Learn How NFC, QRIS & Quran Apps Work

Learn How NFC, QRIS & Quran Apps WorkShort plain-language lessons on how NFC, QRIS, Quran verse recognition and hadith checking work, plus Yasin & Tahlil traditions.

NFC Basics: How Contactless Communication Works — Why does a card work just by tapping it? A plain-language explanation of 13.56 MHz radio waves and magnetic induction.

NFC Data Exchange: From Waves to Information — How do invisible waves turn into the ones and zeroes a phone understands? Understanding NFC modulation and signal encoding.

Inside PembacaKUE: Anatomy of an NFC App — A breakdown of the PembacaKUE app — the Android phone’s role, APDU commands, and how a smart card answers a read request.

Radio Waves: Catching the Invisible — A deeper look at radio waves — frequency, wavelength, and why NFC cards settled on 13.56 MHz.

NFC History & Trivia — From warehouse RFID to tapping through transit gates — the story of how NFC got everywhere.

NFC & IoT Glossary — The essential vocabulary of NFC, smart cards, and IoT — APDU, ATQA, UID and friends, briefly explained.

QRIS Basics: The EMVCo Standard Behind the Scan — What is QRIS, and why can one QR code work with every wallet? Understanding the EMVCo standard behind Indonesian QR payments.

Parsing QRIS Data: Reading the TLV Format — How to break a QRIS string into readable data using the Tag-Length-Value (TLV) format, with worked examples.

Inside QRISParser: Components of a QRIS App — The tech and components behind QRISParser — from camera capture through to merchant data validation.

Computer Vision: How a Camera Reads a QR Code — How does a phone camera turn black-and-white squares into information? Pattern recognition, error correction, finder patterns.

QR Code History & Trivia — How the QR code went from a Denso Wave car factory to becoming Indonesia’s national payment standard.

QRIS & EMVCo Glossary — Key QRIS and EMVCo terms — MPM, CPM, NMID, acquirer and more, explained concisely.

Surah Yasin: The Heart of the Quran — The virtues of Surah Yasin, why it is called the heart of the Quran, and how it is read in Nahdlatul Ulama tradition.

The Tahlil: Structure and Meaning — Understanding the tahlil sequence from start to finish, and the meaning behind each part of the remembrance.

Kinds of Maulid: Barzanji, Diba’ and Simtudduror — The different maulid texts read across Indonesia, and how each celebrates the birth of the Prophet Muhammad.

NU Traditions: Preserving Communal Practice — The communal practices of Nahdlatul Ulama — tahlilan, yasinan, maulidan — and the wisdom they carry.

How to Find a Quran Verse from Recitation Audio — How does an app identify a Quran verse from sound? From microphone capture and on-device Arabic speech recognition to matching against all 6,236 verses, with no audio uploaded.

How to Check a Hadith Before You Forward It — Got a hadith forwarded on WhatsApp? How a quote is traced to a collection and number, the five possible results, and why “not found” never means fake.