This frequency meter project squeezes a lot of performance out of the ATtiny2313 microcontroller. That chip does all of the work, measuring the frequency on the input pin as well as multiplexing ...

Frequency meters, also called "wavemeters", are what our grandparents used to determine the frequency of an unknown signal source. Engineers will fight tooth and nail to get the $100,000 spectrum ...

[mircemk] had previously built a frequency counter using an Arduino, with a useful range up to 6 MHz. Now, they’ve implemented a new design on a far more powerful STM32 chip that boosts the ...

1) 0:pwm1/duty/set 0.5 pwm3/polarity/set Sets the polarity (+ or -) 0:pwm1/polarity/set "+" pwm3/started/set Start/stops the generator 0:pwm1/started/set yes pwm3/started/get Gets the status of ...

Since the A weighting network corresponds to the tendency of the ear to discriminate against low frequency sounds, it is often employed in decibel measurements of community noise. Such measurements ...

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Abstract: The standards in this section apply to the following kinds of indicating electrical instruments for direct current and for alternating current: (1) ammeters (2) voltmeters (3) wattmeters (4) ...