Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Brand | Puzhong |
| Model Number | STC89C52-Upgrade-V25 |
| Microcontroller Unit | STC89C52RC |
| Clock Frequency | 11.0592 MHz |
| Power Supply | USB 5V or DC 9V |
| Display Interface | 8-digit LED Display |
| Communication Ports | UART, I2C, SPI |
| Input Components | 4x4 Matrix Keypad, Independent Buttons |
| Programmer Interface | On-board USB-TTL (CH340) |
| Package Contents | Board, USB Cable, Jumper Wires, CD with Tutorials |
Anonymous
Mar 29, 2026
Rating: 4/5
Great value but manual could be better
The hardware quality is solid for the price. The LEDs are bright and the buttons have a nice tactile feel. However, the included PDF manual has some translation errors. Fortunately, there are many community resources available online.
Anonymous
Mar 26, 2026
Rating: 5/5
Excellent educational tool for my son
Bought this for my high school son's electronics project. He was able to blink an LED within an hour of unboxing. The upgrade to version 25 seems to have fixed the power stability issues mentioned in older reviews.
Anonymous
Mar 22, 2026
Rating: 4/5
Good starter kit with minor quirks
Overall a great purchase. The examples provided cover most basic functions. One of the segment displays was slightly dimmer than the others, but it doesn't affect functionality. Customer support was responsive when I asked about driver installation.
Anonymous
Mar 17, 2026
Rating: 5/5
Reliable for rapid prototyping
Even as an experienced developer, I find this board useful for quick logic tests without setting up a complex IDE environment. The direct USB programming capability is a huge time saver compared to older parallel port programmers.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for beginners learning 8051 architecture
This board is exactly what I needed to get started with embedded systems. The on-board programmer works flawlessly with Keil and STC-ISP software. All peripherals like the LCD and keypad are pre-wired, saving hours of debugging.
Anonymous
Mar 16, 2026
Rating: 5/5
Robust build quality
I have dropped this board twice accidentally, and it still functions perfectly. The soldering joints are clean, and the silkscreen labeling is very clear, making it easy to identify pins for external sensors.
Q: What voltage should I use if not powering via USB?
A: If you are using the DC power jack, we recommend a stable 9V DC adapter. The onboard regulator will step this down safely for the MCU and peripherals.
Q: Can I connect external sensors via the GPIO pins?
A: Absolutely. The board exposes all unused GPIO pins on the expansion headers, allowing you to connect various sensors, modules, and displays easily.
Q: Does this board come with the necessary USB cable?
A: Yes, the package includes a standard Mini-USB cable for both power supply and program downloading.
Q: Is this compatible with Mac OS for programming?
A: The hardware is compatible, but you will need to install the CH340 drivers manually. The STC-ISP software primarily runs on Windows, so Mac users often use a virtual machine or alternative cross-platform compilers.
Q: Are the source codes for the examples included?
A: Yes, the included CD and our website download section contain full C language source code for all demonstration projects featured in the user manual.
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