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Details about  WiShield 3.0 for Arduino WiFi -- 16Mbit Flash, Compatible with Mega, UNO & Due.

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WiShield 3.0 for Arduino WiFi -- 16Mbit Flash, Compatible with Mega, UNO & Due.
Item Sold
Item condition:
Jul 25, 2012
US $64.99
FREE Economy Shipping from outside US | See details
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Item location:
510000, China


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Seller assumes all responsibility for this listing.
Last updated on  Jul 22, 2012 23:25:40 PDT  View all revisions

Item specifics

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition

Arduino Make and DIY

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Note: To make this module simple, we have disabled the external antenna and enabled the on-board PCB antenna. So external antenna is not necessary now and the coming module will be without external antenna.


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 vedio 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 ATMega328 board.

So here is the difference:

 UART wifi moduleArduino Wifi Shield
Data Speed
112.5K bps
2M bps
Configurationeasy,through GUI or codethrough code
System requrementNeed UART MCUNeed SPI and more programmable flash
AES supportNoYes


  • Compatible with Arduino UNO, Mega, Duemilanove and so on
  • Compatible with most none-Arduino platform with SPI such as PIC
  • Power: 5V DC
  • Interface: SPI
  • Plug and play solution
  • Compatible with Arduino UNO, Diecimila, Duemilanove and Mega series
  • IEEE Std. 802.11b/g/n compatible
  • Data Rate: 1 and 2 Mbps
  • Uses SPI for host communication (max speed 25MHz)
  • Easy access reset button on-board
  • Solder-switchable interrupt pin usage between INT0 (port D, pin 2) and digital pin 8 (port B, pin 0)
  • 16 Mbit on-board DataFlash, can be used to store webpages, sensor logs, etc.
  • Extra port to facilitate usage for non-Arduino platform such as PIC.
  • Supports 802.1x, 802.1i security: WEP, WPA-PSK, and WPA-2-PSK.
  • Hardware Security Engine for AES and RC4-based ciphers
  • Support AdHoc.

Example for 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[] = {192,168,1,122}; //configure IP address of this module, usually one bewteen
unsigned char gateway_ip[] = {192,168,1,1}; // router or gateway IP address, usually do not need to change it. 
unsigned char subnet_mask[] = {255,255,255,0}; // subnet mask for the local network, usually do not need to change it. 
const prog_char ssid[] PROGMEM = {"elechouse"}; // SSID of networks, max 32 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 = {"12344321"};// max 64 characters

// WEP 128-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 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, // Key 0
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 1
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 2
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // 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


Note: this is the 2nd version. All the PCB problems are fixed.

Shipping Information

Free-shipping items are shipped via HK Air Mail. Refer to this documentto learn shipping time to your country.

Delivery Time & Handling

Refer to this document to learn shipping time to your country. Hanlding time usually will be 1~3 workdays 

International Shipping

  • Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.
  • We always mark our customers' parcels as a gift. So usually tax is free. You can also contact us to specify the custom value you want. 
  • We ship to worldwide. If your location is very far away, please allow your parcel more time to arrive.

Shipping Service 

  1. Economy Int'l Shipping (By default this is the free shipping choice): it is untrackable during the shipping process.
  2. Standard Int'l Shipping:This shipping is trackable in Hongkong Post and Post Website of your country.The only difference between this shipping and Economy Int'l Shipping is that a registered ID/NO. will be generated. So you can track it. You only need to pay very little extra registering fee on this kind of shipping.
  3. Express Delivery Shipping Way:This shipping service contains DHL, UPS,and Fedex. Usually they takes 4 workdays. If you need your items shipped in this way, please contact us and we will change the shipping fee. 

Returns and Refund Policy 

We will change your goods or do the refund if you are not satisfied with our products for any reason. All the money (including shipping fee) will be back to you if the problem comes from our product's quality.

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