Hello Mark: I've been using your code. Very nice. Easy to use and modify, even for a digital dunce like me.
I've been using an Arduino and your code to key my 20 meter QRP transmitter. I watch the Reverse Beacon Network to see how I'm getting out. I think your code let me discover something about RBN: there may be a lower "speed limit" on the skimmers. I noticed that when I left your code at the default 12 wpm, I was not picked up by the skimmers. When I called CQ the old fashioned way (with my hand!) at 15 wpm I got plenty of spots. This morning I changed the speed setting on your code to 15 wpm and -- sure enough -- immediately got picked up by an RBN station.
Anyway, thanks for the code and for your Brainwagon blog.
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