Intro_myDAQ - University of Florida Department of Electrical Computer Engineering EEL 3111 Summer 2011 Revision 3 Dr E M Schwartz TAs Xin Guan and

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University of Florida EEL 3111 — Summer 2011 Dr. E. M. Schwartz Department of Electrical & Computer Engineering TAs: Xin Guan and Ode Ojowu Page 1/6 Revision 3 21-May-11 Introduction to the NI myDAQ The NI myDAQ is a low-cost portable data acquisition (DAQ) device that uses NI LabVIEW-based software instruments, allowing students to measure and analyze real-world signals. A myDAQ (shown in Figure 1) is ideal for exploring electronics and taking sensor measurements. Combined with NI LabVIEW on the PC, students can analyze and process acquired signals and control simple processes anytime, anywhere. (See also the myDAQ User Guide and Specifications available on the class website. Fig. 1 NI myDAQ picture (left) and myDAQ Connection Diagram (right) The myDAQ provides analog input (AI), analog output (AO), digital input and output (DIO), audio input and output, DC power supplies, and digital multimeter (DMM) functions in a compact USB device. Integrated circuits supplied by Texas Instruments form the power and analog I/O subsystems of a myDAQ. Figure 2 depicts the arrangement and function of the NI myDAQ subsystems. Details of the hardware configuration could be found in myDAQ User Guide and Specifications . The myDAQ provides a soft front panel (from LabVIEW) to control the functionality of the device, which can launch several instruments including a digital multi-meter (DMM), Oscilloscope, function generator, Bode analyzer, Dynamic Signal Analyzer (DSA), Arbitrary Waveform Generater (ARB) and Digital Reader/Writer. The myDAQ also provides the express VI of such instruments which can be included in the user written LabVIEW program to perform the supposed functionality.
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University of Florida EEL 3111 — Summer 2011 Dr. E. M. Schwartz Department of Electrical & Computer Engineering TAs: Xin Guan and Ode Ojowu Page 2/6 Revision 3 21-May-11 Introduction to the NI myDAQ Fig. 2 NI myDAQ Hardware Block Diagram I. Launching the DMM Panel a. The first thing that you need to do is to connect the myDAQ to your computer with the USB cable that came with the myDAQ. When the connection is established, a blue LED (light) near the USB connection point on the myDAQ will light up, indicating that the myDAQ has power. b. Start NI ELVISmx Instrument Launcher by going to the Windows Start menu and selecting Programs -> National Insturments -> NI ELVISmx for NI ELVIS & NI myDAQ-> NI ELVISmx Instrument Launcher. The following instrument panel will appear like Fig. 3. Fig. 3 NI ELVISmx Instrument Launcher The buttons in light show all the available instruments in NI myDAQ. The buttons in gray show the instruments which are previously available in NI ELVIS workstation and currently not available in NI myDAQ.
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University of Florida EEL 3111 — Summer 2011 Dr. E. M. Schwartz Department of Electrical & Computer Engineering
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Intro_myDAQ - University of Florida Department of Electrical Computer Engineering EEL 3111 Summer 2011 Revision 3 Dr E M Schwartz TAs Xin Guan and

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