As a newbie, I am playing with various timer functionalities provided with an Arduino Uno. Currently, I have written a small piece of code to produce a high frequency PWM (5kHz). The idea of the project I have in my mind will have those high frequency signals. I was wondering, just to satisfy my curiosity and not to take anything for granted till I see it myself, how I can visualize the PWM signal. It could be real-time or saving a piece of the signal and viewing it later in a plotting tool.
Any suggestions or ideas?
Thanks
Bu
PS: Currently I do not have an oscilloscope. So, that option goes out of the window.
Output it as audio, use a mic & view it with Visual Analyzer on your PC http://www.sillanumsoft.org/download.htm
PC sound card can do 44.1K sampling, so 5K won't look too bad. Might not be very square-wavish after going thru a speaker.
I am not sure what you mean, do you want the arduino to output some visual indication or do you want a test tool like an osciloscope to see if you are getting it right?
I did an animated picture of a PWM signal on this page http://www.thebox.myzen.co.uk/Tutorial/PWM.html
You did not say how you produced it but altering the timer values is the best way as there is no processor overhead.