Merge branch 'trunk' of https://github.com/dplassgit/arduino into trunk

Author: dplassgit

keyboardv1/Schematic_VG4_keyboard_v2_3.pdf

@@ -55,7 +55,7 @@ void loop() {
     if (useSerialLibrary) {
       Serial.print("Raw char: "); Serial.print(key); Serial.print(" decimal 0b"); Serial.println(key, BIN);
     }
-    if (key != 0) {
+    if (key != 0 && key != 255) {
       // If the keyboard has no power it will return all lows, sending back an avalanche of
       // zeros. Ignore (for now?)
       sendChar(key);