WhatsApp web no valid QR Code detected: There are instances when users fail to log in to WhatsApp Web because of being unable to scan the QR code. WhatsApp web QR code works only with a built-in QR ...

QR codes are those square barcode-looking things that when scanned by your iPhone 16 Pro, Galaxy S25 Ultra or any other phone, can send you straight to a particular webpage or to download an app, all ...

Most people think of barcode scanners as clunky retail gadgets, not something quietly built into the phone they use every day. Yet modern smartphones ship with powerful tools that can read everything ...

A command-line tool that generates QR codes from text and URLs, outputting them as text or graphics files. This tool was created with Claude Code using Ollama as local LLM provider with ...

Abstract: Attendance system is the process of identifying an employee's attendance as one of the foundation of the company in providing salary and other rewards. The problem of this research is ...

A web framework for Node.js. An Express application instance is created. The port is set from an environment variable PORT or defaults to 10000. If the port is invalid, it falls back to 10000. The ...

Abstract: Fraud in regard to attendance and impersonation are important threats to the integrity of high stakes examinations. To overcome such issues as mentioned above, this paper proposes a secure ...