Build a wireless home-power monitoring system
The concept of Microprinting as described by Tom Taylor is "an experiment in physical activity streams and notification, using a repurposed receipt printer connected to the web". Using this and the works of others as inspiration, I set about making my own Internet connected printer.
In this project I have fixed an accelerometer to a 10-segment display (it has 10 green LEDs put into a single component) and used an Arduino to control it.
A plug computer is a tiny, low power server, intended to provide network-based services within the home. It is an always-on system, and can serve data and applications to computing devices within the home. It can also be a bridge between home computing devices and Internet-based services.
If your phone isn't listed here (U.S. customers) and you've purchased it within the last few years (the FCC Web site currently does not provide information on models certified before 1998), you can request the SAR information from the manufacturer or your
It involves using five lasers instead of just the one.
This website details the design and construction Wave Bubble: a self-tuning, wide-bandwidth portable RF jammer. The device is lightweight and small for easy camoflauging: it is the size of a pack of cigarettes. (I love cigarettes)
2.4Ghz Antenna Oblique View Above is the antenna plugged into the Volt meter. It works pretty well, pointing it at the SUN also gets a reading! Point it at the microwave oven and it will exceed the Millivolt scale! With a little work I'm sure you could bu
Solar Cell Large: Packaged solar cell with barrel plug termination. This is a custom cell produced for SFE - not a small toy surplus item! This unit is rated for 8V open voltage and 310mA short circuit.
A Transistor can be thought of as a device that is active in only One Direction: It can draw more or less current through its load resistor (sometimes referred to as a pull-up resistor).
With some modification, I create my own version of FM Telephone bug complete with stripboard layout. Theortically, the frequency range is from 88MHz to 94MHz but you may experiment with the coil structure to tune it