²Cs, and 1 CAN 2.0B interface, this microcontroller board offers rich peripheral support for complex communication tasks. It also includes 4 x 16-bit timers with PWM capture, Suitable for real-time control and sensor interfacing in embedded learning and automation projects.
• 【Wide Operating Temperature Range for Reliable Performance】 Designed for harsh s, this Reliable development board operates reliably from -40°C to +85°C. Its low power consumption (36mA at 72MHz) and ultra-low standby mode (20µA) ensure energy efficiency and long-term stability in demanding applications like robotics and industrial automation.
• 【Easy-to-Use Development Platform with Full Compatibility】 Fully compatible with Keil and IAR development s, this board allows seamless integration into existing workflows. It supports Micro USB programming and includes onboard 8MHz crystal and reset circuitry for quick setup. The 48-pin 2.54mm pitch expansion interface provides flexibility for custom hardware extensions.
• 【Robust Design with Enhanced Signal Integrity Features】 Built with high-quality components, this microcontroller board includes 12-bit ADCs, 4.7kΩ pull-up resistors for I²C, and CAN bus termination resistors to reduce signal interference. It also supports precision ADC filtering and voltage reference options for accurate analog measurements in industrial and embedded systems.

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