Transforming micro:bit into an Electromagnetic Radiation Tester

Transforming micro:bit into an Electromagnetic Radiation Tester

I have seen cases online where Arduino is used to create a simple electromagnetic radiation tester, typically using several LEDs to display the intensity of electromagnetic radiation. The micro:bit comes with a built-in LED matrix, so I thought it would be more intuitive to migrate this small experiment and use the matrix to display radiation … Read more

The Journey of Digital Tubes

The Journey of Digital Tubes

Arduino Design Course (Part 3) The Journey of Digital Tubes Course Introduction When numbers dance gracefully with light and shadow on the circuit board, digital tubes compose a brilliant visual poem of electronic magic. In the galaxy of electronic creativity, digital tubes serve as glowing cipher books, transforming numerical language into the rhythmic dance of … Read more

Methods for Calculating Points and Costs in PCBA/FPCBA SMT Processing

Methods for Calculating Points and Costs in PCBA/FPCBA SMT Processing

SMT, short for Surface Mount Technology, originated in the 1960s, involves directly mounting SMD components onto PCBs. Its greatest advantage is the high wiring density per unit area of each component, which shortens connection lines and improves electrical performance. Below, I will quickly guide you through the SMT process flow. (This is SMT) 01 SMT … Read more

Top 100 PCB Manufacturing Companies in China (Including Main Products)

Top 100 PCB Manufacturing Companies in China (Including Main Products)

1. Zhendin Technology Holdings Co., Ltd. Introduction: Established in 2006, mainly produces flexible circuit boards, high-density interconnect boards, rigid circuit boards, and IC substrates; Main products: Flexible circuit boards (FPC), high-density interconnect boards (HDI), rigid circuit boards (R-PCB), and IC substrates; 2016 revenue: 16.985 billion CNY2. Jantech Technology Co., Ltd. Introduction: Located in Taoyuan, Taiwan, … Read more

Feasibility Study Report on the Construction Project of PCB Production Base in Pathum Thani, Thailand

Feasibility Study Report on the Construction Project of PCB Production Base in Pathum Thani, Thailand

1. Project Overview The company plans to purchase land in the Jinchi Industrial Park in Pathum Thani, Thailand, and build its own factory. By acquiring advanced production equipment, the company aims to establish a printed circuit board (PCB) production base to enhance its overall production capacity and improve its overseas capacity layout, thereby filling the … Read more

Are You Using the Multimeter Correctly? Let This Guide Help Every Engineer!

Are You Using the Multimeter Correctly? Let This Guide Help Every Engineer!

Click Mechanical Frontier” Follow for Updates Leading the Mechanical Frontier, Mechanical Videos, Automotive, Processing Technology, 3D Printing, Automation, Robotics, Production Processes, Bearings, Molds, Machine Tools, Sheet Metal, and other industry frontiers await you here A multimeter, also known as a multi-tester, is a multifunctional and multi-range measuring instrument. Generally, a multimeter can measure DC current, … Read more

Post-95s Young Man Creates Affordable Drone Using Chopsticks!

Post-95s Young Man Creates Affordable Drone Using Chopsticks!

130,000 Likes! A Young Man Born After 1995 Creates an Affordable Drone Using Chopsticks‌When the creativity of a tech enthusiast meets takeout chopsticks, a wave of “imaginative innovation” brings laughter to the internet! A 28-year-old from Dezhou, Shandong, named Xiao Zhao, built a drone that can fly up to 70 meters high using disposable chopsticks, … Read more

How Beginners Can Quickly Understand Circuit Boards – A Share of Practical Experience

How Beginners Can Quickly Understand Circuit Boards - A Share of Practical Experience

When I first encountered electronic systems, I could only practice soldering and was eager to understand circuit boards, but I struggled to grasp the essentials. Later, in the lab and after starting my job, as I accumulated experience in hardware design and debugging, combined with guidance from experienced experts around me, I gradually understood circuit … Read more

The Secrets of Multimeters You Didn’t Know

The Secrets of Multimeters You Didn't Know

The reason a multimeter can measure current, voltage, and resistance lies in its use of a sensitive galvanometer. When a small current passes through the meter, the needle will indicate a value. However, the galvanometer cannot directly handle large currents, so it is necessary to connect some resistors in parallel or series with the galvanometer … Read more

Modifying the Universal Multimeter

Modifying the Universal Multimeter

This is a new model of the Nanjing Kehua MF47-F multimeter. Upon opening the back cover, it is easy to notice that compared to the old model, the most obvious difference is that the function switch section has adopted a rotating buckle design. After a thorough examination, I recently made a few modifications to achieve … Read more