Current Carrying Capacity of PCB Traces and Vias

Current Carrying Capacity of PCB Traces and Vias

Introduction The electrical connections between various components on FR4 copper-clad PCBA are achieved through the copper foil traces and vias on its layers. Due to the varying current levels in different products and modules, designers need to know whether the designed traces and vias can carry the corresponding current to fulfill the product’s functionality and … Read more

Key Elements for Post-Design PCB Inspection!

Key Elements for Post-Design PCB Inspection!

When a PCB board has completed its layout and routing, and there are no errors reported in connectivity and spacing, does that mean the PCB is finished? The answer is certainly no. Many beginners, as well as some experienced engineers, often rush through the process due to time constraints, impatience, or overconfidence, neglecting the post-design … Read more

C-017: MIPI Interface PCB Layout and Routing Guide

C-017: MIPI Interface PCB Layout and Routing Guide

The MIPI (Mobile Industry Processor Interface) interface, especially its physical layers D-PHY and C-PHY, is widely used in high-speed data transmission scenarios such as cameras (CSI-2) and displays (DSI-2). The PCB layout and routing of MIPI are crucial for signal integrity, directly affecting the performance and reliability of devices. Below are key guidelines for MIPI … Read more

Do You Really Not Need Impedance Matching for SPI?

Do You Really Not Need Impedance Matching for SPI?

First, we need to ask, what is signal integrity? Why do we perform signal integrity analysis? How do we conduct signal integrity analysis? What do we achieve after signal integrity analysis?Let’s first discuss,what is signal integrity?Signal Integrity (SI): It refers to the ability of a signal to be transmitted and switched in a circuit with … Read more

Critical Blind and Buried Via Technology in PCB Design

Critical Blind and Buried Via Technology in PCB Design

Recently, I encountered a customer complaint regarding PCBA blind and buried via issues. I took this opportunity to study the topic and share knowledge with my colleagues and friends. **Core Concept:** In traditional PCB design, vias (referred to as “through holes” or “vias”) that connect different layers of circuits are through holes that extend from … Read more

Creating a Force Sensor Based on ESP32 and HX711

Creating a Force Sensor Based on ESP32 and HX711

Creating a Force Sensor Based on ESP32 and HX711—— Research Project on Basic Education Reform in Hunan Province 01Working Principle Force Sensor → HX711 → ESP32 → Bluetooth → Phyphox Mobile App HX711 ModuleHX711 is a high-precision 24-bit analog-to-digital converter chip specifically designed for pressure sensors. Its main function is to amplify the measured small … Read more

Affordable High-Performance AI Smartwatch: Custom Low-Power Design with ESP32 and Sharp 64-Color Reflective Display

Affordable High-Performance AI Smartwatch: Custom Low-Power Design with ESP32 and Sharp 64-Color Reflective Display

Contact the editor at the end of the article to obtain the project source code. The ThymeWatchRound low-power AI smartwatch is based on the Espressif ESP32-S3 main control unit with PSRAM, featuring a rotating crown, a Sharp 64-color reflective display with backlight, excellent screen performance, metallic luster, and full-screen edge single-point capacitive touch. It supports … Read more

Proteus 9: Key New Features and Improvements

Proteus 9: Key New Features and Improvements

On March 5, 2025, Labcenter Electronics Ltd. officially announced the release of Proteus 9 on its Facebook page. Proteus has a unique advantage that sets it apart from other EDA software. It is renowned for its integrated schematic capture, simulation (including microcontroller simulation), and PCB layout approach. While other EDA tools also offer PCB layout … Read more

Video Tutorial: 29 Lessons on Proteus Microcontroller Simulation

Video Tutorial: 29 Lessons on Proteus Microcontroller Simulation

The method to download materials is at the end of the article. Proteus Video Tutorial Learning Materials Proteus is an electronic design automation (EDA) software developed by Labcenter Electronics in the UK, widely used in electronic circuit design, simulation, and PCB design, especially favored in education and small project development. It includes two core modules: … Read more

Disassembly of the Wanjie M7 Host: Domestic Automotive-grade SoC

Disassembly of the Wanjie M7 Host: Domestic Automotive-grade SoC

Welcome to follow the public account belowAbao1990, this public account focuses on autonomous driving and smart cockpits, providing you with automotive insights every day. We start with cars, but we are not limited to cars. Recently, we disassembled the headlight driver board of the Wanjie M7, where the proportion of domestic chips surprised everyone. Following … Read more