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rfid-basic-with-led-31731e-en.md

Just follow the schematics and copy and paste code.hope you guys enjoy!!!

EXPANDED TECHNICAL DETAILS

Visual Identity Verification

A foundational security project that uses RFID technology to provide an instant, color-coded visual "Success" or "Failure" status.

  • SPI-to-MFRC522 Handshake: The Arduino established a 10MHz SPI link with the RC522 RFID module. It reads the 4-byte Unique ID (UID) of any card or fob brought near the antenna.
  • State-Triggered LED Matrix: If the ID matches the whitelist, the Arduino triggers a Green LED and a short, high-pitched beep. If the card is unknown, it triggers a Red LED and a long, low-frequency warning tone.

Performance

  • Low-Power Card Polling: The firmware includes a sleep cycle that only activates the RFID radio for 50ms every 200ms, reducing power consumption for battery-operated locks.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Rfid basic with LED"
description: "Basic RFID but this project have some leds"
author: "daryllqayyim"
category: ""
tags:
  - "security"
views: 5558
likes: 1
price: 299
difficulty: "Easy"
components:
  - "1x RFID Module (Generic)"
  - "1x RFID reader (generic)"
  - "1x Jumper wires (generic)"
  - "1x Arduino UNO"
  - "1x Breadboard (generic)"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
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seoDescription: "Learn basic RFID integration with LED in this simple Arduino project. Perfect for beginners starting with RFID modules."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/rfid-basic-with-led-31731e_cover.jpg"
lang: "en"