#define LIMIT_CLOSED_PIN 19 // A5: limit switch for close
#define AJAR_PIN 14 // input pin for reed relais (door ajar/shut)
-#define SHUT 0
-#define AJAR 1
+#define SHUT 10
+#define AJAR 5
byte ajar_last_state = SHUT;
+#define AJAR_LOW_PASS_TAU 200
+byte ajar_low_pass_counter = 0;
+byte ajar_low_pass_last_value = ajar_last_state;
#define MANUAL_OPEN_PIN 12 // keys for manual open and close
#define MANUAL_CLOSE_PIN 13 //
byte get_ajar_status()
{
- if(digitalRead(AJAR_PIN) == LOW)
- return SHUT;
-
- return AJAR;
+ byte b = (digitalRead(AJAR_PIN) == LOW) ? SHUT : AJAR;
+ ajar_low_pass_counter = (b == ajar_low_pass_last_value) ? ajar_low_pass_counter+1 : 0;
+ ajar_low_pass_last_value = b;
+ if(ajar_low_pass_counter >= AJAR_LOW_PASS_TAU) {
+ ajar_low_pass_counter = 0;
+ return b;
+ }
+ else
+ return ajar_last_state;
}
void init_ajar()
start_step_timer();
}
-void print_status()
+void print_status(byte as)
{
Serial.print("Status: ");
if(is_opened())
case WAIT: Serial.print(", waiting"); break;
default: Serial.print(", <undefined state>"); break;
}
- if(get_ajar_status() == SHUT)
+ if(as == SHUT)
Serial.println(", shut");
else
Serial.println(", ajar");
Serial.println("Error: Operation in progress");
}
else if (command == CMD_STATUS)
- print_status();
+ print_status(get_ajar_status());
else
Serial.println("Error: unknown command");
}
}
}
byte a = get_ajar_status();
- if(a != ajar_last_state)
- {
- print_status();
+ if(a != ajar_last_state) {
+ print_status(a);
ajar_last_state = a;
}
}