what's the number of times the letter "e" appears in:
hello, i created an oscilloscope sketch for stereo audio vector visualization on x and y axis.
note: this is not a regular oscilloscope, this is x-y mode oscilloscope to be used as a vector monitor.
the inspiration came from a youtube video techmoan when he bought a vintage tuner with a cool crt vector scope, and his video on drawing images on the scope using jerobeam fenderson’s audio files. i thought that would be cool to have but not at that expansive price point!
i couldn’t find what i was looking for on arduino so i made it myself.
i am posting it here for people who wants to try nice audio visualisation and for those who would like to help me optimize it even more to increase the sample rate to the max!
create debug outputs to see if the code actually enters the waiting loops while(!readflag). if not, that means the adc finishes before the other code is done, so that reduces the sample rate.

user
There are eighty-eight "e"s in the text you provided.
assistant