51 Microcontroller

Design of an Intelligent Water Drinking Reminder Based on the 51 Microcontroller

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Design of an Intelligent Water Drinking Reminder Based on the 51 Microcontroller

Abstract This article provides a detailed introduction to the design and implementation of an intelligent water drinking reminder based on the STC89C52 microcontroller. The system integrates a temperature sensor, water level detection module, timed reminder function, and LCD display interface to achieve core functionalities such as water temperature monitoring, water quantity detection, and timed reminders. … Read more

With Just 512 B of RAM, Microcontrollers Can Run Real-Time Operating Systems

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With Just 512 B of RAM, Microcontrollers Can Run Real-Time Operating Systems

What is scmRTOS? scmRTOS (single-chip microcontroller RTOS) is a preemptive real-time operating system designed specifically for microcontrollers with extremely limited resources. It is entirely written in C++, with an astonishingly small code size: it can run with a minimum of 512 B RAM and about 1 KB of program code. Supported MCUs include common platforms … Read more

Programming and Simulation of the PY32C673 Microcontroller Using PY32 LINK

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Programming and Simulation of the PY32C673 Microcontroller Using PY32 LINK

The PY32C673 series microcontrollers utilize a high-performance 32-bit ARM® Cortex®-M0+ core, with up to 64 Kbytes of embedded flash and 8 Kbytes of SRAM memory, operating at a maximum frequency of 72 MHz. The chip integrates multiple communication peripherals such as I2C, SPI, USART, a 12-bit ADC, four 16-bit timers, one 32-bit timer, as well … Read more

Microcontroller Basketball Scoreboard Circuit Diagram and Source Code

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Microcontroller Basketball Scoreboard Circuit Diagram and Source Code

The basketball scoreboard mainly consists of two major parts: one part implements the countdown function, similar to the 60S countdown done in the experimental class. The other part implements the scoring function, which is fundamentally similar to a counter. Additionally, there are two parts for switching display functions.It is important to note that the pins … Read more

Design Scheme for Voice Recognition Desk Lamp Microcontroller

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Design Scheme for Voice Recognition Desk Lamp Microcontroller

The voice recognition desk lamp is an intelligent lamp that operates through voice control, enabling various functions. This type of desk lamp is beneficial for children’s work, study, and reading, while also serving as a home decoration and can be used for emergency lighting. The development scheme for the intelligent voice desk lamp aims to … Read more

How to Achieve Different Voltage Outputs Using Diodes in Microcontrollers

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How to Achieve Different Voltage Outputs Using Diodes in Microcontrollers

Utilizing the unidirectional conductivity of diodes allows for the design of interesting and practical circuits. This article shares an analysis of how clamping circuits and limiting circuits are implemented using diodes. Limiting Circuit As shown in the figure below, when in the positive half-cycle, and VIN is greater than or equal to 0.7V, the diode … Read more

Design of a Spraying System for Road Cleaning Vehicles Based on the 51 Microcontroller

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Design of a Spraying System for Road Cleaning Vehicles Based on the 51 Microcontroller

Abstract This article details the design scheme of a spraying system for road cleaning vehicles based on the STC89C52RC microcontroller. The system integrates a temperature and humidity sensor, a water pump control module, and a real-time display interface to achieve intelligent and automated road cleaning functions. The article comprehensively elaborates on the implementation process from … Read more

Comparison and Analysis of Interrupts and Core Independent Peripherals in Microcontrollers

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Comparison and Analysis of Interrupts and Core Independent Peripherals in Microcontrollers

CIP (Core Independent Peripheral, independent of the core peripherals) functionality has been discussed in previous articles. CIP can alleviate some of the workload of the interrupt system, but it cannot completely replace it. Both have their own advantages and disadvantages in terms of operational characteristics, and this article provides an analysis of their pros and … Read more

Understanding the Role of RAM in Microcontrollers!

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Understanding the Role of RAM in Microcontrollers!

A microcontroller is essentially a small computer, and just like a large computer, it requires a data storage system. Microcontrollers have this capability, often integrated with the CPU, making them compact and flexible.Until the early 1990s, the most accessible microcontroller in China was the 8031: a chip without built-in memory, requiring external RAM and ROM … Read more