Adaptive Testing

Detailed Certifications Required for Bluetooth Printers Exporting to the European Market

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Detailed Certifications Required for Bluetooth Printers Exporting to the European Market

Click the blue text above to follow us ‌1. Analysis of Required Core Certification Systems‌ ‌1. CE Certification (Mandatory)‌ ‌① RED Directive (2014/53/EU)‌ ‌Applicable Product Scope‌: All devices with Bluetooth, Wi-Fi, and other wireless communication functions. ‌Key Testing Items‌: ‌Immunity Testing‌: Stability of the device under electrostatic discharge (±8kV contact discharge) and conducted disturbances from … Read more

Default HTTP Request Values in JMeter

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Default HTTP Request Values in JMeter

Function Introduction When editing a test plan in JMeter, if there are multiple Sampler requests with the same parameters and settings, such as the protocol, IP address, and port number of the service being requested, configuring each Sampler individually would increase redundancy and workload. Additionally, if the server address changes in the future, it would … Read more

Case Study on the Rectification of Head-mounted Bluetooth Electrostatic Issues

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Case Study on the Rectification of Head-mounted Bluetooth Electrostatic Issues

Click the blue text to follow us Introduction There are various types of wireless Bluetooth headsets on the market, which offer excellent sound quality and convenient control features. Wireless Bluetooth headsets not only free our hands but also allow us to enjoy calls and music more freely. The sales of wired headsets are gradually declining, … Read more

Interpretation of Combined Insulin and C-Peptide Test Results

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Interpretation of Combined Insulin and C-Peptide Test Results

Common Patterns Insulin CPep Clinical Significance ↑↑ ↑↑ Insulinoma, insulin resistance (early stage of type 2 diabetes) ↑↑ ↓↓ Exogenous insulin use (artificial hypoglycemia) ↓↓ ↓↓ Type 1 diabetes, late stage type 2 diabetes Normal ↑↑ Insulin resistance (compensatory secretion increase) Assessment of Insulin Resistance Normal value: <2.5; >2.9 indicates insulin resistance. Interfering Factors and … Read more

Comprehensive Guide to Python Debugging: From Print to Advanced Techniques

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Comprehensive Guide to Python Debugging: From Print to Advanced Techniques

Hello everyone, I am ICdoeWR. As a Python developer, debugging is an essential part of our daily work. Mastering the methodologies, basic techniques, and advanced strategies for debugging Python code helps us quickly locate and resolve various issues in our code. 1. Debugging is Very Important! Debugging is a critical step in the software development … Read more

Summary Report of the Portable USB-C Multifunctional Tool Project

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Summary Report of the Portable USB-C Multifunctional Tool Project

Current Status: Prototyping and soldering completed, entering the final testing and optimization phase 1. Current Progress ✅ Completed Work Project Key Achievements Time/Cost PCB Prototyping – JLCPCB 5 Yuan special board (5 pieces)– Manual soldering: only a few components (CH224K/USB-C interface), but USB-C is really difficult to solder manually 1 week / ¥13.04 (including shipping) … Read more

What is GCC Certification? How to Obtain GCC Certification?

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What is GCC Certification? How to Obtain GCC Certification?

Click the blue text above to follow us ‌ ‌1. Applicable Product Scope‌ GCC certification is a mandatory entry certification for certain products in the member countries of the Gulf Cooperation Council (GCC) (Saudi Arabia, UAE, Kuwait, etc.), mainly applicable to categories related to public safety, health, and environmental protection. The specific categories include: ‌Low … Read more

The Role and Process of Chip Packaging and Testing

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The Role and Process of Chip Packaging and Testing

Click the blue text to follow usProducts in the market generally go through three stages: design, manufacturing, and packaging.Packaging and testing involve cutting qualified wafers produced, wire bonding, and encapsulating them to achieve electrical connections between the chip circuits and external devices, providing mechanical and physical protection for the chips. Additionally, testing tools provided by … Read more

Transforming micro:bit into an Electromagnetic Radiation Tester

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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

Practical Oscilloscope Manual Collection: Your Guide to Testing and Measurement

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Practical Oscilloscope Manual Collection: Your Guide to Testing and Measurement

The oscilloscope is an essential tool for all electronic engineers. This document shares the basic structure, working principles, and measurement operations of oscilloscopes, and introduces methods and techniques for using oscilloscopes in scenarios such as signal measurement and power integrity testing. Table of Contents: Illustrated Guide to Oscilloscope Usage and Application Techniques, “In-Depth Understanding of … Read more