July 20th, 2008 Eee PC Internal Upgrades

Eee PC Internal Upgrades

We’re talking about everything, every device that you can think off hass been integrated into the Eee PC by these guys. All the info is nicely presented with pictures, so anyone with some electronic skills should be able to make hi’s Asus Eee PC trully custom. These are some of the devices that were integrated into the Eee PC:

  • USB hub
  • GPS with antenna
  • Bluetooth
  • Card reader
  • Flash drive
  • Power switch
  • Wifi
  • FM transmitter
  • Modem
  • System memory
  • Touch screen
  • Temperature sensor
  • Heatsink

Eee PC Internal Upgrades: [Link]

Read my Asus Eee PC Review

July 20th, 2008 SAEBRTrack Satellite Tracke

SAEBRTrack Satellite Tracke

SAEBRTrack is a low earth orbit (leo) satellite tracking system. It was originally designed to use inexpensive TV antenna rotators, like the “Orbit 360” sold at many hardware stores. However, the author recently modified the code and the hardware to work with the Yaesu G-5500 elevation-azimuth dual controller. The G-5500 certainly is a much better way to go, even with the fairly high price tag.

SAEBRTrack Satellite Tracke: [Link]

July 20th, 2008 Lead Acid Battery Charger

Lead Acid Battery Charger

The project is dedicated to helping people build a high performance sealed lead acid battery charger. The project is also available as a partial kit with a custom made PCB. However, there is also enough information for you to build your own PCB (or use Vero board) or change the design to suit your own purpose.

Lead Acid Battery Charger: [Link]

Arduino Wirelessly Programming System Based on XBee

The Arduino system offers an easy and open-source method for programming microcontrollers. Normally this means using a serial cable or USB cable attached directly to the microcontroller project. But what if your project is floating in a weather balloon, glued to the bottom of a swimming pool or baked into a loaf of bread? It would be great to upload code changes wirelessly, and even greater if you could do it from several kilometers away.

The following example demonstrates how to build a complete wireless solution for uploading code to a remote Arduino microcontroller using a couple of XBee radios, and a handy function for accomplishing wireless resets.

Arduino Wirelessly Programming System Based on XBee: [Link]

July 19th, 2008 ARDF Timer / Controller

ARDF Timer / Controller

The ARDF controller was created after a request to be able to play random audiofiles for an ARDF transmitter, most existing designs were based on an 16F84, a somewhat aging design and better controllers are currently available. Also most controllers had a 5-10 mA current drain which can be improved, this design requires less than 400 uA.

To allow a very small controller footprint and flexible configuration the timer is not configured with (dip) switches but via a serial connection and a host PC. The memory option is optional and is only required for a wave file playback, all other options (CW, Single Tone, Tone Sequences and Audio Effects) do not require the I2C memory chip.

ARDF Timer / Controller: [Link]



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