Source: ICisC Nanjing Integrated Circuit Industry Service Center With the rapid development of computer technology, microelectronics technology, and network technology, embedded systems have been widely used in various fields such as industry and agriculture. This article mainly provides a detailed introduction to the hardware design of ARM embedded systems and application examples of ARM embedded … Read more
Click to View System Description Title: “Arduino Password Lock Design” Functions: Can set a password, unlock successfully Five incorrect password inputs trigger an alarm (buzzer) LCD display (1602) RFID-RC522 radio frequency module (swipe card to unlock) Modules Used: Relay Infrared Remote Control (replaces matrix keyboard) RFID-RC522 radio frequency module LCD1602 (I2C) Module Physical Diagram Wiring … Read more
Lai Ruiqiang (Quanzhou Huaguang Vocational College, Quanzhou, Fujian 362121) Abstract: With the continuous development of smart campuses, the access control system of school computer rooms is also gradually becoming intelligent. This article designs an access control system for computer rooms using NB-IoT technology. The access control system is mainly controlled by Arduino Mega2560 Pro, and … Read more
Today, a fellow villager mentioned he had three TVs and asked if I would recycle them. Two are 21-inch CRTs, and one is a 32-inch LCD. With the hope of finding a bargain, I brought them back. One CRT won’t power on, and the other has interference lines. Even if repaired, they wouldn’t sell for … Read more
Assembling LCD and generic LCD common bus access methods: Method 01: Press the menu key on the remote to display the OSD menu, then press 6480 to enter factory mode, complete within 3 seconds. Method 02: Press the menu key on the remote to display the OSD menu, then press 6087 to enter factory mode, … Read more
Before sharing the content, let’s announce the course updates: Good news, << Upgraded Video Application Basics Chapter 6: Text and Image Display >> has been updated with 5 new lessons: 1. ASCII Character Bitmap Display (9 minutes, free) 2. Chinese Character Bitmap Display (16 minutes, free) 3. Universal Command for Cross-Compilation Programs: Example with Freetype … Read more
1. Overview Based on the previous article titled “RT-Thread Device Driver Development Guide: Basics – Taking the HWTIMER Device of the First Paddle BSP as an Example” we can roughly understand the methods and steps for RT-Thread device driver development. The advanced peripherals covered in this guide are generally more complex than those in the … Read more
Recently, screen manufacturer Tianma launched the world’s first LCD in-screen multi-touch fingerprint solution (TED Finger Print, abbreviated as TFP). It features high integration, full-screen multi-touch fingerprint recognition, and a high screen-to-body ratio. It achieves the first integration of touch, display, and fingerprint recognition in one. Simultaneously, it covers the entire display with optical paths and … Read more
A few days ago, my girlfriend wanted to buy a phone and asked me whether she should get the iPhone XR or the iPhone XS. I carefully explained the differences between the two. Apart from the basic parameters being the same, the iPhone XR uses an LCD screen, while the iPhone XS uses an OLED … Read more
In 2018, various smartphone manufacturers were fiercely promoting their products equipped with OLED screens, as if products without OLED screens were considered inferior. But is OLED really that much more advanced than LCD? Which is better, LCD or OLED? Why did the iPhone XR only use an LCD screen? Let’s compare the advantages and disadvantages … Read more