Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin	-
Microcontroller Core	STC89C52RC / Compatible with 8051 Architecture
Socket Type	40-Pin ZIF (Zero Insertion Force) Socket
Operating Voltage	5V DC
Crystal Oscillator	11.0592 MHz (Onboard)
Reset Mechanism	Manual Reset Button with RC Circuit
Power Indicator	Red LED Power On Status Light
I/O Port Access	All 40 Pins Brought Out to Headers
Programming Interface	Standard ISP Download Header Included
PCB Material	FR-4 Double-Sided Copper Clad
Board Dimensions	75mm x 55mm x 1.6mm

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for learning 8051 assembly

This board is exactly what I needed for my university microcontroller course. The ZIF socket makes swapping chips incredibly easy without worrying about bent pins. It worked straight out of the box with my STC-ISP programmer.

Anonymous

Mar 26, 2026

Rating: 4/5

Great value, minor silkscreen issue

Solid build quality and the pinout is clearly labeled. I noticed one of the port labels was slightly misaligned on the silkscreen, but it doesn't affect functionality. Excellent price point for students.

Anonymous

Mar 21, 2026

Rating: 5/5

Reliable core board

I've used this for several DIY projects involving legacy hardware control. The 11.0592MHz crystal ensures accurate baud rates for serial communication. Highly recommended for embedded beginners.

Anonymous

Mar 16, 2026

Rating: 4/5

Good for prototyping

The headers are well-spaced for breadboard use. I wish it came with a USB-to-TTL converter included, but for the price, the board itself is fantastic. The ZIF socket saves so much time.

Anonymous

Mar 12, 2026

Rating: 5/5

Best budget development board

Very stable performance. I successfully uploaded multiple hex files for my final year project. The reset button is responsive and the power LED is bright enough to see clearly.

Anonymous

Mar 07, 2026

Rating: 5/5

Exceeded expectations

Clean soldering job on all components. No cold joints or debris. It handles 5V logic perfectly and interfaces well with various sensors I tested. A must-have for any 51 MCU enthusiast.

5 FAQ

Q: Can I program this using an Arduino Uno as an ISP programmer?

A: While possible with custom firmware, this board is designed for use with dedicated STC-ISP programmers via the UART/TTL interface. We recommend using a USB-to-TTL adapter for the most reliable flashing experience.

Q: Does it support 3.3V logic levels directly?

A: No, this is a 5V system board. If you need to interface with 3.3V devices, you must use a logic level converter to prevent potential damage to either the MCU or the peripheral device.

Q: Is the schematic available for download?

A: Yes, we provide a PDF version of the schematic and a basic datasheet for the onboard components on the product support page under the 'Downloads' section.

Q: What is the maximum current this board can supply to external components?

A: The onboard regulator and traces are designed for logic-level signaling. Please do not draw more than 20mA per I/O pin and ensure total board consumption stays within safe limits for the USB power source.

Q: Does this board come with the STC89C52 chip pre-installed?

A: Yes, the board typically comes with an STC89C52RC chip already inserted in the ZIF socket. However, please check the specific SKU variation as some options may be sold without the chip.

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