Flush serial in DeepSleep example to allow print before sleep (espressif#1791)

lbernstone · me-no-dev · commit f9f995b283e3 · 2018-09-17T21:31:24.000+02:00
* Add delay into example to allow print before sleep

* Changed to Serial.flush()
diff --git a/libraries/ESP32/examples/DeepSleep/TimerWakeUp/TimerWakeUp.ino b/libraries/ESP32/examples/DeepSleep/TimerWakeUp/TimerWakeUp.ino
@@ -40,7 +40,7 @@ void print_wakeup_reason(){
     case 3  : Serial.println("Wakeup caused by timer"); break;
     case 4  : Serial.println("Wakeup caused by touchpad"); break;
     case 5  : Serial.println("Wakeup caused by ULP program"); break;
-    default : Serial.println("Wakeup was not caused by deep sleep"); break;
+    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
   }
 }
 
@@ -84,6 +84,7 @@ void setup(){
   reset occurs.
   */
   Serial.println("Going to sleep now");
+  Serial.flush(); 
   esp_deep_sleep_start();
   Serial.println("This will never be printed");
 }

Original file line number	Diff line number	Diff line change
`@@ -40,7 +40,7 @@ void print_wakeup_reason(){`
`40`	`40`	`case 3 : Serial.println("Wakeup caused by timer"); break;`
`41`	`41`	`case 4 : Serial.println("Wakeup caused by touchpad"); break;`
`42`	`42`	`case 5 : Serial.println("Wakeup caused by ULP program"); break;`
`43`		`- default : Serial.println("Wakeup was not caused by deep sleep"); break;`
	`43`	`+ default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;`
`44`	`44`	`}`
`45`	`45`	`}`
`46`	`46`
`@@ -84,6 +84,7 @@ void setup(){`
`84`	`84`	`reset occurs.`
`85`	`85`	`*/`
`86`	`86`	`Serial.println("Going to sleep now");`
	`87`	`+ Serial.flush();`
`87`	`88`	`esp_deep_sleep_start();`
`88`	`89`	`Serial.println("This will never be printed");`
`89`	`90`	`}`