Saelig Company Inc.'s USB DrDAQ is a combination scope/data-logger/IO board with 15 I/O
channels. Software provided with the unit provides 100kHz-bandwidth
oscilloscope and datalogger, with extra input and output capabilities straight
out of the box. Built
into the USB DrDAQ are a microphone, light sensor, RGB LED, oscilloscope and
resistance inputs, 4 digital I/O ports, 3 sensor ports, a pH/redox sensor input
and a signal generator output. The unit is powered from the USB port so there
is no need for an external power supply. USB DrDAQ samples at 1MSa/s and can be
used as a single-channel 8-bit 100kHz oscilloscope or spectrum analyzer with
the ability to measure voltages up to Â±10V.
USB DrDAQ's 10-bit D/A output
features a 10-bit signal generator - a standard function generator, but also an
arbitrary waveform generator (AWG), so customized waveforms can be created. An
RGB LED can be used to display any color for a variety of indicator purposes.
Two of the I/O ports can be used as pulse counting inputs, or PWM (pulse-width
modulation) outputs. The sensor ports can be used with a range of temperature,
humidity and oxygen sensors, or with custom sensors built by the user.
USB DrDAQ will find its way into
a wide variety of applications from education to research for signals at audio
frequencies and beyond. It is supplied with a free Windows Software Development
Kit (SDK) with fully documented function calls to control all aspects of the
device, so it can be integrated into other programs in C, C++, Microsoft Excel
and National Instruments LabVIEW.
Samsung's Galaxy line of smartphones used to fare quite well in the repairability department, but last year's flagship S5 model took a tumble, scoring a meh-inducing 5/10. Will the newly redesigned S6 lead us back into star-studded territory, or will we sink further into the depths of a repairability black hole?
In 2003, the world contained just over 500 million Internet-connected devices. By 2010, this figure had risen to 12.5 billion connected objects, almost six devices per individual with access to the Internet. Now, as we move into 2015, the number of connected 'things' is expected to reach 25 billion, ultimately edging toward 50 billion by the end of the decade.
NASA engineer Brian Trease studied abroad in Japan as a high school student and used to fold fast-food wrappers into cranes using origami techniques he learned in library books. Inspired by this, he began to imagine that origami could be applied to building spacecraft components, particularly solar panels that could one day send solar power from space to be used on earth.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.