Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | STC32G12K128 (32-bit 8051 Core) |
| Operating Voltage | 3.3V / 5.0V Selectable |
| Flash Memory | 128 KB |
| SRAM | 12 KB + 256 Bytes |
| Interface | USB Type-C for Download & Debugging |
| GPIO Pins | Up to 40 Programmable I/O Ports |
| ADC Resolution | 12-bit High-Speed ADC |
| Clock Frequency | Up to 48 MHz Internal Oscillator |
| Board Dimensions | 55mm x 38mm |
| Package Includes | 1x Core Board, 1x USB Cable, Pin Headers |
Anonymous
Mar 31, 2026
Rating: 5/5
Robust industrial control potential
I used this for a small motor control prototype. The PWM resolution and speed are impressive for this price point. The build quality of the PCB is solid, and the soldering points are well-defined. Highly recommended for rapid prototyping.
Anonymous
Mar 24, 2026
Rating: 4/5
Good specs, compact size
The form factor is very compact, which is great for fitting into small enclosures. I wish it came with a few more example codes in the package, but the community forums have plenty of resources. The 128KB flash is plenty for most logic tasks.
Anonymous
Mar 17, 2026
Rating: 5/5
Seamless IDE integration
Setup with the STC-ISP software was instant on Windows 10. Compilation times are fast, and debugging via the serial port is straightforward. It's a reliable core board for teaching embedded systems concepts.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for upgrading from 8-bit projects
This board is fantastic for anyone looking to move from standard 8051 chips to the newer 32-bit STC series. The USB download feature works flawlessly without needing an external programmer. Documentation was easy to find and the pinout is clearly marked.
Anonymous
Mar 09, 2026
Rating: 5/5
Best bang for your buck
Compared to other development boards in this category, the STC32G12K128 offers superior performance per dollar. The internal oscillator accuracy is good enough for my communication protocols. Shipping was fast and packaging protected the board well.
Anonymous
Mar 04, 2026
Rating: 4/5
Great value but needs careful voltage handling
Excellent learning board for the price. The 12-bit ADC is a nice upgrade for sensor readings. Just be careful when selecting between 3.3V and 5V modes; read the manual first to avoid damaging peripherals. Overall, very satisfied with the performance.
Q: Are the pin headers pre-soldered?
A: The standard package usually includes the board with unsoldered pin headers to allow for flexible mounting options. You will need to solder them yourself or use female-to-female jumper wires if testing on a breadboard.
Q: What is the maximum current output per GPIO pin?
A: Each GPIO pin can typically source or sink up to 20mA, but the total current for the entire chip should not exceed specified limits in the datasheet. We recommend using external drivers for high-power loads.
Q: Can I power this board via the VIN pin with 9V?
A: Yes, the board includes an onboard LDO regulator that accepts input voltages typically ranging from 5V to 12V on the VIN pin, converting it to the required operating voltage for the MCU.
Q: Does this board support Arduino IDE?
A: This board is primarily designed for use with the official STC-ISP software and Keil C51 compiler. While some community ports exist for Arduino-like environments, native support is not guaranteed by the manufacturer.
Q: Is a separate debugger hardware required?
A: No, the board features a built-in USB download and debugging interface. You only need a standard USB cable to program the microcontroller and monitor serial output.
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