Description
Tap your phone. Make something happen.
NTAG213 NFC tags turn any surface into a smart tap point. Write a link, a Wi-Fi password, a contact card or a trigger onto the tag, and anyone with an NFC phone gets it with one tap. Choose a small round sticker or a card-size tag.
NTAG213 NFC ট্যাগে লিংক, Wi-Fi পাসওয়ার্ড, কন্টাক্ট কার্ড বা অন্য তথ্য লিখে রাখা যায়। NFC সাপোর্টেড ফোন ট্যাগে ট্যাপ করলেই তথ্য পেয়ে যায়। গোল স্টিকার ও কার্ড সাইজ, দুই ধরনেই পাওয়া যায়। ডিজিটাল ভিজিটিং কার্ড, স্মার্ট হোম ও Arduino প্রজেক্টে ব্যবহার করুন।
What can one tap do?
Choose a use to see what to write on the tag.
Free apps such as NFC Tools let you write and read tags in a few taps.
Specifications
| Chip | NXP NTAG213 |
|---|---|
| Frequency | 13.56 MHz (HF) |
| Standard | ISO/IEC 14443 Type A and NFC Forum Type 2 |
| Memory | 144 bytes of user memory |
| Write cycles | About 100,000 rewrites |
| Data retention | About 10 years |
| Sizes | 25 mm circular sticker, or 86 × 54 mm rectangular card size (choose from the Sizes menu) |
| Round sticker | Self-adhesive back, ready to stick on a phone case, box, wall or product |
| Compatible with | NFC-enabled Android phones, iPhones (7 and later) and NFC readers such as RC522 and PN532 |
| Security | Can be locked read-only, or protected with a password |
| Bulk pricing | 5% off from 50 pieces, 10% off from 500 pieces |
| In the box | NFC tags in the size and quantity you order |
What you can build
One tap, endless uses.
Smart business card
Stick a tag on a card or a phone case. One tap shares your website, WhatsApp or contact details.
Wi-Fi for guests
Put a tag in your shop or office, so visitors join in one tap.
Menus and product info
Link a tag to a menu, a manual or a product page.
Attendance and access
Use tag IDs with an Arduino and a reader for check-in or door control.
Smart home triggers
Tap to turn on a lamp, a scene or a phone mode.
School projects
Learn how NFC and RFID work with simple, cheap parts.
Write your first tag in four steps
- Install. Download a free NFC app such as NFC Tools on your phone.
- Choose. Open the app, go to Write, and add a record such as a link, text or Wi-Fi.
- Write. Tap Write, then hold the back of your phone against the tag until the app confirms.
- Stick. Place the sticker where you want it, and test it with a tap.
Good to know: NFC tags do not work well when stuck directly on metal. Put a thin non-metal spacer, or a special anti-metal tag, between the tag and the metal. Locking a tag read-only is permanent, so test your content before you lock it.
Read tags with Arduino
An RC522 module reads the unique ID of any NTAG213 tag. Wire it to an Arduino UNO: SDA to D10, SCK to D13, MOSI to D11, MISO to D12, RST to D9, 3.3V to 3.3V (not 5V) and GND to GND. Install the “MFRC522” library, then upload this sketch and tap a tag.
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
MFRC522 rfid(SS_PIN, RST_PIN);
void setup() {
Serial.begin(9600);
SPI.begin();
rfid.PCD_Init();
Serial.println("Tap a tag");
}
void loop() {
if (!rfid.PICC_IsNewCardPresent() || !rfid.PICC_ReadCardSerial()) return;
Serial.print("Tag ID:");
for (byte i = 0; i < rfid.uid.size; i++) {
Serial.print(rfid.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(rfid.uid.uidByte[i], HEX);
}
Serial.println();
rfid.PICC_HaltA();
}To unlock something with a tag, copy the ID from the Serial Monitor and switch on a pin when it matches. This sketch lights an LED on pin 8 for the allowed tag. Replace the ID in the quotes with yours.
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
MFRC522 rfid(SS_PIN, RST_PIN);
const String allowedID = " 04 A1 B2 C3 D4 E5 F6"; // replace with your tag ID
void setup() {
pinMode(8, OUTPUT);
SPI.begin();
rfid.PCD_Init();
}
void loop() {
if (!rfid.PICC_IsNewCardPresent() || !rfid.PICC_ReadCardSerial()) return;
String id = "";
for (byte i = 0; i < rfid.uid.size; i++) {
id += (rfid.uid.uidByte[i] < 0x10 ? " 0" : " ");
id += String(rfid.uid.uidByte[i], HEX);
}
id.toUpperCase();
if (id == allowedID) {
digitalWrite(8, HIGH); // access granted
delay(2000);
digitalWrite(8, LOW);
}
rfid.PICC_HaltA();
}Questions buyers ask
What is NTAG213, and is 144 bytes enough?
NTAG213 is a popular NFC chip from NXP. 144 bytes is enough for a short web link, a Wi-Fi login, a text note or a simple contact card. It is not meant for large files.
Which phones can read it?
Almost all NFC-enabled Android phones, and iPhones from the iPhone 7 onward. Newer iPhones (XS and later) can read tags without opening an app. Make sure NFC is switched on in your phone settings.
Which size should I choose?
Choose the round sticker to stick on objects, phone cases and boxes. Choose the rectangular card size for wallet cards, smart business cards and access cards.
Can I rewrite the tag?
Yes, up to about 100,000 times, unless you lock it read-only.
Does it work on metal?
Not well. Metal blocks the signal. Add a non-metal spacer or use a special anti-metal tag.
Can I use it with Arduino?
Yes. RC522 and PN532 readers can read the tag ID, and the PN532 can also read and write the stored data. See the sketches above.
Do you offer bulk discounts?
Yes. You get 5% off when you order 50 to 499 pieces, and 10% off for 500 pieces or more.
Do you deliver outside Dhaka?
Yes, we deliver all over Bangladesh.
Related searches
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Banglish: NFC tag dam koto, NFC sticker kothay pabo, NTAG213 price BD, NFC card kinbo kothay, RFID tag Dhaka
বাংলা: এনএফসি ট্যাগ দাম, এনএফসি স্টিকার, আরএফআইডি ট্যাগ, ডিজিটাল ভিজিটিং কার্ড, রোবোটিক্স শপ ঢাকা
