Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin	-
Microcontroller Model	STM32F103C8T6
Architecture	ARM Cortex-M3 32-bit RISC
Operating Frequency	Up to 72 MHz
Flash Memory	64 KB
SRAM	20 KB
Operating Voltage	3.3V (5V tolerant I/O)
Digital I/O Pins	37 GPIO pins
Communication Interfaces	USART, SPI, I2C, CAN, USB
Analog Inputs	10 channels, 12-bit ADC
Board Dimensions	53mm x 23mm x 10mm

6 reviews

Anonymous

Mar 17, 2026

Rating: 5/5

Reliable for prototyping sensors

I used this to prototype a temperature and humidity logging system. The ADC accuracy is good, and the low power modes are easy to configure. Very happy with the performance.

Anonymous

Mar 08, 2026

Rating: 4/5

Good board, needs a programmer

Just a reminder for newbies: this board does not have a built-in USB-to-serial programmer like some other dev boards. You will need an ST-Link or similar debugger to flash code initially. Once set up, it works great.

Anonymous

Mar 07, 2026

Rating: 4/5

Solid hardware, minor documentation gaps

The build quality is excellent and the chip runs stable at 72MHz. I deducted one star because the included PDF manual was a bit sparse, but online communities have plenty of resources to fill the gap.

Anonymous

Mar 06, 2026

Rating: 5/5

Great upgrade from Arduino Uno

If you are hitting the limits of an AVR-based Arduino, this is the logical next step. Much faster processing speed and more memory. The 3.3V logic took a little getting used to, but it's standard for this chip.

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect for learning ARM architecture

This board is exactly what I needed to start my journey with STM32. The pinout is clearly labeled, and it works flawlessly with the Arduino IDE and STM32CubeIDE. Great value for beginners.

Anonymous

Mar 03, 2026

Rating: 5/5

Bought 10 for our student workshop

We purchased these for a university robotics course. Every single board worked out of the box. The price point allows students to keep the board after the class ends. Highly recommended for education.

5 FAQ

Q: Can I power this board directly via the 5V pin?

A: Yes, the board has an onboard LDO regulator. You can supply 5V to the 5V pin, and it will regulate it down to 3.3V for the microcontroller. However, do not exceed 5.5V.

Q: Is this compatible with the Arduino IDE?

A: Absolutely. You can use the Arduino IDE by installing the 'STM32 Boards by STMicroelectronics' package via the Board Manager. Many existing Arduino libraries work with minor modifications.

Q: Does this support MicroPython?

A: Yes, the STM32F103C8T6 is supported by MicroPython. You will need to flash the appropriate .dfu firmware file using a tool like dfu-util.

Q: Does this board come with a USB cable or programmer?

A: No, this package includes only the core board. You will need to purchase an ST-Link V2 programmer or a USB-to-TTL converter separately to upload code.

Q: What is the maximum current draw for the 3.3V output pin?

A: The onboard regulator can typically supply up to 200mA total for the board and external peripherals. For high-power devices, we recommend using an external power source.

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