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Jac Londe

Portable PA Systems. AmpliVox Wireless Powered Speaker Voice Projector Kit - 0 views

  • AmpliVox Wireless Powered Speaker Voice Projector Kit This is the most professional and simple solution in wireless presentations systems on the market with black carpeted acoustic speakers and wireless 50 watt amplifier. Adds S1204 Remote Wireless Speaker, universal carrying case, and Two Tripods to The Voice Projector (SW225) for your complete presentation kit!
  • Product Description Audience Size: up to 2,000. Room Size: up to 20,000 sq. ft. No messy cables to trip over. This is a professional portable public address complete sound system with built-in wireless in a  compact lightweight black carpeted cabinet PLUS a wireless powered dual module speaker that can be placed up to 300 feet away. The Wireless Voice Projector is a complete sound system that contains AmpliVox’s powerful 50 watt multimedia stereo amplifier with built-in receiver and 3 mic inputs plus two built-in Jensen designed 6” x 8” oval speakers.  The Powered Dual Module Speaker has a built-in 50 watt amplifier. With built-in tripod mounts both components are designed for placement on a tripod, media cart, or permanent mounting.  The SW225 Wireless Voice Projector can dramatically enhance presentations and communication with mixed media sound line-in for CD tape player or computer projector. It includes both headset and lapel mic and transmitter plus audio cables for laptop & projector.  Each component can be powered with 10 D-cell alkaline batteries (not included) for up to 200 hours; S1460 International AC Adapter/recharger; or S1465 Rechargeable Nicad Battery Pack (requires S1460). Features • Wireless Voice Projector with 2 built-in Jensen speakers • Wireless powered dual module speaker (total of 4 speakers) • For audience size up to 2,500 • For rooms up to 20,000 sq. ft. • 50W multimedia stereo amplifier with built-in receiver • Includes lapel & headset mic with transmitter • Dual Wireless Capability: 2 presenters can be wireless with optional 2nd wireless mic kit. • Built-in Tripod Mount • 2 Tripods • Rugged nylon reinforced Carrying Case on Wheels with Luggage handle What's in the Box • Wireless Voice Projector (SW225) • Wireless powered dual module speaker • Lapel & headset mic with transmitter • 2 Tripods • Rugged nylon reinforced Carrying Case on Wheels with Luggage handle Warranty 6 Years Electronics
Jac Londe

Find Your IP and MAC Addresses On Windows XP | 2000 | NT - 0 views

  • Click the Start menu button on the Windows taskbar.Click 'Run...' on this menu.Type 'cmd' in the text box that appears. A command prompt window launches on the desktop.In this command window, type 'ipconfig /all'. Details are shown for each of the computer's network adapters. Computers installed with VPN software or emulation software will possess one or more virtual adapters.The 'IP Address' field states the current IP address for that network adapter.The 'Physical Address' field states the MAC address for that adapter.
Jac Londe

Researchers create super-small transistor, artificial atom powered by single electrons - 0 views

  • Researchers create super-small transistor, artificial atom powered by single electrons
  • The SketchSET—which is the first single-electron transistor made entirely of oxide-based materials—consists of an island formation that can house up to two electrons. The number of electrons on the island—which can be only zero, one, or two—results in distinct conductive properties. Wires extending from the transistor carry additional electrons across the island.
  • One virtue of a single-electron transistor is its extreme sensitivity to an electric charge, Levy explained. Another property of these oxide materials is ferroelectricity, which allows the transistor to act as a solid-state memory. The ferroelectric state can, in the absence of external power, control the number of electrons on the island, which in turn can be used to represent the 1 or 0 state of a memory element. A computer memory based on this property would be able to retain information even when the processor itself is powered down, Levy said. The ferroelectric state also is expected to be sensitive to small pressure changes at nanometer scales, making this device potentially useful as a nanoscale charge and force sensor.
Jac Londe

Daedalus Projects - 0 views

  • CrazyFlie flight video
  • The copter itself is organised around the main CPU. The job of this CPU is to acquire the physical measurement given by the gyroscopes and accelerometers and to control the motors to keep the copter stable. This is done by a regulation loop which controls the motors speed 250 times per second. The radio communication has a pretty low bandwidth and is used to send commands to the copter and receive telemetry data from it. The CPU program can be updated by radio.
  • The computer runs control and telemetry programs. The control program reads the input from a game-pad and sends control commands to the copter. We also have programs that can configure the copter regulation parameters and log the measurements in order to make easier to tune the regulation. All the development is done on Windows and Linux. Indeed we are 3 to work on this project, two of us work on Linux and one is mainly on Windows. Using FLOSS permit to handle that in a very effective way. We are mainly using the GCC compiler from CodeSourcery for the copter program compilation, GNU Make for the project build, Mercurial for the source control, and python/pyusb for the communication with the copter. All these softwares works seamlessly on both Linux and Windows and made the project pretty easy to handle. The distance between the motors (horizontally and vertically) is around 8 cm and the total weight is around 20 g.
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  • The top of the board contains the sensors and the control/communication electronic: The JTAG/Serial connector permit to program the processor and to communicate debug messages. The Main CPU is a STM32 Cortex-M3. It is clocked at 64MHz from the internal oscillator. The 2 Axis X-Y Gyro is an invensense IDG500. It has an analog output and thus is connected to the CPU analog to digital converters. The 1 Axis Z gyro is an invensense ISZ500. As the X-Y gyro this is an analog chip connected to the CPU analog to digital converters. The 2.4GHz Radio is based on a nRF24L01+ chip from Nordic Semiconductor. It is actually a breakout board sold by SparkFun. The radio is connected to the CPU via a SPI port. The 3 Axis Accelerometer is a SMB380 from Bosch. It is connected to the CPU via an I²C bus.
  • Here nothing particular, except that the little battery is taped on the bottom of the copter. The battery comes from a Silverlit x-twin plane and actually permit 4.5min of flight time.
  • Under the battery we mostly have power supply and the “power” electronics: The charge connector accepts 5V and permits to charge the battery The power switch permits to power the copter either from the charge connector or from the battery. The 5V step-up permits to increase the power voltage from the 3~4V coming from the battery to 5V. The two 3.3V linear regulators, reduces the 5V to power the copter electronic. The digital and analog 3.3V are generated independently. This was made to reduce the noise on the analog components (here it is the two gyros, a quite critical part). Finally at the four sides we have the motors transistors. The power for the motors pass on the top and bottom of the part of PCB that hold the motors. It can be noted that we also have the battery charging chip just at the right of the 3.3V regulators. It is a classical MAX1555 and is working pretty well. The idea with the step-up was to get a more stable voltage when the battery is depleted and also to remove some of the noise coming from the motor electonic. Anyway, this boars is capable to work without by using 2.8V linear regulators instead. So most likely the step-up will be excluded on the next version and we also plan to integrate the radio on board. The motors and propellers are taken from a Silverlit X-twin plane. They are powered by the battery voltage.
  • The copter is controlled via a python program running on the PC. A Playstation bluetooth gamepad is used to pilote it.
Jac Londe

Installing the SDK | Android Developers - 0 views

  • In this document 1. Preparing Your Development Computer 2. Downloading the SDK Starter Package 3. Installing the ADT Plugin for Eclipse 4. Adding Platforms and Other Components Available Components Recommended Components
  • This page describes how to install the Android SDK and set up your development environment for the first time.
Jac Londe

GlobalScale Technologies - D2Plug - 1 views

  • D2Plug is a Developer Kit for the Marvell PXA510 Highly Integrated SoC with PC-like performance.
  • The D2plug can be used by software developers, Independent Software Vendors (ISV), and System Integrators (SI); for evaluation, Application development, Rapid Prototyping, and interoperability testing for a “cloud” based service deployment. The complete solution in an attractive, innovative and “fan-less” enclosure will also be available for bundling solutions for product release with custom branding.
Jac Londe

Processing.org - 0 views

  • Processing is an open source programming language and environment for people who want to create images, animations, and interactions. Initially developed to serve as a software sketchbook and to teach fundamentals of computer programming within a visual context, Processing also has evolved into a tool for generating finished professional work. Today, there are tens of thousands of students, artists, designers, researchers, and hobbyists who use Processing for learning, prototyping, and production.
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