guys i want to make a project that involves pulse input of either sinusoidal or square wave and frequency of the pulse is made available to a lcd display as output using microcontroller.... plz help
Convert the input signal to a square wave, then to a pulse. In the microcontroller code, count the number of pulses in a given unit of time (S, mS, uS, depending of the range of frequencies to be measured) and then display that count to LCD. The number of pulses/unit of time is the frequency in Hz, kHz or MHz depending on unit of time.
thanx bt i know the process.....problem is that how to design a circuit for the same and what microcontroller should i use plus the source code is also required....i dnt have sufficient data
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Picaxe recommended for easy counter-based measurement
The easiest uC to learn and program is the Picaxe, because you can program it in BASIC. It's available in sizes from 8 to 40 pins, depending on how many in/out ports you want, and has a variety of built-in functions, I think including a counter for applications such as yours.
In the UK: Information: rev-ed.co.uk Supplier: techsupplies.co.uk (= shop for rev-ed) Technical Support Forum: www.picaxeforum.co.uk
Search criteria = pic & micro & frequency & counter
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