A
Anonymous
Apr 14, 2026
Rating: 4/5
Good for learning
Great board but the pinout silkscreen is a bit small. Otherwise perfect for STM32 development.
Description
STM32F103C8T6 Serial ARM Development Board RS485 Network CAN Ethernet Port W5500 Converter Board
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | STM32F103C8T6 |
| CPU Core | ARM Cortex-M3 32-bit |
| Max Clock Frequency | 72 MHz |
| Flash Memory | 64 KB |
| SRAM | 20 KB |
| Operating Voltage | 3.3V |
| Input Power | 5V DC via Micro USB |
| Ethernet Controller | W5500 Hardwired TCP/IP |
| Communication Interfaces | USART, SPI, I2C, CAN, RS485 |
| Board Dimensions | 55mm x 23mm x 12mm |
5 reviews
A
Anonymous
Apr 06, 2026
Rating: 5/5
Compact and Powerful
Fits all my needs for CAN bus testing in automotive projects. Highly recommend for engineers.
A
Anonymous
Mar 31, 2026
Rating: 5/5
Solid Ethernet Performance
The W5500 integration works flawlessly. Used it for a home automation hub and connectivity is stable.
A
Anonymous
Mar 24, 2026
Rating: 4/5
Needs ST-Link
Board is good but remember you need a separate programmer for flashing. Not included in box.
A
Anonymous
Jan 22, 2026
Rating: 5/5
RS485 works great
Tested Modbus RTU successfully. Very stable connection over long distances in my workshop.
5 FAQ
Q: Can I use 5V sensors directly?
A: No, GPIO pins are 3.3V logic. Please use level shifters for 5V components.
Q: Does it come with an ST-Link programmer?
A: No, the programmer is sold separately. You will need an ST-Link V2 or similar.
Q: Is this compatible with Arduino IDE?
A: Yes, this board is supported via the STM32duino core package.
Q: What library for Ethernet?
A: We recommend the Ethernet_W5500 library for best compatibility with this chip.
Q: Is CAN bus terminated?
A: No, external termination resistors are required on the bus line for proper communication.
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