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
What is the working principle of lcd1602? 1. Segment Display The dot matrix liquid crystal consists of M×N display units. Assuming the LCD screen has 64 rows and each row has 128 columns, every 8 columns correspond to 1 byte of 8 bits, meaning each row consists of 16 bytes, totaling 16×8=128 dots. The screen … Read more
1. Making the Obstacle Avoidance Car 1. Preparations for Making the Obstacle Avoidance Car Hardware: Arduino UNO, L298N driver module, ultrasonic module, car chassis, servo module, a breadboard, and some Dupont wires. Software: Arduino UNO programming download software Here is an image of the installed setup: 2. Understanding the Servo Module We are using a … Read more
Want to connect a key to your computer for practicing CW transmissions? On lcwo.net’s transmission practice, you can input Morse code by pressing buttons. Websites like lcwo.net for online Morse practice and morsecode.me for real-time communication using Morse allow you to input Morse code by clicking the mouse or pressing a key on the keyboard—of … Read more
Click the blue text to follow us Metamaterials are materials composed of periodic or quasi-periodic sub-wavelength structures (called meta-atoms) that have attracted widespread attention in optics, electronics, physics, materials science, and other fields due to their unique physical properties. Metasurfaces refer to planar arrays of meta-atoms arranged in a 2D manner. Metasurfaces have a wide … Read more
Introduction During the pandemic, feeling a bit bored, I bought a smart car chassis and a bunch of parts on Taobao, developed based on Arduino Due and Raspberry Pi. The Due is responsible for low-level control, while the Raspberry Pi is used for high-level controller development, such as Stanley controller or model predictive controller for … Read more
Baymax Robot Difficulty Index: ⭐⭐ Suitable Age: 9 years+ Introduction Baymax is a beloved robot among many children. Combining everyone’s interests, today we will create a Baymax creative robot. This project has a low technical difficulty, and the highlight is mainly in the creativity. Print an image of the Baymax robot on cardboard, and then … Read more
Arduino is a convenient, flexible, and easy-to-use open-source electronic prototyping platform that includes hardware (various models of Arduino boards) and software (Arduino IDE). It was developed by a European team in the winter of 2005. It is built on an open-source simple I/O interface and has a development environment similar to Java and C language … Read more
Author:Cabe Atwell EET Electronic Engineering Magazine Original Like single-board computers (SBCs), CPUs, GPUs, and other electronic products on the market, the COVID-19 pandemic has affected the production of microcontrollers, leading to shortages. However, the current chip shortage is expected to improve in the coming months. Regardless of how severe the shortages are, manufacturers had already … Read more
Click the title below “First Education Professional Circle” to quickly follow AbstractBlended teaching, as a teaching model that integrates the advantages of offline and online teaching, is more conducive to promoting students’ autonomous learning and is more suitable for project-based learning aimed at solving real-world problems. This study takes the “Intelligent Product Design and Production” … Read more