BoosterVision is selling a 1-watt transmitter/receiver and CCD camera system for high-power rocketry. Not bad for $280. An included 12db Radome RX antenna increases range up to 15,000 feet. One Watt Hi-Power Transmitter / Hi-Gain Antenna System – [via] Link Related: Model, sport rocketry reference source – Link Estes educator – Free resources for model […]
Mlarsen writes – In this instructable I will explain how to make a simple RFID pet food access control system. This system uses a stand-alone RFID system that can be purchased either pre-assembled or in kit form if you desire to do the soldering yourself, and also wish to save a few dollars in the […]
This is interesting, “Blastwavelabs” bought a portable cell phone jammer from a company called DealExtreme, it appears the jammer ships set to frequencies outside North America but it can be modded to work by turning the trim pots a bit (small potentiometers to tune/trim the voltage)… I’m not sure that would actually work that great […]
OpenFM’s Open source radio transmitter – When Adapted Consulting’s co-Founder, Frederic Renet couldn’t find a commercial radio that was energy efficient, easy to repair and affordable, he decided to build his own. These requirements were crucial for where he was installing radios in rural Africa. Based on that first model, Fred has designed a new […]
cryptonoid writes – First thing i did was flash dd-wrt firmware on it. Since FONera router has gpio pins i decided to use one of those pins to control AC loads or turn a switch ON/OFF remotely. There’s a similar/better way of controlling AC loads – check out dd-wrt wiki. However, i only had one […]
Frequent Maker and Roomba hacker extraordinaire Tobdbot writes – The Parallax RFID reader is a pretty cool bit of tech. For $40 you get a reader with integrated antenna that outputs ASCII at 2400bps. Unfortunately, the integrated antenna means you can’t place RFID tag sensing in tight spaces. You can however circumvent the built-in antenna […]
David writes – The AirPort Express receives the Wi-Fi music signal from iTunes, converts it to analog, and then injects it into the old boombox through a car cassette adapter. The belt raises the tweeters to brighten the sound. All components were items I salvaged from closets, including the boombox-with-no-line-input, the Old Belt, and the […]
