Talking Instrumentation

Discussion in 'General Technical Questions and Answers' started by KB1RHB, Dec 14, 2019.

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  1. KB1RHB

    KB1RHB Ham Member QRZ Page

    I have had more than one occasion to be working on repair,
    cal of various pieces of equipment and needed to do adjustments
    in awkward places but have to look at DMMs or meters while looking
    at adjustment point. Ugh.

    If you take an Arduino board, connect it to PC, you can create the
    basic interface to make talking instrumentation. And code in blocks,
    rather than C.

    Here is a simple talking voltmeter done with Snap4Arduino ( IDE, free).
    Adding freq or period or T or whatever should not be too difficult.
    Freq and Period, there is not a program block in Snap4Arduino for that, I
    think using a PSOC to do general DAQ like functions, then pass that
    to Arduino would give one a very flexible foundation. PSOC to Arduino
    using I2C interface.

    This example basically uses Arduino to measure the V, then passes that to Windows
    and the value is converted to speech and spoken by PC. This sample is just
    a simple first proof of concept.

    A NANO board or UNO board ($ 4 or $6) great starting point.

    Just thinking should not be too difficult to use in blind user applications as well.
    Like readout freq, but I think one would have to do some C coding as well for that.


    Regards, Dana.
    WD0GOF likes this.
  2. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Difficult to peak or dip an adjustment that way, which is why I wouldn't use a digital meter for those, either.

    For "making a measurement," a digital meter or one that talks to you should be fine. But doing "alignments" and other adjustments which require monitoring a parameter while adjusting it: A big, easy to read analog meter is impossible to beat.

    I have a few instruments here, including a piano, a clarinet and a few electronic keyboards. They all talk to me in various ways.:)
  3. KA9JLM

    KA9JLM Ham Member QRZ Page

    Do something like satellite receivers do, Change the frequency of a audio tone.
    KD2ACO likes this.

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