Background introduction
Huanong has three treasures: listening, morning exercises, and running in Nanhu. So do you have to bring your campus card with you when running in Nanhu? Isn’t it embarrassing that I can’t get through the door when I return to the dormitory late without bringing my campus card? What should I do if the access keys issued by the community are not enough? Today I will take you to NFC...
Differences in card types
Access control cards are divided into two types: IC cards and ID cards. Among them, ID cards have no encryption measures, and IC cards can be encrypted or not.
市面上的门禁卡大约八成都是加密的IC卡，最好购买cuid类卡片
How to identify the type of your access card?
Only IC cards can be written into wearable devices. If you have an NFC reader and writer, put it on and hear one beep, which is the IC card, and two beeps, which is the ID card.
I don’t have a card reader? As long as the mobile phone or wearable device can write to NFC, it can be used for testing. What can be read by wearable devices or mobile phones is the IC card, and what cannot be read is the ID card.
New access control card for Android phones
To add access control on an Android phone, you usually click on the button 钱包->钥匙and then add the access control card.
Apple mobile phone adds access control card
Currently, the official NFC function is not provided, only jailbreaking, but it may cause system problems. We can choose to use NFC stickers, write the access card information on the sticker, stick the sticker on the back of the phone (it won’t be very inconsistent) and it can be used as an access card! ! !
How to add an encrypted card
If the encrypted card is written, we can shop, take buses, etc., but this requires us to purchase an NFC reader and writer for decryption operations. The price on the market ranges from 20 yuan to 100 yuan (poverty shows my imagination...)
Some operations and tools
In fact, NFC is not only about access control cards and consumption, but also we can use it to do a series of operations, such as asking the phone to open a link, letting the phone directly connect to Bluetooth, and formulating a set of operation actions. Android phones can be written with many software, such as: NCF Touch+, NFC Tools, for iPhone NFC For BusinessorNFC Master
I write my personal website address into the NFC card. Next time I read the NFC directly, a link will pop up. Click to open the website address directly.
Use mobile phone to write data to NFC card
Available for Android NFC百宝箱, available for iPhone usersNFC Master