Added ext MIDI start and stop handeling

Software/Gravity/Gravity.ino

@@ -5,7 +5,7 @@
 #include <U8g2lib.h>
 #include <avr/wdt.h>
 
-const char version[5] = "v:1.b";
+const char version[5] = "v:1.1";
 
 #define SCREEN_ADDRESS 0x3C
 
@@ -105,10 +105,10 @@ int playingModes[6];  // should be renamed to currentSubdivs or something. Updat
 int playingModesOld[6];
 
 unsigned int pulsePeriod;
-bool isPlaying = false;
+bool isPlaying;// = false;
 bool isRecording = false;
 bool recordToNextStep = false;
-bool MIDIClockRecived = false;
+bool MIDIClockReceived = false;
 
 unsigned int tickCount = 0;
 unsigned int pulseCount = 0;
@@ -190,7 +190,6 @@ const uint8_t stkL[569] U8G2_FONT_SECTION("stk-l") =
   
 
 void setup() {
-  //Serial.begin(9600);
   Serial.begin(31250);
 
   pinMode(ENC_BTN_PIN, INPUT_PULLUP);
@@ -221,12 +220,12 @@ void setup() {
 }
 
 void loop() {
-  checkInputs();
   if (masterClockMode == 2) {
     receiveMIDI();
   } else if (masterClockMode == 1 && extClockPPQN == 1) {
     calculateBPMTiming();
-  }
+  } 
+  checkInputs();
 }
 
 void sendMIDIClock() {
@@ -238,18 +237,21 @@ void sendMIDIStart() {
 void sendMIDIStop() {
   Serial.write(0xFC);
 }
+
 void receiveMIDI() {
-  if(Serial.available() > 0) {
-    if (Serial.read() == 0xF8) { //Clock
-      MIDIClockRecived = true;
-    //} else if (Serial.read() == 0xFA || Serial.read() == 0xFB) { //start and continue
+  //if(Serial.available() > 0) {
+    int msg = Serial.read();
+    if (msg == 0xF8) { //Clock
+      MIDIClockReceived = true;
+    } else if (msg == 0xFC) { //stop
+      isPlaying = false;
+    } else if (msg == 0xFA || msg == 0xFB) { //start and continue
       isPlaying = true;
-    //} else if (Serial.read() == 0xFC) { //stop
-    //  isPlaying = false;
     } 
-  }
+  //}
 }
 
+
 void clock() {
   if (isPlaying) {
 
@@ -283,14 +285,14 @@ void clock() {
       }
     }
 
-    if (masterClockMode == 2 && MIDIClockRecived) {  // MIDI should happen here (needs testing)
+    if (masterClockMode == 2 && MIDIClockReceived) {  // MIDI should happen here (needs testing)
       tickCount = 0;  //to make things happen in the main clock function
       if (pulseCount < (PPQN - 1)) {
         pulseCount++;
       } else {
         pulseCount = 0;
       }
-      MIDIClockRecived = false;
+      MIDIClockReceived = false;
     }
 
     // pull low all outputs after set pulse length