Attributes

Brand	-
Category	Electronic Components / Maker DIY / Development Boards & Control Boards
Origin	-
Microcontroller Unit	STM32F103C8T6
CPU Architecture	ARM Cortex-M3
Max Frequency	72 MHz
Flash Memory	64 KB
SRAM	20 KB
Ethernet Chip	W5500
Interface Protocol	SPI
Operating Voltage	3.3V
Power Supply	5V via Micro USB
PCB Dimensions	53mm x 23mm

5 reviews

Anonymous

Apr 03, 2026

Rating: 5/5

Great Value

Cheaper than buying the MCU and Ethernet module separately. Saves space on my prototype PCB too. Highly recommended for students.

Anonymous

Mar 19, 2026

Rating: 4/5

Solid Board

Good quality construction and the Ethernet speed is reliable. The only downside is the pinout labeling is a bit small to read without magnification.

Anonymous

Mar 12, 2026

Rating: 3/5

Documentation Needed

Board works but examples are scarce. Had to dig through forums to find the right library for the W5500 SPI configuration.

Anonymous

Feb 25, 2026

Rating: 5/5

Perfect for IoT

The W5500 module works seamlessly with the STM32. I was able to get TCP connectivity up and running within an hour. Great board for networked embedded projects.

Anonymous

Feb 03, 2026

Rating: 5/5

Fast Ethernet

TCP/IP stack handles well even with multiple connections. Stable performance over long uptime tests. Very satisfied with this purchase.

5 FAQ

Q: Can I use 5V sensors?

A: No, the logic level is 3.3V. Using 5V sensors directly may damage the MCU. Please use a level shifter.

Q: Is SWD header included?

A: Yes, there is a standard 4-pin SWD header available for debugging and programming with ST-Link.

Q: What is the SPI speed?

A: The SPI interface can operate up to 80MHz, allowing for fast data transfer with the W5500 chip.

Q: Does this support Arduino IDE?

A: Yes, you can use the STM32duino package to program this board via the Arduino IDE.

Q: Is PoE supported?

A: No, this board does not support Power over Ethernet. You must power it via the Micro USB port or VIN pin.

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