Arduino Code: auslagerung in neue Funktion printState

push.d/skeleton

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+case "$1" in
+	ON)
+		echo 'ON'
+	;;
+	HALF)
+		echo 'HALF'
+	;;
+	OFF)
+		echo 'OFF'
+	;;
+esac

push.sh

@@ -0,0 +1,28 @@
+#!/bin/sh -e
+
+DEV='/dev/ttyUSB0'
+DIR='push.d'
+stty -F "$DEV" 9600 -brkint -icrnl -imaxbel -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke
+
+# Warte bis Device $DEV vorhanden ist
+while [ ! -c "$DEV" ]; do
+	sleep 2
+done
+# sende beliebiges Zeichen an $DEV
+echo '?' >> "$DEV" &
+
+while true; do
+	# wenn $DEV vorhanden
+	if [ -c	 "$DEV" ]; then
+		# dann lese zustand
+		read -r state < "$DEV"
+		case "$state" in
+			ON|HALF|OFF)
+				run-parts --arg="$state" "$DIR"
+			;;
+		esac
+	else
+		# sonst warte
+		sleep 10
+	fi
+done

status/status.ino

@@ -83,6 +83,7 @@ boolean transition() {
   if (state_previous == STATE_OFF && state_current == STATE_ON) {
     digitalWrite(LED_R, LOW);
     digitalWrite(LED_G, HIGH);
+    printState(state_current);
     stateBegan = millis();
     return true;
   }
@@ -93,16 +94,19 @@ boolean transition() {
   if (state_previous == STATE_ON && state_current == STATE_HALF) {
     digitalWrite(LED_G, LOW);
     digitalWrite(LED_Y, HIGH);
+    printState(state_current);
     return true;
   }
   if (state_previous == STATE_ON && state_current == STATE_OFF) {
     digitalWrite(LED_G, LOW);
     digitalWrite(LED_R, HIGH);
+    printState(state_current);
     return true;
   }
   if (state_previous == STATE_HALF && state_current == STATE_OFF) {
     digitalWrite(LED_Y, LOW);
     digitalWrite(LED_R, HIGH);
+    printState(state_current);
     return true;
   }
   if (state_previous == STATE_HALF && state_current == STATE_ON) {
@@ -115,17 +119,32 @@ boolean transition() {
     digitalWrite(LED_G, LOW);
     digitalWrite(LED_Y, LOW);
     digitalWrite(LED_R, HIGH);
+    printState(state_current);
     return true;
   }
   return false;
 }
 
-// information über aktuellen Zustand auf die Serielle Verbindung schreiben
-void sendState() {
-  if (state_current == STATE_ON || state_current == STATE_HALF) {
-      Serial.print("1");
-  } else {
-      Serial.print("0");
+// schreibt den aktuellen Zustand auf die Serialeverbindung
+void printState(byte state) {
+  switch (state) {
+    case STATE_OFF:
+      Serial.print("OFF\n");
+      break;
+    case STATE_HALF:
+      Serial.print("HALF\n");
+      break;
+    case STATE_ON:
+      Serial.print("ON\n");
+  }
+}
+
+void handleSerial() {
+  if (Serial.read() != -1) {
+    printState(state_current);
+    do {
+     delay(10);
+    } while (Serial.read() != -1);
   }
 }
 
@@ -158,10 +177,8 @@ void loop() {
   } else if (state_current == STATE_HALF && calcStateTime() >= TIME_OFF) {
     changeStateTo(STATE_OFF);
   }
-
-  // kommunizieren
-  sendState();
-  delay(10);
+  // auf Eingaben auf der Serialenverbindung reagieren
+  handleSerial();
 }
 
 // Debouncer Klasse