OLED display

Design of a Multifunctional Electronic Calendar Based on STM32 Microcontroller

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Design of a Multifunctional Electronic Calendar Based on STM32 Microcontroller

1. Overall System Design Scheme This design uses the STM32F103C8T6 as the control core, integrating real-time clock, temperature and humidity detection, human-computer interaction, and display functions to build a fully functional smart calendar system. The system adopts a modular design philosophy, divided into main control module, display module, time management module, environmental monitoring module, and … Read more

Traffic Light Design Based on 51 Microcontroller

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Traffic Light Design Based on 51 Microcontroller

Long press the QR code below to enter the public account Catalog 1 Introduction…………………………………………. 1 2 System Discussion……………………………………… 2 2.1 Design Background……………………………………………………………………….. 2 2.2 Design Concept……………………………………………………………………….. 2 2.3 System Framework Design………………………………………………………………… 2 3 PWMPulse Width Modulation Principle………………………………. 4 3.1 PWMSpeed Control Principle…………………………………………………………………. 4 3.2 PWMSpeed Control Method…………………………………………………………………. 4 3.3 PWMImplementation Method…………………………………………………………………. 4 4 System Hardware … Read more

2026 New Apple iPad: A18 Chip + AI + Wi-Fi 7 Fully Equipped, Starting at 2999 Yuan

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2026 New Apple iPad: A18 Chip + AI + Wi-Fi 7 Fully Equipped, Starting at 2999 Yuan

The 2026 iPad product line from Apple is no longer a secret, with upgrades for the entry-level, Air, and mini models, especially the entry-level model, which features the A18 chip and AI capabilities without a price increase. Netizens have already started to cheer, saying “the wait-and-see party has won big.” Entry-Level iPad: Get the Same … Read more

Light Pollution Rights Protection: The Urgent Need for Light Control Modules in Outdoor Display Engineering

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Light Pollution Rights Protection: The Urgent Need for Light Control Modules in Outdoor Display Engineering

Recently, a resident in Guangzhou successfully defended their rights against the strong light from an LED display screen of a nearby shopping mall, leading to the shutdown of the mall’s advertising screen! It is reported that the installation of this LED screen was done without prior approval, and if the approval had been obtained, the … Read more

How LED Companies Can Survive Amidst PCB Price Hikes and Industry Upgrades

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How LED Companies Can Survive Amidst PCB Price Hikes and Industry Upgrades

Recently, the Department of Electronic Information of the Ministry of Industry and Information Technology officially released two drafts for public comment: the “Regulatory Conditions for the Printed Circuit Board Industry (2025 Edition)” and the “Management Measures for the Announcement of Printed Circuit Board Industry Standards (2025 Edition)”. The opinions propose strict control over the expansion … Read more

Music Player Project with 51 Microcontroller

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Music Player Project with 51 Microcontroller

1 Introduction In the field of microcontroller development, 8-bit microcontrollers are the ideal choice for electronics enthusiasts due to their low cost, relatively simple structure, and ease of programming. This article introduces how to use an 8-bit microcontroller to play music. The project is programmed in C language to play audio files, and includes circuit … Read more

Design of a Frequency Adjustable Ultrasonic Signal Source System

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Design of a Frequency Adjustable Ultrasonic Signal Source System

🧠 System Overview This “Frequency Adjustable Ultrasonic Signal Source System” is based on the STM32 microcontroller, integrating multiple functions such as ultrasonic distance measurement, Bluetooth communication, OLED display, and sound alarm. The system can dynamically adjust the ultrasonic frequency according to different scene requirements, achieving high-precision measurement at short distances and stable detection at long … Read more

STM32 Peripheral Driver Module: DS1302 Real-Time Clock Module

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STM32 Peripheral Driver Module: DS1302 Real-Time Clock Module

unsetunset1. Introductionunsetunset 1. Learning Objectives The goal of this article is to guide you through the use of the DS1302 real-time clock module to display the current time in real-time on an OLED display. We will help you gain a comprehensive understanding of the DS1302 module by introducing hardware connections, basic module configurations, and program … Read more

16×16 LED Matrix Simulation Based on 51 Microcontroller in Proteus

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16x16 LED Matrix Simulation Based on 51 Microcontroller in Proteus

     This design is for a 16Ă—16 LED electronic display screen. The entire system is centered around the 40-pin microcontroller AT89C51 produced by ATMEL, USA, and introduces the dynamic design and development process of the LED matrix electronic display screen controlled by this microcontroller. The chip controls two row drivers 74LS164 and two column … Read more

Connecting PLC with 7 Peripheral Devices: Easy to Understand!

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Connecting PLC with 7 Peripheral Devices: Easy to Understand!

Follow “Jicheng Training”, focused on automation education for 14 years Common input devices for PLC include buttons, limit switches, proximity switches, toggle switches, dip switches, and various sensors, while output devices include relays, contactors, and solenoid valves. Correctly connecting the input and output circuits is a prerequisite for ensuring the safe and reliable operation of … Read more