Re: End whistling into the mic

Jerry Gaffke

Of course, in most cases you can just switch to CW mode for testing.
But need a tone to check the mike amp and modulator

On Thu, Jan 25, 2018 at 01:26 pm, Jerry Gaffke wrote:
I got tired of saying AHHHHHHH after about 30 seconds, so spent the following 30 seconds adding a line to the Arduino sketch (anywhere) in the setup() function:

    tone(A0, 750);   

Join to automatically receive all group messages.