‰ NOW 13 WPM ‰ TEXT IS FROM SEPTEMBER 2017 QST PAGE 37 ‰ AND PUNCTUATION. GENERALLY, A DAH DASH DELAY VARIABLE IS THREE TIMES THE LENGTH OF A DIT DOT DELAY VARIABLE. SPACES BETWEEN DITS AND DAHS ARE EQUAL TO ONE DIT LENGTH. EACH CHARACTER SEQUENCE IS FOLLOWED BY A CHARACTER DELAY EQUAL TO FOUR DIT LENGTHS DEFINED BY THE CHAR DELAY VARIABLE. NOTE THAT THE DIT AND DAH DELAY VARIABLES ARE RESET FOLLOWING EACH CHARACTER PADDLE SEQUENCE, BECAUSE THE PADDLE STROKE TIMING IS DIFFERENT FOR EACH CHARACTER. THE FINAL STATEMENTS OF THE SKETCH UNDER THE VOID LOOP ƒ QST DE W1AW ‰ STATEMENT READ THE KEYBOARD KEYSTROKES, ASSEMBLE THE CHARACTER BYTES, SEND THE KEYSTROKES FOR THE CHARACTER, AND OUTPUT THE CHARACTER BYTES TO THE SERIAL INTERFACE. TESTING THE PORTABLE KEYBOARD INTERFACE YOU HAVE NOW LOADED THE SKETCH INTO THE PRO MINI MICROCONTROLLER, ASSEMBLED THE OPTO ISOLATOR BOARD, WIRED THE TWO BOARDS TOGETHER, AND COMPLETED CONNECTIONS TO THE EXTERNAL USB, STEREO KEYER JACK, AND POWER CONNECTORS. NOW ITS TIME TO ‰ END OF 13 WPM TEXT ‰ QST DE W1AW ƒ