A special tech that makes it easy to connect to your family's smartphone Wi-Fi

"Clearing" I don't know "of home Wi-Fi!" Serialized article list

In order to connect to a Wi-Fi router with a new SSID and encryption key, you must set it so that all devices you want to connect to the Wi-Fi router can be connected. Simply select the SSID and enter the key, but it is troublesome to type in the character string, especially when the number of smartphones is large. You have to set up all your family's smartphones. Let's think of a way to make this a little easier.

Let's teach you a technique that allows you to easily connect by scanning the QR code created exclusively for the set Wi-Fi router.

If you suddenly spoil it, it's a method of scanning and registering a QR code. This method is an Android QR code scanner app, and you can use an app that supports Wi-Fi connection. In iOS, the standard camera supports QR code scanning in "iOS 11 or later", so it is an effective means for both. Anyway, if you set the connection setting of the Wi-Fi router to QR code, you can connect by just reading it with your smartphone.

By the way, it is different from the method of reading the QR code provided by the manufacturer and starting the setting of the Wi-Fi router, so do not confuse it. This time, I will introduce a technique to use the SSID and encryption key of the set Wi-Fi router as a QR code.

First, create a QR code. Since the format of the character string for connection used for creation is fixed, create the original character string according to this.

The encryption method is WPA2 Personal (WPA2-PSK), and the character string for connection of [* 1] is

"WIFI: S: (SSID); T: WPA; P: (encryption key) ;;"

It has become.For example, if the SSID is "! Cat-a" and the encryption key is "tBqvy7aPct.ze6rJ"

"WIFI: S:! Cat-a; T: WPA; P: tBqvy7aPct.ze6rJ ;;"

Will be. Convert this to a QR code.

To create a QR code, use the creation site or QR code app. On Android, some devices have a function to display the QR code of the connected Wi-Fi router. Anyway, if you create a QR code for your Wi-Fi router, screenshot it, save it, or print it out, you can simply read the QR code on a compatible device to complete the connection.

However, as you can see from the character string before conversion, the created QR code contains the encryption key in plain text. Be careful when handling it [* 2].

[* 1] …… Enter any of “nopass”, “WEP”, and “WPA” in the encryption method item “T” according to the setting. There is no distinction between WPA and WPA2, and "WPA" is OK. Note that it is not "WPA2".

[* 2] …… The QR code displayed in this article is set for writing. Even if you search hard near the editorial department, you can not connect, so it is not bad.

Let's take a look at creating using the QR code reader "Q". This app is made in collaboration with Denso Wave Co., Ltd., which developed the QR code, so the recognition speed is terribly fast. It's also a recommended app as a scanner. Compatible with both Android and iOS.

Your Android smartphone "Huawei Honor 9" can display the connection settings of the connected Wi-Fi router as a QR code.If there is such a function, you can connect immediately by reading the QR code reader "Q" It has a function to create a QR code from a character string. Select "≡" → [Create QR code] Select "Text" Enter the character string and tap [Create QR code] A QR code for access is created.You can save with the disk icon on the upper right

Unfortunately, the "official QR code reader" Q "" used to create it does not support the Wi-Fi connection link, so use the following "QR code scanner" app to connect on Android.

Scan the saved or printed QR code for Wi-Fi connection with the "QR Code Scanner" app When you tap [Connect to network], "Connected to network" is displayed and you are connected to the Wi-Fi router. Make sure the Wi-Fi is connected

For iPhones and iPads with iOS 11 or later, scan using the standard camera app. All you have to do is connect to the network or you will be notified, just tap the notification to connect.

If you scan the saved or printed QR code for Wi-Fi connection with the standard "Camera" app, the notification to connect to the network will be displayed. Tap the notification to [Connect] and expand the notification like this. display.You can also tap [Connect to network] here to confirm that you are connected to the Wi-Fi router.

Unfortunately, iOS 11 and earlier do not support Wi-Fi connection using QR code. With the "QR Code Reader" app below, you can copy and paste the SSID and encryption key, so you can save a little labor. If you have a large number of units, it is convenient to use the technique of batch registration using the method using the connection profile, so I will introduce it from the next time onwards.

When scanned with the "QR Code Reader" app, it is recognized as Wi-Fi connection information. Tap [Copy Password] and enter the encryption key by copy and paste.

If you read this QR code and remember the connection, you will be able to easily connect even if you change the SSID or encryption key. When it comes to security, it's very effective to change the SSID and encryption key from time to time. If you remember how to connect using this QR code, connecting your smartphone is surprisingly easy.