channel reset on divider change WIP

README.MD

@@ -0,0 +1,8 @@
+TODO:
+- Add min and max values
+- External clock
+- Switch to U8G2 for screen
+- Save state to EEPROM when stopped
+
+Timer library available here
+https://github.com/PaulStoffregen/FlexiTimer2

software/GToE/GToE.ino

@@ -2,7 +2,7 @@
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
 #include <RotaryEncoder.h>
-#include <MsTimer2.h>
+#include <FlexiTimer2.h>
 #include <EEPROM.h>
 
 #define SCREEN_ADDRESS 0x3C
@@ -13,18 +13,10 @@
 #define ENC_D1_PIN 4
 #define ENC_D2_PIN 3
 #define START_STOP_BTN_PIN 14
-
 //Output pins are defined in the array below
 
-
-//TODO :
-//Add min and max values
-//External clock
-//Switch to another timer lib (FlexiTimer?)
-//Switch to U8G2 for screen
-//Save state to EEPROM when stopped
-
 int outsPins[6] = {5, 6, 7, 8, 9, 10};
+
 int outsValues[6] = {1, 2, 4, -4, 1, 1}; //positive - divide, negative - multiply, 0 - off
 int outsPeriods[6];
 int outsClocksCounts[6] = {0, 0, 0, 0, 0, 0};
@@ -36,7 +28,9 @@ int clockCount = 0;
 
 int bpm = 120;
 int bpmPeriod;
+int bpmClockCount;
 bool isPlaying = 0;
+int needToResetChannel;
 
 int displayTab = 0;
 int displayTabOld;
@@ -67,8 +61,8 @@ void setup() {
   updateScreen();
   updatePeriods();
 
-  MsTimer2::set(1, internalClock); // 1ms period
-  MsTimer2::start();
+  FlexiTimer2::set(1, 1.0/1000, internalClock); // 1.0/1000 = 1ms period
+  FlexiTimer2::start();
 }
 
 void loop() {
@@ -84,11 +78,21 @@ void internalClock() {
       if (outsClocksCounts[i] == 0) {
         digitalWrite(outsPins[i], HIGH);
       }
-      if (outsClocksCounts[i] == 15) {
+      if (outsClocksCounts[i] == 15) {  //15ms pulse
         digitalWrite(outsPins[i], LOW);
       }
       outsClocksCounts[i]++;
     }
+    if (bpmClockCount < bpmPeriod) {
+      bpmClockCount++;
+    } else {
+      bpmClockCount = 0;
+      if (needToResetChannel>=0) {
+        outsClocksCounts[needToResetChannel] = 0;
+        updatePeriods();
+        needToResetChannel = -1;
+      }
+    }
   }
 }
 
@@ -103,6 +107,12 @@ void updatePeriods() {
   }
 }
 
+void resetClocks() {
+  for (int i = 0; i<6; i++) {
+    outsClocksCounts[i] = 0;
+  }
+}
+
 void checkInputs() {
   clockMode = digitalRead(INPUT_CONNECTED_PIN);
   if (clockMode != clockModeOld) {
@@ -131,14 +141,15 @@ void checkInputs() {
       bpm = bpm + change;
     } else {
       outsValues[displayTab-1] = outsValues[displayTab-1] + change;
+      needToResetChannel = displayTab-1;
     }
-    updatePeriods();
     updateScreen();
     encPositionOld = encPosition;
   }
 
   if (!digitalRead(START_STOP_BTN_PIN) && !buttonPushed) {
     isPlaying = !isPlaying;
+    resetClocks();
     buttonPushed = true;
   } else if (digitalRead(START_STOP_BTN_PIN) && buttonPushed) {
     buttonPushed = false;
@@ -152,7 +163,7 @@ void updateScreen() {
   display.setCursor(0,0);
   display.setTextSize(1);
   if (displayTab == 0) {
-    display.setTextColor(SSD1306_BLACK, SSD1306_WHITE);
+    display.setTextColor(SSD1306_BLACK, SSD1306_WHITE);resetClocks();
     display.print(F(" "));
     display.setTextColor(SSD1306_WHITE);
     display.print(F(" bpm "));