From: vl_garistov <vl.garistov@gmail.com>
Date: Sat, 24 Oct 2020 21:58:52 +0000 (+0000)
Subject: added an example for external interrupt
X-Git-Url: https://kolegite.com/gitweb/?a=commitdiff_plain;h=3a85f8980d06c93f854f71a3291acb473b94460d;p=vmks.git

added an example for external interrupt
---

diff --git a/LED_strip_2/LED_strip_2.ino b/LED_strip_2/LED_strip_2.ino
new file mode 100644
index 0000000..77ba930
--- /dev/null
+++ b/LED_strip_2/LED_strip_2.ino
@@ -0,0 +1,45 @@
+#define BTN_PIN	2
+#define LED_PIN	13
+
+void button_pressed_ISR(void);
+void slow_computation(void);
+
+volatile uint8_t led_state = 0;
+
+void setup()
+{
+  	pinMode(BTN_PIN, INPUT_PULLUP);
+  	pinMode(LED_PIN, OUTPUT);
+	attachInterrupt(digitalPinToInterrupt(BTN_PIN), button_pressed_ISR, FALLING);
+  
+  	Serial.begin(9600);
+}
+
+void loop()
+{
+  	slow_computation();
+  	
+  	if (led_state)
+      	Serial.println("LED in on.");
+  	else
+      	Serial.println("LED in off.");
+}
+
+void button_pressed_ISR(void)
+{
+  	if (led_state)
+  	{
+      	led_state = 0;
+      	digitalWrite(LED_PIN, LOW);
+  	}
+  	else
+    {
+      	led_state = 1;
+      	digitalWrite(LED_PIN, HIGH);
+    }
+}
+
+void slow_computation(void)
+{
+  	delay(5000);
+}
\ No newline at end of file
diff --git a/LED_strip_2/LED_strip_2.png b/LED_strip_2/LED_strip_2.png
new file mode 100644
index 0000000..2d29e5c
Binary files /dev/null and b/LED_strip_2/LED_strip_2.png differ