LabVIEW programming portfolio

Measuring very low current with a
Keithley Model 6517A Electrometer
interfacing with LabVIEW

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when: Internship assignment at Liquavista, 2014/1.

description: A controlled voltage is applied to a dummy panel and its leakage current is measured. After the measurement is done a report avaluating the quality of it is generated. The user is able to configure and choose several recipes to apply to the panel. This was my very first LabVIEW application. All documentation and codes are confidential.

"Breaking Bad" name generator

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when: 2014/2.

description: While I was watching the TV show BrBa I decided to implement the apperance of the show's cast and crew names by myself as a fun challenge. The user can choose for a random or selected element or elements found inside the name to be displayed in bold letters. The interface is quite simple and it needs some more graphical improvements but it is working nicely.

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  • UI of BrBa VI UI of BrBa VI
    UI showing the two options for finding an element inside my own name.

Smith Chart background graph

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when: 2015/1.

description: This sub VI was design to plot several graphs on the smith chart for a project of a teacher of mine. The porpuse was to study the characterists and stability of a microwave circuit design.

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  • Smith Chart background plot Smith Chart background plot
    An example of several plots on top of the Smith Chart.

Current measurement
with adjustable Hall sensor

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when: Final project for Instrumentation class (ENG 04457), 2015/2.

description: Measurement of current with an iron ring with a Hall sensor A1360. The sensor adjusts itself, based on curves of calibrated measurements, to set a range of measurement. A myRIO was used connected to an iPad (user interface), through wifi connection, to show the user the value of the current. All measurements and programming of the sensor were made using a LabVIEW program, all automated. That is acquiring a voltage from the sensor that is related with range, evaluating if it needs to change and if so programming the sensor through digital outputs connected to it. The programming sensor works on digital pulses and each option is a set of different pulses. For more information about the project please check the report at the link below. Abstract in English.

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  • UI on the iPad's screen UI on the iPad's screen
    iPad screenshot of user's interface.

Implementation of a SDR using a
RTOS and FPGA

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when: Final project for graduation, 2016/2.

description: Using a myRIO to sample, modulate, transmit, receive, demodulate and reconstruct an audio signal. Constellation diagram, FFT and STFT are presented to the user. It is possible to insert AWGN to the transmitted signal.

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  • 1k with noise 1k with noise
    Tx and Rx 1kHz tonal signal and noise addition.
  • 1k with noise 1k with noise
    Tx and Rx 1kHz and 10kHz multitonal signal and noise addition.
  • AM modulation, IQ signal representation. Made for viasualization purposes. AM modulation, IQ signal representation. Made for viasualization purposes.
    AM modulation, IQ signal representation. Made for visualization and study purposes.