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.
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