[Examples] Avoid spurious wakeup

facchinm · facchinm · commit 5456a1f69885 · 2017-07-13T16:56:25.000+02:00
diff --git a/examples/ExternalWakeup/ExternalWakeup.ino b/examples/ExternalWakeup/ExternalWakeup.ino
@@ -21,6 +21,8 @@ const int pin = 8;
 
 void setup() {
   pinMode(LED_BUILTIN, OUTPUT);
+  // Set pin 8 as INPUT_PULLUP to avoid spurious wakeup
+  pinMode(pin, INPUT_PULLUP);
   // Attach a wakeup interrupt on pin 8, calling repetitionsIncrease when the device is woken up
   LowPower.attachInterruptWakeup(pin, repetitionsIncrease, CHANGE);
 }

Original file line number	Diff line number	Diff line change
`@@ -21,6 +21,8 @@ const int pin = 8;`
`21`	`21`
`22`	`22`	`void setup() {`
`23`	`23`	`pinMode(LED_BUILTIN, OUTPUT);`
	`24`	`+ // Set pin 8 as INPUT_PULLUP to avoid spurious wakeup`
	`25`	`+ pinMode(pin, INPUT_PULLUP);`
`24`	`26`	`// Attach a wakeup interrupt on pin 8, calling repetitionsIncrease when the device is woken up`
`25`	`27`	`LowPower.attachInterruptWakeup(pin, repetitionsIncrease, CHANGE);`
`26`	`28`	`}`