WizFi250快速入門指南
WizFi250 Quick Start Guide (Youtube Link)
https://www.youtube.com/watch?v=ZNrBz-HZsUw
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Overview
WizFi250 offers a quick, easy, and cost-effective way for device and appliance manufacturers to add WiFi capabilities to their products. WizFi250 provides UART and SPI interfaces which enable connections to any embedded design utilizing an 8/16/32-bit microcontroller via simple AT commands. WizFi250 is an ideal solution for organizations with limited or no WiFi or RF expertise, as it not only reduces RF design time but also removes the burden of testing and certification, allowing customers; allowing customers to focus on their core application, product, or expertise. WizFi250 is compliant with 802.11b/g/n.
特點& 優勢
- 單波段2.4GHz IEEE802.11b/g/n Wi-Fi 模塊
- 集成射頻功率放大器:不需要天線校準
- 1MBFlash存儲器，128KBSRAM和1MB串行Flash
- 通過動態的電源管理模式，實現低功耗
- 與大部分AP具有高度的兼容性
- 緊湊的尺寸，可以適應任何一種目標設備，甚至是手持設備如手機，PDA等
- 主要接口: UART , SPI
- 支持強大的網絡配置
- 軟AP (強大的記憶力, L2切換)
- OTA (空中下載固件更新)
- Wi-Fi 直連
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Features
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Single band 2.4GHz IEEE 802.11b/g/n
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Integrated RF power amplifier
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Supports wireless data rates up to 65Mbit/s
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1MB Flash Memory, 128KB SRAM, 1MB Serial Flash
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Low power consumption & excellent power management performance extend battery life.
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Small size suitable for low volume system integration.
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Easy for integration into mobile and handheld device with flexible system configuration.
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Lead Free design which supporting Green design requirement, RoHS Compliance.
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Device Package : –PA: 28x20mm ; ..-CON: 17x20mm
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Serial Interface : UART, SPI
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UART Max Baud : 1843200 bps
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Powerful Web server provides
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Soft AP
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Enough memory retention
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Wi-Fi Security (WEP, WPA/WPA2PSK)
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L2 Switching
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OTA(Over The Air F/W Upgrading)
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WizFi250方框圖
相關產品
| 開發板 |
WizFi250-EVB |
WizFi250 Evaluation Board
The WizFi250 EVB is the evaluation board for testing WizFi250 and prototyping development. WizFi250 EVB is composed of a WizFi250 evaluation board and a WizFi250 module.
Feature Identification
Button Description
| WizFi250 Reset | Through this button, user can restart WizFi250 module. |
| Function | Through the function button, user can enter specific mode without AT Command. ♦ Factory Recovery : When doing Boot or Reset, press the button over 3.5 seconds ♦ AP Mode : When module is working, press it once. ♦ OTA Mode : When module is working, press it twice. ♦ Factory Default : When module is working, press it three times. |
| Arduino Board Reset | With this button, user can restart Arduino board. |
LED Description
| UART RX/TX | Indicate UART RX/TX Status |
| Power LED | Indicate Power On/Off of WizFi250 |
| Mode LED | Indicate Data/Command Mode ♦ LOW(ON) : Data Mode ♦ HIGH(OFF) : Command Mode |
| Wi-Fi LED | Indicate Wi-Fi Association ♦ LOW(ON) : Wi-Fi is associated ♦ HIGH(OFF) : Wi-Fi is not associated |
Start Serial to Wi-Fi
This chapter explains how to set WizFi250 in order to exchange data with peer system. This picture shows the environment for using Serial to Wi-Fi as example. In this example, WizFi250 is set to the TCP server and peer system is set to the TCP client. And then data is exchanged between WizFi250 and the peer system.
Using Function Button & Web Server Interface
This section explains how to set WizFi250 using web server in order to use serial to Wi-Fi application. (If you Use the function button, you can launch web server easily.)
Procedure for setting serial to Wi-Fi is explained below.
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1. Press the “Function Button” one time in order to run AP mode and launch the web server. If WizFi250 is changed to AP mode successfully, Wi-Fi LED will be on and you can see WizFi250’s SSID by your PC
| Default information of WizFi250 AP Mode | |
|---|---|
| SSID | WizFi250_AP_0008DCXXXXXX |
| Security | WPA2 Mixed |
| Security Key | 123456789 |
| IP Address | 192.168.12.1 |
| Gateway Address | 192.168.12.1 |
LED results of WIZFI250:
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2. Connect to WizFi250’s SSID …by inputting default password (123456789) and WizFi250’s IP address or URL (wizfi250.wiznet.com) in your web browser. After that input the user id and user password. ( Default ID : admin, Default Password : admin )
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3. If you select “S2W Setting & Scan Network” menu, …the web page will be shown as below.
If WizFi250 is set successfully, it shows the success message … as in the following picture on the right.
If you select <Next_Step> button, you can move to next page.
| WizFi250 TCP/IP Settings guide | |
|---|---|
| Modes | AP or Station (connect to AP) |
| Protocol | TCP/UDP (Server / Client) |
| Remote IP | Connecting device's IP address |
| Remote Port | Connecting device's Port |
| Local Port | Module's Port |
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4. Select WizFi250's DHCP Mode.
It includes DHCP or stactic IP setting.
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5. Firstly, input the password of …the AP you want to join and click “Join“ button to connect to that AP.
After setting up, you will see “Device Started Web server and access point stopped. See UART for further information.” message in web browser. It means that WizFi250 will try to connect to the selected AP.
Important note: If you input the wrong password of AP, you need to redo all procedures.
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6. WizFi250 will be associated … to the AP you select… and you can use TCP server in WizFi250.
This picture is the serial message when WizFi250 has set successfully.
| BOOT | Enter boot mode ♦ SHORT : Start in boot mode ♦ OPEN : Start in application mode |
| 5V Power | Alternative choice for 5V power supply |
| GPIO Pin | Through this pin, user can use GPIO signal |
Interface Description
| UART1 Interface | Alternative choice for Serial interface. |
| SPI Interface | Through these pins, user can control SPI interface. |
| USB Interface | This provides power supply & Serial interface Default serial information: ♦ Baud rate : 115200 ♦ Data rate : 8 ♦ Stop bits : 1 ♦ Parity : None ♦ Flow control : None |
Exchanging data with a peer system
This section explains how to exchange data between WizFi250 and Peer System.
This example describes the structure of data flow.
After TCP connection is done and if WizFi250 receives serial data, the serial data will be sent to peer system immediately and Wizfi250 can receive data from peer system.
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