From cd5f6721dccb4008e240e24ff410399ae9b3d1db Mon Sep 17 00:00:00 2001
From: Oleg Kalachev <okalachev@gmail.com>
Date: Mon, 4 Nov 2024 16:28:43 +0300
Subject: [PATCH] Updates to LED control code Don't call digitaWrite on each
 setLED call

---
 flix/led.ino | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/flix/led.ino b/flix/led.ino
index f06a926..65b04a5 100644
--- a/flix/led.ino
+++ b/flix/led.ino
@@ -1,7 +1,7 @@
 // Copyright (c) 2023 Oleg Kalachev <okalachev@gmail.com>
 // Repository: https://github.com/okalachev/flix
 
-// Main LED control
+// Board's LED control
 
 #define BLINK_PERIOD 500000
 
@@ -14,7 +14,12 @@ void setupLED() {
 }
 
 void setLED(bool on) {
+	static bool state = false;
+	if (on == state) {
+		return; // don't call digitalWrite if the state is the same
+	}
 	digitalWrite(LED_BUILTIN, on ? HIGH : LOW);
+	state = on;
 }
 
 void blinkLED() {