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-rw-r--r--door_lock/main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/door_lock/main.c b/door_lock/main.c
index 36c4a37..f3f8b8c 100644
--- a/door_lock/main.c
+++ b/door_lock/main.c
@@ -39,9 +39,9 @@ int main(void)
ISR (INT0_vect)
{
- if ((PIND & (1 << LOCK_BTN)))
+ if (!((PIND >> LOCK_BTN) & 0x01))
OCR1A = PWM_MID;
- if ((PIND & (1 << UNLOCK_BTN)))
+ if (!((PIND >> UNLOCK_BTN) & 0x01))
OCR1A = PWM_MIN;
}