From 065594d8b1344ed8110f7e7e1ff4b7281e8eb291 Mon Sep 17 00:00:00 2001
From: Sadeep Madurange <sadeep@asciimx.com>
Date: Tue, 15 Apr 2025 18:43:49 +0800
Subject: Backend btns and debounce logic.

---
 lock/util.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'lock/util.c')

diff --git a/lock/util.c b/lock/util.c
index 32a1fcf..683faa2 100644
--- a/lock/util.c
+++ b/lock/util.c
@@ -1,9 +1,18 @@
 #include <avr/io.h>
 #include <avr/interrupt.h>
-#include <avr/wdt.h>
+#include <util/delay.h>
 
 #include "util.h"
 
+int is_btn_pressed(uint8_t pin, uint8_t btn)
+{
+	if (!((pin >> btn) & 0x01)) {
+		_delay_us(2000);
+		return !((pin >> btn) & 0x01);
+	}
+	return 0;
+}
+
 void xor(const char *k, const char *s, char *d, uint8_t n)
 {
 	int i;
-- 
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