Move tube to separate file

metronom.ino

@@ -1,6 +1,5 @@
 #include "SAMDTimerInterrupt.h"
 #include "SAMD_ISR_Timer.h"
-#include "grove_alphanumeric_display.h"
 
 #define HW_TIMER_INTERVAL_MS 10
 SAMDTimer ITimer(TIMER_TC3);
@@ -8,7 +7,6 @@ SAMD_ISR_Timer ISR_Timer;
 
 void TimerHandler(void) { ISR_Timer.run(); }
 
-Seeed_Digital_Tube tube;
 
 const int COUNTDOWN = 240;
 const int PERIOD_MS = 1000;
@@ -28,12 +26,7 @@ volatile float temperature = 0.0;
 void setup() {
   initButton();
   initTemperature();
-
+  initTube();
-  // Wire initialized by temperature sensor
-  tube.setTubeType(TYPE_4, TYPE_4_DEFAULT_I2C_ADDR);
-  tube.setBrightness(15);
-  tube.setBlinkRate(BLINK_OFF);
-  tube.setPoint(true,true);
 
   ITimer.attachInterruptInterval_MS(10, TimerHandler);
   ISR_Timer.setInterval(PERIOD_MS, runMetronome);
@@ -47,19 +40,8 @@ void runMetronome() {
 
     digitalWrite(BUTTON_LED_PIN, countdown % 2 ? HIGH : LOW);
   } else if (countdown == 0) {
-    //tone(BUZZER_PIN, 1000, 100);
+    //tone(BUZZER_PIN, 300, 100);
   }
 }
 
-void updateTube() {
-  char tube_str[5];
-
-  if (countdown <= 0)
-    sprintf(tube_str, "%4u", (unsigned int) (temperature * 100.0));
-  else
-    sprintf(tube_str, "%4u", countdown);
-
-  tube.displayString(tube_str);
-}
-
 void loop() {}

tube.ino

@@ -0,0 +1,22 @@
+#include "grove_alphanumeric_display.h"
+
+Seeed_Digital_Tube tube;
+
+void initTube() {
+  // Wire initialized by temperature sensor
+  tube.setTubeType(TYPE_4, TYPE_4_DEFAULT_I2C_ADDR);
+  tube.setBrightness(15);
+  tube.setBlinkRate(BLINK_OFF);
+  tube.setPoint(true,true);  
+}
+
+void updateTube() {
+  char tube_str[5];
+
+  if (countdown <= 0)
+    sprintf(tube_str, "%4u", (unsigned int) (temperature * 100.0));
+  else
+    sprintf(tube_str, "%4u", countdown);
+
+  tube.displayString(tube_str);
+}