nonBlokingBlink

Author: sblantipodi

arduino_bootstrapper/core/BootstrapManager.cpp

@@ -34,4 +34,21 @@ void BootstrapManager::bootstrapLoop(void (*manageDisconnections)(), void (*mana
 
   mqttClient.loop();
 
+}
+
+// Blink LED_BUILTIN without bloking delay
+void BootstrapManager::nonBlokingBlink() {
+  unsigned long currentMillis = millis();
+  if (currentMillis - previousMillis >= interval && ledTriggered) {
+    // save the last time you blinked the LED
+    previousMillis = currentMillis;
+    // blink led
+    digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
+    blinkCounter++;
+    if (blinkCounter >= blinkTimes) {
+      blinkCounter = 0;
+      ledTriggered = false;
+      digitalWrite(LED_BUILTIN, HIGH);
+    }
+  }  
 }

arduino_bootstrapper/core/BootstrapManager.h

@@ -20,6 +20,7 @@ class BootstrapManager {
   public:
     void bootstrapSetup(void (*manageDisconnectionFunction)(), void (*manageHardwareButton)(), void (*callback)(char*, byte*, unsigned int));
     void bootstrapLoop(void (*manageDisconnectionFunction)(), void (*manageQueueSubscription)(), void (*manageHardwareButton)());
+    void nonBlokingBlink();
 
 };
 

arduino_bootstrapper/core/Helpers.cpp

@@ -3,6 +3,11 @@
 
 String lastMQTTConnection = "OFF";
 String lastWIFiConnection = "OFF";
+unsigned long previousMillis = 0;     
+const long interval = 200;           
+bool ledTriggered = false;
+int blinkCounter = 0;
+const int blinkTimes = 6; 
 
 void Helpers::smartPrint(String msg) {
 

arduino_bootstrapper/core/Helpers.h

@@ -5,6 +5,12 @@
 
 extern String lastMQTTConnection;
 extern String lastWIFiConnection;
+// Blink LED vars
+extern unsigned long previousMillis;     // will store last time LED was updated
+extern const long interval;           // interval at which to blink (milliseconds)
+extern bool ledTriggered;
+extern int blinkCounter;
+extern const int blinkTimes; // 6 equals to 3 blink on and 3 off
 
 const int DELAY_10 = 10;
 const int DELAY_50 = 50;