Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller Model | STM32F103C8T6 |
| CPU Architecture | ARM Cortex-M3 32-bit RISC |
| Flash Memory | 64 KB |
| SRAM | 20 KB |
| Maximum Frequency | 72 MHz |
| Operating Voltage | 3.3V |
| Input Voltage Range | 3.3V - 5V (VIN) |
| GPIO Pins | 37 Available Pins |
| Board Dimensions | 53mm x 23mm x 10mm |
| Programming Interface | SWD / JTAG / Serial Bootloader |
Anonymous
Mar 15, 2026
Rating: 5/5
Arduino IDE compatible
I was able to upload Arduino sketches using the STM32duino bootloader. It opens up a lot of possibilities for projects that need more power than an Arduino Nano. Highly recommended.
Anonymous
Feb 20, 2026
Rating: 5/5
Perfect for learning embedded systems
This board is exactly what I needed to start learning ARM Cortex-M3 programming. It works flawlessly with the ST-Link V2 programmer. The size is compact and fits well on a breadboard.
Anonymous
Feb 13, 2026
Rating: 3/5
Pinout labeling could be better
The board functions correctly, but the silk screen labeling on the PCB is a bit small and hard to read. I had to refer to the online pinout diagram frequently. Good for experienced users.
Anonymous
Jan 31, 2026
Rating: 5/5
Reliable hardware for IoT projects
Using this for a home automation sensor node. It has been running stable for weeks without any issues. The power consumption is low enough for my battery-powered setup.
Anonymous
Jan 22, 2026
Rating: 4/5
Good value but headers not included
The board itself works great and the price is unbeatable. Just be aware that you need to solder the pin headers yourself unless you buy the version that includes them. Otherwise, no complaints.
Q: Is this compatible with 5V logic levels?
A: Most GPIO pins on the STM32F103C8T6 are 5V tolerant, but the operating voltage is 3.3V. It is safe to interface with 5V modules, but ensure you do not supply 5V to the 3.3V pin.
Q: What is the maximum current per GPIO pin?
A: Please do not exceed 25mA per GPIO pin to avoid damaging the microcontroller. The total current sourced or sunk by all ports should also remain within the datasheet limits.
Q: What programmer do I need to upload code?
A: We recommend using an ST-Link V2 programmer for the best experience. You can also use a USB-to-TTL adapter if the bootloader is pre-installed.
Q: Is the bootloader pre-installed on this board?
A: Some batches come with the bootloader pre-installed, while others do not. If you plan to use the serial upload method, we suggest verifying this or preparing to flash the bootloader via SWD.
Q: Does this board come with pin headers pre-soldered?
A: This typically depends on the specific option selected at checkout. Most standard listings ship without headers to allow for custom mounting, but please check the product variation details.
4-Leg Chain Rigging Set - Alloy Steel Lifting Tool (1-200 Tons) with Multi-Leg Electromagnetic Chuck
$52.50
Commercial 1.8/2.2m Food Warmer Cabinet for Fried Chicken and Burger Shops, French Fry Heating Unit, 1.5m Two-Way Pickup Display Case
$3,573.50
Commercial Electric Heated Stainless Steel Fast Food Serving Counter Soup Warmer Buffet Cart
$842.00
Natural Crystal White Azeztulite Loose Beads with Rainbow Luster for DIY Necklaces, Bracelets, and Jewelry Making
$5.54
Ai Zao Fang Six-Cavity Oval Totem Handmade Soap Silicone Mold - Yields Approx. 115g per Bar
$17.70
Zunjue Wire-Bound 8K Watercolor Notebook 300g Watercolor Sketchbook Loose-Leaf Portable 16K Water-Soluble Colored Pencil Notebook Coil-Bound 32K Medium Coarse Fine Grain 200g Kids Students A4 Watercolor Notebook Plein Air Sketch Drawing Book
$7.65
Yuan Dynasty Calligraphy by Zhao Mengfu - Small Regular Script Diamond Sutra Brush Tracing Long Scroll Copybook, Original Version, Wholesale and Customization Available
$15.00
Kodak Photo Printing Service - High-Definition Prints from Your Phone with Lamination and Album Binding
$12.47
Shenzhen Custom Storefront Signage and Lightbox Installation - Illuminated Letters and Shop Plaques
$50.00
Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems
$329.00
Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy
$38.00
Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students
$4.25
French Imported Arches Watercolor Paper - Handmade 100% Cotton, 300g-850g, Medium/Rough Grain, Extra-Large Rolls and Sheets (4K, Full, Half, Quarter)
$33.10
Commercial Countertop Food Warmer Display Case - For Fried Chicken, Burgers, Egg Tarts, Pies, Youtiao, and Shaobing
$720.00
Integrated Hospital Wastewater Treatment Unit Underground Integrated Sanitary System Sewage Discharge Unit Eco-Friendly Wastewater
$10,000.00
Double Loop Lifting Chain with Rebar Bottom Hook - Manganese Steel Sling for Heavy Duty Rigging
$29.00
Screw Press Screw Sludge Dewatering Machine Sewage Treatment Equipment Rotary Type
$17,600.00
Imported INA Needle Roller Bearings: 9NA, NA 2940, 4R22, 4924, 4926, 4928, 4930-XL A
$109.00
High-Purity Nitrogen Generator for Reflow Soldering and Wave Soldering - Efficient Energy-Saving Transformer Protection for Electronics Factories
$46,100.00
Baohong Watercolor Paper 300g Wood Pulp Medium Grain A3 Full Sheet, Coarse/ Fine Grain Academy Grade 4K, A2, A1, A4 Artist Paper 2K for Art Students
$3.40
Manyue Handmade Natural Soy Wax and White Beeswax for DIY Low-Temperature Scented Candles – Includes Candle Cups and Jelly Wax
$5.46
Car Tire Stone Removal Tool Hook and Rake for Cleaning Tread Debris
$4.53
Caiyan Blending Sticks for Oil Pastels and Sketching, Dual-Tip Soft Wax Crayon Tools for Art Students, DIY Smudging, Highlighting, and Color Mixing
$8.20
Aizaofang Six-Cavity Leaf Stamp Silicone Mold for DIY Handmade Soap, Approx. 108g per Bar
$16.90
Sea to Summit Outdoor Rafting Waterproof Dry Bag Storage Backpack for Clothes, Large River Waterproof Bag 420D
$83.30
Natural 5A Gold Rutilated Quartz Loose Beads - DIY Crystal Jewelry Making Supplies, Round Single Beads
$2.56
Rubber Cable Raceway and Speed Bump with Movable Cover
$31.44
Manufacturer Shaftless Conveyor Uniform Transport No Backflow Customizable Sizes Two-Year Warranty
$7,455.00
Curved Commercial Steamed Bun Machine - Small Glass Display Cabinet for Convenience Stores, Mantou Warmer, Baozi Steamer, Corn Warmer
$338.00
U-Shaped Rubber Sealing Strip, N-Edge Rubber Strip, Edge Wrapping Strip, Iron Sheet Decorative Strip, Rubber Edge Sealing Strip
$102.00
![[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars](https://www.gosteppe.com/cache/medium/product/3877/legacy-main-eca7a3fa750966e5dca86bbf.webp)
![[Puzhong Brand Store] 51 Microcontroller Learning Board Development Board Jiangxie Tech STC89C52 DIY Kit](https://www.gosteppe.com/cache/medium/product/1885/legacy-main-0474e8371f211cc54ab452b5.webp)
![[Corrosion-Resistant] DFRobot Capacitive Soil Moisture Sensor Module Dry/Wet Detection](https://www.gosteppe.com/cache/medium/product/3259/legacy-main-2f0d3454b36b32391d263648.webp)
