QRLynx Blog
QR Code Guides, Tips & Best Practices
Ahmad TayyemHow to Scan a QR Code on Windows (PC, Laptop, Surface)
Windows has no native QR scanner. How to scan QR codes from screenshots, webcam, or printed material on Windows 11/10 and Surface — without a sketchy app.
Ahmad TayyemBing QR Code Scanner — Microsoft Edge & Copilot (2026)
How Microsoft QR scanning works — Bing app visual search, Edge mobile QR reader, and Copilot image understanding, and where each fits in your workflow.
Ahmad TayyemUSDC QR Codes: How Stablecoin Payments Work via QR (2026)
USDC is a stablecoin pegged 1:1 to the US dollar by Circle. A "USDC QR code" is your Ethereum/Polygon/Solana wallet address — the sender picks USDC.
Ahmad TayyemUSDT QR Codes: Tether Payment Setup for Merchants (2026)
USDT (Tether) is the largest stablecoin, lives on multiple chains, and is the most common crypto for remittances. How QR-based USDT payments work.
Ahmad TayyemHow to Accept Crypto Payments via QR Code (2026 Guide)
Setting up crypto payments — direct-wallet vs payment-processor, accounting, refunds, settlement, and the realistic adoption rate.
Ahmad TayyemHow to Scan a WeChat QR Code Without WeChat (2026 Guide)
Got a WeChat QR code but do not have WeChat installed? Here is what works, what does not, and exactly when the WeChat app is unavoidable. 2026 guide.
Ahmad TayyemWeChat Pay vs Alipay QR Codes — Which to Accept (2026)
WeChat Pay and Alipay dominate Chinese mobile payments. Merchants serving Chinese tourists or selling cross-border must choose which QR system to accept.
Ahmad TayyemQR Code Versions Explained: From V1 (21×21) to V40 (177×177)
Every QR code is one of 40 versions defined by ISO/IEC 18004. Capacity tables for V1 through V40, the module-count math, and how to pick the right version
Ahmad TayyemISO/IEC 18004: The QR Code Standard, Explained (2026)
ISO/IEC 18004 — the international QR code standard. How QRs encode data, how they're structured, how scanners decode them, error correction explained.