Designing a radio with a single type of transistor
What do you do once you are already a skilled radio designer and restorer?
Wireless
Android controlled door opening Linux WiFi router
Sunlight Labs, known for opening America’s government, had a problem when they recently moved facilities. Creating new keys for team members was becoming costly, so they figured out an alternative method of providing secure access using a WRT54GL, easily sourced components, and a trusty copy of Make: Electronics.
Seeing radio waves with a light bulb
Using a low power amateur radio transmitter and a simple light bulb receiver circuit, we see how radio waves and electromagnetic induction transmit energy and signals wirelessly through the air. We also see how dipole and Yagi antennas radiate their energy in different patterns. Read on to build your own dipole receiving antenna! Subscribe to […]
Firefox fires up on Android
It’s not quite ready for an alpha release, but it’s nice to know that development of Firefox on Android has progressed to the stage where they’ve actually got a screenshot.
16-year-old’s cave radio wins the 2009 International Science Fair
Alexander Kendrick’s project consists of a low-frequency radio allowing a person to send text messages from almost 1,000 feet underground. Read his fascinating story on NPR.com. [via Slashdot]
Wireless door access using the TI hackable watch
The release of the TI Chronos development kit is exciting not only because it is a cool piece of hardware, but I expect to see many great projects that cleverly exploit the resources of the Chronos. This nifty hack wirelessly unlocks a door using the built-in accelerometer to detect coded taps on the watch. [via […]
Prepaid wireless remote car starter
It’s beyond me why anyone would want to start a car before they got into it, but if you’re looking for an interesting aftermarket mod for the next car show, this prepaid wireless controlled remote car starter is just the thing.
