Learn how to use an event structure and while loop to create an interactive VI front panel with event-driven execution of the calculation instead of polled execution that continually expends CPU resources.


Discrete-time convolution represents a fundamental property of linear time-invariant (LTI) systems. Learn how to form the discrete-time convolution sum and see it applied to a numerical example in which an input sequence x[n] is convolved with a system impulse response h[n].


Learn how to create and use global variables, including: create a VI to hold multiple global variables, place a global variable in your VI, change the mode from write to read, and set default values. Global variables reduce wiring clutter when many subVIs require a common system-wide value. See the tutorial for more information.


Learn the basic principles behind I2C serial communication, including signaling waveforms, terminology, and related configuration of the I2C Express VI. Refer to the I2C-bus specification for complete details: . This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Basic concepts related to the FFT (Fast Fourier Transform) including sampling interval, sampling frequency, bidirectional bandwidth, array indexing, frequency bin width, and Nyquist frequency.


Learn the basic principles behind UART serial communication, including signaling waveforms, terminology (baud rate, parity, stop bits), and related configuration of the UART Express VI. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Learn how to apply the graphical flip and slide interpretation of the convolution integral to convolve an input signal with a system's impulse response.


Practical details necessary to using the LabVIEW built-in FFT subVI to compute the magnitude spectrum of a time-domain signal, including: array size N, polar form conversion of the complex-valued output, scaling by N to obtain normalized spectrum, and retaining only the lower half of the output array for display.


Set up an AC Analysis to plot the frequency response (both magnitude and phase) of a circuit.


Learn basic operation of the Multisim two-channel oscilloscope to display waveforms.


Learn basic image handling techniques in LabVIEW: read/write image files, print image information, display images, and process images as either 1-D or 2-D arrays.


This video tutorial explains how the loading effect changes the desired output of a voltage divider and derives an equation you can use to predict the effect of loading. The video tutorial also discusses the relative advantages and disadvantages of the choice of voltage divider resistors. This video belongs to page of the series Electrical Circuits with NI myDAQ at .


Find node voltages with a DC Operating Point analysis.


Learn about the piezoelectric effect as a means to sense mechanical stress and vibration as a voltage, and learn how to use a charge-to-voltage amplifier as an interface circuit between a piezo film sensor and the analog input. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Learn the basic principles behind SPI serial communication, including signaling waveforms, terminology, and related configuration of the SPI Express VI. Refer to Section 8 of the M68HC11 Reference Manual for complete details on SPI: . This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Learn about the Butterworth filter magnitude response and its two parameters for cutoff frequency and filter order. Also find out how to use this response as the basis of a high-pass, band-pass, and band-stop filter.


Place and configure the Function Generator, an instrument that produces three basic waveform shapes: sine, triangle, and square.


Learn how to use LabVIEW to read and write.wav audio files, extract the audio information as a 1-D array for processing, listen to the audio from within the LabVIEW VI, and view the audio information as a waveform plot.


The rotary encoder, or quadrature encoder, combines a rotary knob and two switches that open and close in a staggered fashion as the knob turns. With suitable decoding of the switching waveforms the knob angle and rotation direction can be sensed. Learn the rotary encoder principles of operation, interfacing techniques for the MXP and MSP connectors, and necessary circuitry to debounce the switches. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


The linear potentiometer can serve as a pair of variable resistors. The resistance can be changed in real time with interative simulation through use of a slider or keypress.


Learn how to use the Wattmeter to measure average power and power factor of a load operating in sinsuoidal steady state (AC).


A concise introduction to the National Instruments myDAQ product. This video belongs to page of the series Electrical Circuits with NI myDAQ, .


Display the mouse coordinates with a combination event structure and while-loop structure.


Learn how to deploy a LabVIEW application as the start-up app to run automatically when you power-on your NI myRIO. Also learn how to disable the start-up app. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Walk through the Servo demo LabVIEW project and learn how to create the pulse-position control signal for the GWS S03N STD servo. Download the project files at . This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Learn how to use the LabVIEW PWM Express VI to create a pulse-width-modulated signal on the NI myRIO MXP and MSP connectors. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Review of signed integer interpretation of a binary pattern. This video belongs to page of the series Digital Circuits and Systems with LabVIEW FPGA at .


Learn how to use the built-in subVI Convolution to convolve two short sequences, and how to visualize the results with stem plots.


Use a Parameter Sweep analysis to plot resistor power as a function of resistance.


Learn how to use the Wattmeter instrument to measure DC power.


Discover the operating principles of a photointerrupter (also known as a photogate) and learn how to set up an interface circuit for a digital input. Also learn about photointerrupter applications to count events and measure linear and rotational speed. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Walk through the Rotary Encoder demo LabVIEW project to learn how to interpret the quadrature-encoded switching patterns as a step count and direction. Download the project files at . This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Use a nested DC Sweep analysis to plot the drain characteristic of an n-channel enhancement MOSFET; the drain characteristic is drain current vs. drain-source voltage at various levels of gate-source voltage.


Use a nested DC Sweep analysis to plot the base characteristic of an NPN bipolar junction transistor (BJT); the base characteristic is base current vs. base-emitter voltage at various levels of collector-emitter voltage.


Learn the basic principles of measuring electrical current with a shunt resistor and a voltmeter. This video belongs to page of the series Electrical Circuits with NI myDAQ at .


Audio signal processing experiments can be done anywhere, at any time using NI LabVIEW and NI myDAQ. In this short video we create a 3 band audio equalizer bringing the theory to life using a music player and speakers connected to the NI myDAQ audio ports.


From the minimum feature size determine the necessary camera-to-object distance to obtain the desired spatial resolution and field-of-view (FOV). This video supplements the book NI myRIO Vision Essentials Guide, a free download with associated LabVIEW project files available at . See the book's appendix for links to all of the related video tutorials.


Use a DC Sweep analysis to plot the transfer characteristic of an n-channel enhancement MOSFET; the transfer characteristic is drain current vs. gate-source voltage for a diode-connected MOSFET (gate and drain tied together) to ensure the MOSFET operates in saturation.


Learn how to plot the behavior of one or more circuit variables due to sweeping a voltage source through a range of values.


Use a DC Sweep analysis to plot the current-voltage characteristic of a diode; also known as an I-V characteristic, a plot of the diode current as a function of voltage.


Set up a Transient Analysis to plot time-domain circuit response waveforms.


Learn the basic principles of an ammeter, an instrument that measures electrical current. This video belongs to page of the series Electrical Circuits with NI myDAQ at .


The four-channel oscilloscope conveniently displays multiple waveforms for interactive simulation.


Learn the basic principles of a voltmeter, an instrument that measures electrical voltage (also called potential difference). This video belongs to page of the series Electrical Circuits with NI myDAQ, .


An interactive demonstration of FFT properties showing the relationship between a sinusoidal time-domain waveform and its frequency-domain spectrum. Includes concepts such as aliasing, effect of increasing array size on frequency resolution, spectral leakage, and windowing as a way to reduce spectral leakage. You can get the LabVIEW VI that you see in the video at the NI Developer Zone Community: ; see the attachment at the end of the document.


Use a nested DC Sweep analysis to plot the collector characteristic of an NPN bipolar junction transistor (BJT); the collector characteristic is collector current vs. collector-emitter voltage at various levels of base current.


Learn about the physical construction of a potentiometer, and learn how to set up the potentiometer as a voltage divider to serve as a proportional rotation sensor while minimizing power supply current and loading effects. This video supplements the book NI myRIO Project Essentials Guide, a free download available at .


Create digital signal sequences with the Word Generator. Also learn how to use ABM (Analog Behavior Model) voltage sources to translate the fixed voltage output of the Word Generator (0.5V and 4.5V) to any required levels.


Set up a grid-based calibration to correct camera lens and tangential distortion: print the grid target, convert the image to grayscale, and evaluate the performance of the available distortion models. This video supplements the book NI myRIO Vision Essentials Guide, a free download with associated LabVIEW project files available at . See the book's appendix for links to all of the related video tutorials.


Learn how to use the NI ELVISmx Oscilloscope ( Scope on the NI Instrument Launcher) as implemented for the NI myDAQ. With this application you can view the waveforms on the pair of analog inputs AI0 and AI1 as well as the left and right channels of Audio In. This video belongs to page of the series Electrical Circuits with NI myDAQ at .


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