A few days ago when I was wandering on the Internet, I found a cheap and high-quality NFC pendant - SmartTag, which was priced within about 10 yuan. SmartTag is a small pendant that can be programmed. It has a built-in NFC sensing chip. You can set different functions and programs in different places to achieve the function of switching scene modes. After the setting is successful, just touch the pendant to let the phone perform the functions you planned earlier.
For example, if I have four SmartTags pendants, they are "living room", "office", "bedroom" and "driving". stay Living room mode Middle, paste a widget to automatically connect to WLAN and start Sina Weibo client; And in Driving mode In, automatically open GPS and Google Maps, and at the same time start the Bluetooth module to answer the phone with the Bluetooth headset; stay Office scene Middle, open Wifi and WeChat; stay Before going to bed , turn on the alarm clock, turn off the ringing tone of the mobile phone (I hate that someone wakes me up when I sleep!), and turn off Wifi, Bluetooth and GPS to save power.
SmartTags in 4 different colors
SmartTags is developed by SONY, but NFC communicates according to the unified protocol, which is applicable to all Android phones with NFC chips! NFC (abbreviation: NFC: full name: Near Field Communication), also known as short-range wireless communication, is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission between electronic devices, exchanging data within ten centimeters (3.9 inches). There are three main modes——
1. Card simulation: This mode is actually equivalent to an IC card using RFID technology, which can replace a large number of IC cards (including credit cards) in shopping malls, bus cards, access control, tickets, tickets, etc. It can be used even if the phone has no power
2. Peer to peer mode: This mode is similar to infrared ray and can be used for data exchange, but the transmission distance is shorter, the transmission creation speed is faster, the transmission speed is faster, and the power consumption is lower (Bluetooth is similar). Linking two devices with NFC function can realize point-to-point data transmission, such as downloading music, exchanging pictures or synchronizing the device address book. Therefore, through NFC, multiple devices such as digital cameras, tablets, computers and mobile phones can exchange data or services.
3. Reader/writer mode: used as a non-contact card reader, such as reading relevant information from posters or electronic labels of exhibition information.
NFC is not a new thing, but its development prospect is really broad. I hope that my life can be like this - riding a public bicycle to work in the morning, instead of using a bus card, I use my mobile phone to swipe the card to get the car; When buying lunch at noon, put your mobile phone on the cash register to pay the amount; In social activities, contact your business card through NFC mobile phone, and automatically add my contact information to the other party's address book.