Archiv für die ‘WiFi’ Kategorie

Apple finally released the iPad!

27 Januar 2010

And – it’s like a biiiig iPod.

(Picture source Jim Wilson – New York Times)

Here are some pictures and facts

  • OS is based on iPhone OS
  • All iPhone apps will also run on the iPad – “virtually unmodified”
    The iPhone apps can run in a black box in the middle of the screen or by doubling the pixels and fill the screen, but loose resolution
  • The new SDK for the iPad is released today
  • Of course, apps from the iPhone can be modified so they are perfect for the iPad
  • Almost “life-size” virtual keyboard
  • Synchronize data from PC or MAC
  • The iPad works in both landscape and portrait mode, like the iPhone. It has a virtual keyboard, access to photo collections, direct access to iTunes’ surfeit of content.
  • The new iBooks app will allow you to read an purchase eBooks. So Apple is on a collision course with Amazon.

» Weiterlesen: Apple finally released the iPad!

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Geschrieben inGeneral, Mac, WiFi

Exploring WiFly RN-131 GSX Embedded WiFi Module

3 Oktober 2009

I made the next step in the direction of WiFi. Some days ago I surfed the Internet for an embedded WiFi module for less money. And finally I found the WiFly GSX modules from Roving Networks. Their slogan is “Wireless for less” ;)

So I ordered some evaluation boards (about 100€/pcs) for me and two collegues who are studying with me at the NTB. Our goal is to have fun with wireless applications.

The RN-131 GSX Module is a 802.11 b/g wireless LAN Module with a lot of features – Details see datasheet.

If you already have a GSX Module you can use my LabView source below to show the UDP packets which the module sends in default configuration every 7 seconds.

The packets include

  • MAC address of AP
  • WiFi-Channel
  • RSSI (quality)
  • local TCP port
  • RTC (real time clock value)
  • NTC temperature option (if temperature sensor connected to module – otherwise sensor 7)
  • Spare sensor reading
  • ASCII time
  • Version string with date code and Device ID string

This information can be used to open a TCP connection to the module or to configure it over WiFi. The module has to be in the same subnet as your PC or MAC if you want to receive the packages.

Here are some pictures of the Module in action:

Here is the LabView (8.6) Source as LLB: wifly-monitoring-distribution

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Geschrieben inAVR, LabView, Mikrokopter, WiFi