宋元浩

STC51 core board

Overview

This project uses STC89C52RC, the smallest system board designed for the main MCU, which is convenient for beginners to use and has simple peripheral circuits.

Use CH340E as a USB to TTL converter and design a one-click download circuit to achieve power-off reset without plugging or unplugging.

The main power supply part has overcurrent and overvoltage protection to effectively prevent the MCU from burning out.

Design Files

BOM download

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-05-09 11:15:04

About the SetMode function in the display driver under WinCE
In the display driver under WinCE, there is a DDGPE::SetMode (int modeId, HPALETTE *palette) function modeId: used to set the current display mode, such as: 640*480, 800*480, etc. I would like to ask
ST accelerometer (LIS3DH) basics part 3 - single click, double click
The LIS3DH chip integrates the single-click and double-click functions, which provides convenience for many applications. For example, on wearable devices, it not only reduces the challenges of button
【EE Recruitment】Donate your idle items for free
It's time to welcome the new year again. Do you remember last year's "treasure hunt"? That's right, it's treasure hunt. You dare to dig, I dare to give. Treasure hunt activities will become EEWORLD's
Electronic Design Basics
[i=s]This post was last edited by paulhyde on 2014-9-15 04:10[/i] Some basic knowledge about the competition
Using wireless transceiver modules in smart homes
[align=left][size=14px][color=#333333][color=#666666] The wireless remote control switch system can realize a design of long-distance lighting control, which consists of two parts: the transmitting sy
ART-Pi evaluates the GUI design framework in VNC mode,
After a period of precipitation, the project is enriched again. Then, we will use it when others use it.The VNC communication has been debugged before, so we can just design the UI. Speaking of UI, I

Datasheet More

Circuits More