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fix(ExternalWakeup): customization may be needed depending on button implementation #78

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Aug 23, 2022
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fix(ExternalWakeup): customization may be needed depending on button implementation #78

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4 changes: 4 additions & 0 deletions examples/ExternalWakeup/ExternalWakeup.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,9 @@
battery life significantly.

In this sketch, pressing a pushbutton attached to pin will wake up the board.
Warning: depending on boards, and its button hardware implementation,
it may be required to adapt INPUT_PULLUP/INPUT_PULLDOWN parameter
in pinMode(pin, XXX)

This example code is in the public domain.
*/
Expand All @@ -28,6 +31,7 @@ const int pin = USER_BTN;
void setup() {
pinMode(LED_BUILTIN, OUTPUT);
// Set pin as INPUT_PULLUP to avoid spurious wakeup
// Warning depending on boards, INPUT_PULLDOWN may be required instead
pinMode(pin, INPUT_PULLUP);

// Configure low power
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