Differences between Wifi shield and YUN shield

Some users may not sure of the difference between the wifi shield and Yun shield. Actually, there are some similar features with both shields, but there are also some differences, you can read the following introduction and will know the differences:

This WiFi Shield connects your Arduino or Crowduino to the internet wireless. Just connect it to your wireless network with a few simple instructions, you can start to control your applications through the internet now. This Wifi Shield utilizes a RN171 which is a complete, standalone TCP/IP wireless network module, to provides your Arduino/Crowduino internet connectivity via 2-pin serial port. Also, on the board there is an on-board micro SD slot ready for your store your data, making you applications such as weather monitoring easily!

You can make much more applications now, such as the smart home networks, robot controls or personal weather stations, etc. Also, a basic Arduino library is ready for you to help to enter the world of Arduino Wifi!


Yun Shield is designed to solve the Internet connectivity and storage issue for Arduino Board. Alike the Arduino Yun, it provides a Linux system, WiFi, Ethernet to the Arduino board for connectivity. Yun Shield runs Open Source OpenWrt system (Same system as runs in Arduino Yun) and it is fully compatible with Arduino IDE v1.5.4 or later.

Yun Shield is the ideally choice for Arduino Projects which require various internet connections and more storage. Basically, Yun Shield + Leonardo equally to the official Arduino Yun, but Yun Shield is more flexible because it can work with other Arduino board such as Uno, Duemilanove, Mega etc. And Yun Shield uses external wifi antenna which provides stability and possibility for various environments.

After your reading, you may know more or if you still have some question or puzzle, you can visit their wiki in: http://www.elecrow.com/wiki/index.php?title=WiFi_Shield