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Persona de contacto Mr. Wilson
6-703, FUYUAN COMMUNITY, YUFU ROAD, LONGGANG DISTRICT, SHENZHEN, CHINA, Muping, Sichuan
SPI
High-Speed WiFi Shield Module -Arduino Compatible
Description:
Getting you Arduino into
WiFi network is not a fresh news any more. We introduced our UART
WiFi module which easily gets your Arduino into WiFi. So why this
one? Another WiFi module? Is it necessary?
Yes, it is definitely necessary. Users who use UART WiFi
module will find that the operation is very easy, and progrmming is
pretty easy, too. Basically once you configured it well, you don't
need to do further configuring work in the future until the WiFi
network changes. Each time while it is powered up, it accesses to
the WiFi network automatically. However, the data speed may not
satisfy your needs. Because the data go through UART, and UART
speed is limited.
Well, this new Arduino
WiFi Shield sends and receives data through SPI interface. The max
data speed is 2Mbps. Basically you can tranmit picture or video
wirelessly. Also, we thie new shield supports AES encryption, more
safe while transmitting your data. This shield requires much
programming code. So if you are Arduino users, you should at least
use ATMega**8 board.
So here is the
difference:
Feature:
1, Compatible with Arduino UNO, Mega, Duemilanove and so
on
2, Compatible with most none-Arduino
platform with SPI such as PIC
3, Power: 5V
DC
4, Interface: SPI
5, Plug and play solution
6, Compatible
with Arduino UNO, Diecimila, Duemilanove and Mega series
7, IEEE Std. **2.*1b/g/n compatible
8, Data Rate: 1 and 2 Mbps
9, Uses SPI for host communication (max speed *5MHz)
*0, Easy access reset on-board
*1, External antenna with high sensitive
*2, Solder-switchable interrupt pin usage between
INT0 (port D, pin 2) and digital pin 8 (port B, pin 0)
*3, *6 Mbit on-board DataFlash, can be used to
store webpages, sensor logs, etc.
*4, Extra
port to facilitate usage for non-Arduino platform such as
PIC.
*5, Supports **2.1X, **2.1I security:
WEP, WPA-PSK, and WPA**-PSK.
*6, Hardware
Security Engine for AES and RC*-based ciphers
*7, Support AdHoc.
Test With
Arduino
1. Pug in the module into
Arduino
2. Change the code
Open the example of WebServer in Arduino IDE, then make the
following changes:
// Wireless configuration
parameters
***************************************-
Unsigned char
local_IP[] = {**2, **8, 1, **2}; //configure IP address of this
module, usually one bewteen
**2.**8.1.**0~**2.**8.1.**9
Unsigned char gateway_IP[] =
{**2, **8, 1, 1}; // router or gateway IP address, usually do not
need to change it.
Unsigned char subnet_mask[] = {**5,
**5, **5, 0}; // subnet mask for the local network, usually do not
need to change it.
Const prog_char ssid[] PROGMEM =
{"elechouse"}; // SSID of networks, max *2 bytes.
As shown in the picture above, SSID is
"elechouse"
Unsigned char
security_type = 3; // 0 - open; 1 - WEP; 2 - WPA; 3 - WPA2 As shown
in the picture above, mine is WPA2
//
WPA/WPA2 passphrase
Const prog_char security_passphrase[]
PROGMEM = {"*******1"}; // max *4
characters
// WEP ***-bit keys, Since my
security type is WPA2, no need to change anything in the following
code.
// sample HEX keys
Prog_uchar wep_keys[]
PROGMEM = { 0X*1, 0X*2, 0X*3, 0X*4, 0X*5, 0X*6, 0X*7, 0X*8, 0X*9,
0X0a, 0X0b, 0X0c, 0X0d, // Key 0
0X*0, 0X*0, 0X*0, 0X*0,
0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, // Key
1
0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0,
0X*0, 0X*0, 0X*0, 0X*0, // Key 2
0X*0, 0X*0, 0X*0, 0X*0,
0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0, 0X*0 // Key
3
};
// setup the wireless
mode
// infrastructure - connect to AP. If you connect to
a router, this is the choice.
// adhoc - connect to
another WiFi device
Unsigned char wireless_mode =
WIRELESS_MODE_INFRA;
Then upload the code to
Arduino.
3. Result
After the IND LED is on, in your browser, visit HTTP:
//**2.**8.1.**2
País: | China |
N º de Modelo: | - |
Precio FOB: | Obtener el precio más reciente |
Lugar de origen: | - |
Precio de pedido mínimo: | - |
Cantidad de pedido mínimo: | - |
Detalle de embalaje: | - |
El tiempo de entrega: | - |
Capacidad de suministro: | - |
Tipo de pago: | - |
Grupo de productos : | arduino board and accessories |