Added the setup of the DDR for the relay.

src/main.c

@@ -45,6 +45,10 @@ void setup_relays(Relay *arr) {
   arr[0].input_port = &PORTA.IN;
   arr[0].input_pin = RELAY0_INPIN;
 
+  // Set the directions for the input and output pins/ports
+  PORTA.DDR |= RELAY0_ENPIN;
+  PORTA.DDR &= ~RELAY1_ENPIN;
+
   for (int i = 0; i < N_RELAYS; i++) {
     Relay_MeasureMakeTime(&arr[0]);
     Relay_MeasureBreakTime(&arr[0]);