‰ NOW 10 WPM ‰ TEXT IS FROM SEPTEMBER 2016 QST PAGE 41 ‰ TO IT FROM A WINKEY USB KEYER AT VARIOUS SPEEDS, AND FOUND THAT IF THE LCD WAS SCROLLED, THE ARDUINO CW TRAINER WOULD MAKE MISTAKES AT HIGHER SPEEDS. I REMOVED THE SCROLLING AND FOUND THAT THE DECODER WILL WORK UP TO ABOUT 22 WPM ON MY 16 MHZ CPU. HIGHER SPEED CPUS SHOULD ALLOW FASTER DECODING OF CW. LEAVING A LITTLE SPACE BETWEEN CHARACTERS WILL IMPROVE DECODING AT ‰ END OF 10 WPM TEXT ‰ QST DE W1AW ƒ