From cef7bb0def119a97444d087123e5948b882eda57 Mon Sep 17 00:00:00 2001
From: Rihards Skuja <rssk@protonmail.com>
Date: Fri, 24 Nov 2017 22:58:52 +0200
Subject: [PATCH] Introduce macros for setting pin to low or high

---
 include/main.h | 3 +++
 src/main.c     | 8 ++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/include/main.h b/include/main.h
index ecff1db..12e11f4 100644
--- a/include/main.h
+++ b/include/main.h
@@ -1,6 +1,9 @@
 #ifndef MAIN_H
 #define MAIN_H
 
+#define SET_HIGH(PORT, PIN) (PORT) |= (1 << (PIN))
+#define SET_LOW(PORT, PIN) (PORT) &= ~(1 << (PIN))
+
 void initIO(void);
 void blinkLed(void);
 void readTemp(void);
diff --git a/src/main.c b/src/main.c
index 307fe21..2ba7f6a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,7 +12,7 @@
 void initIO()
 {
     /* Servos */
-    DDRB |= (1 << SERVO_L);
+    SET_HIGH(DDRB, SERVO_L);
     /* Phase Correct PWM, 9-bit; Inverting mode */
     TCCR1A |= 1 << WGM11 | 1 << COM1A1 | 1 << COM1A0;
     /*  "Clear Timer on Compare match" mode; Prescaler = 1 */
@@ -20,7 +20,7 @@ void initIO()
     ICR1 = 19999; // F_CPU / 50Hz - 1
 
     /* LED */
-    DDRD |= (1 << LED_1);
+    SET_HIGH(DDRD, LED_1);
 }
 
 void readTemp()
@@ -31,9 +31,9 @@ void readTemp()
     for (;;) {
         d = ds18b20_gettemp();
         if (d >= 21)
-            PORTD |= (1 << LED_1);
+            SET_HIGH(PORTD, LED_1);
         else
-            PORTD &= ~(1 << LED_1);
+            SET_LOW(PORTD, LED_1);
 
         _delay_ms(500);
     }