Before the invention of the breadboard (in the 1960s), you had to use a technique called wire wrapping to build circuits. The wire wrap connects the circuit by linking conductive posts to a perforated board and winding wires around them. As shown in the image below, the circuit can be quite complex. The circuit board … Read more
Guangdong Education Edition High School Information Technology Mandatory Course 1 “Data and Computing” Guangdong Education Edition High School Information Technology Mandatory Course 2 “Information Systems and Society” Guangdong Education Edition High School Information Technology Elective Course 1 “Data and Data Structures” Guangdong Education Edition High School Information Technology Elective Course 2 “Network Basics” Lesson Plan … Read more
1. Preparation The Mecanum wheel robot is a type of robot that can achieve omnidirectional movement, with its core being the specially designed Mecanum wheels. To build a Mecanum wheel robot from scratch, you may need to prepare the following components and tools: 1. Materials and Components Mecanum Wheels: Choose Mecanum wheels of the appropriate … Read more
MAKER: mattwach／Translated by: 趣无尽 The combination of an e-paper display with any frame creates a classic look. Its unique nostalgic quality ensures that the display works created with it remain timeless. Previously, we introduced an e-paper photo frame: it can display one classic film for an entire year using a black-and-white frame display. Today, we … Read more
MAKER:DIY GUY Chris／Translated by: 趣无尽 The six faces of this colorful glowing cube are made up of a 5 X 5 WS2812 LED matrix, with each face connected through reserved soldering points. Each matrix plane is driven by an RP2040 chip, and theoretically, you can enlarge this cube and increase the number of cubes to … Read more
A few days ago, a frustrating problem left me quite unhappy.The final solution was simple, but the problem itself had me deep in thought. I thought it was time to tidy up the messy breadboard circuit, as all the issues began at that point. (Note: These circuits are mainly used to drive my Cunning Chronograph). … Read more
The piezoelectric trigger switch circuit described here is a microcontroller-compatible impact sensor switch module operating on a 5V DC power supply. The entire circuit can be assembled on a standard 5×7 cm circuit board. The piezoelectric ceramic element (Pz1) can also be easily mounted on the PCB. This module provides a “logic” (H) output when … Read more
Abstract: In response to the application demands for high-precision indoor autonomous navigation and positioning for pedestrians, a wearable human motion measurement device prototype integrating Arduino and the Xsens Awinda inertial measurement suite has been designed. This system is easy to wear and highly reliable, achieving synchronous measurement of dual-foot IMU information and foot distance, supporting … Read more
A long time ago, in Denmark, there was a king named Harald Blatand, who unified the constantly quarreling tribes of Denmark into a complete nation. The king had a nickname called “blátǫnn,” which translates to Bluetooth in English. In ancient Nordic runes, the initials of the king’s name ‘H’ and ‘B’ are written differently than … Read more
PCB Network News Sharing an interesting piece of information: using wire to create a “circuit board”. I hope it inspires colleagues in the industry. What is Freeduino? It is an Arduino UNO board without any circuit board. It interconnects components using a technique called freeform, utilizing wires or copper instead of a circuit board. It … Read more