diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index 7fcbce2..d76c871 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -43,7 +43,8 @@ typedef struct __attribute__((packed)) cardData {
 #define DELAY_TIME 10
 #define COMM_LOCK_IDLE_TIME 50
 #define COMM_CARD_IDLE_TIME 1000
-#define LED_DELAYED_IDLE_TIME 50
+#define LED_ARMED_BLINK_TIME 50
+#define LED_ERROR_BLINK_TIME 50
 
 #define EEPROM_SIZE 4095
 
@@ -59,8 +60,7 @@ enum LEDStates
 	LED_OFF,
 	LED_ARMED,
 	LED_ON,
-	LED_DELAYED,
-	LED_DELAYED_IDLE,
+	LED_ERROR,
 } LEDState = LED_OFF;
 
 enum lockStates
@@ -199,7 +199,7 @@ void checkCard()
 			}
 		} else {
 			if (LOGGING) Serial.println("[INFO] Card not authorized on machine.");
-			LEDState = LED_DELAYED;
+			LEDState = LED_ERROR;
 		}
 	}
 }
@@ -249,7 +249,7 @@ void processLockState()
 {
 	switch (lockState) {
 		case LOCK_OFF:
-			if (LEDState < LED_DELAYED) LEDState = LED_OFF;
+			if (LEDState != LED_ERROR) LEDState = LED_OFF;
 
 			relayOff();
 			break;
@@ -259,11 +259,11 @@ void processLockState()
 				lockState = LOCK_ARMED;
 			} else {
 				lockState = LOCK_OFF;
-				LEDState = LED_DELAYED;
+				LEDState = LED_ERROR;
 			}
 			break;
 		case LOCK_ARMED:
-			if (LEDState < LED_DELAYED) LEDState = LED_ARMED;
+			if (LEDState != LED_ERROR) LEDState = LED_ARMED;
 
 			relayOff();
 
@@ -285,7 +285,7 @@ void processLockState()
 			}
 			break;
 		case LOCK_ON:
-			if (LEDState < LED_DELAYED) LEDState = LED_ON;
+			if (LEDState != LED_ERROR) LEDState = LED_ON;
 
 			relayOn();
 
@@ -308,44 +308,50 @@ void redLEDOff() { digitalWrite(RED_LED_PIN, LED_PIN_OFF); }
 
 void processLEDState()
 {
-	static uint16_t LEDDelayedIdleCount = 0;
+	static uint16_t LEDArmedBlinkCount, LEDErrorBlinkCount;
+
+	if (LEDState != LED_ARMED) LEDArmedBlinkCount = 0;
+	if (LEDState != LED_ERROR) LEDErrorBlinkCount = 0;
 
 	switch (LEDState) {
 		case LED_OFF:
 			greenLEDOff();
-			redLEDOff();
+			redLEDOn();
 
 			break;
 		case LED_ARMED:
-			greenLEDOn();
-			redLEDOff();
+			LEDArmedBlinkCount++;
 
+			if (LEDArmedBlinkCount < LED_ARMED_BLINK_TIME) {
+				greenLEDOn();
+				redLEDOn();
+			} else if (LEDArmedBlinkCount < LED_ARMED_BLINK_TIME * 2) {
+				greenLEDOff();
+				redLEDOn();
+			} else {
+				LEDArmedBlinkCount = 0;
+			}
 			break;
 		case LED_ON:
-			greenLEDOff();
+			greenLEDOn();
 			redLEDOn();
 
 			break;
-		case LED_DELAYED:
-			LEDDelayedIdleCount = 0;
-
-			LEDState = LED_DELAYED_IDLE;
-			break;
-		case LED_DELAYED_IDLE:
-			LEDDelayedIdleCount++;
+		case LED_ERROR:
+			LEDErrorBlinkCount++;
 
-			if (LEDDelayedIdleCount < LED_DELAYED_IDLE_TIME) {
-				greenLEDOff();
-				redLEDOn();
-			} else if (LEDDelayedIdleCount < LED_DELAYED_IDLE_TIME * 2) {
+			if (LEDErrorBlinkCount < LED_ERROR_BLINK_TIME) {
 				greenLEDOff();
 				redLEDOff();
+			} else if (LEDErrorBlinkCount < LED_ERROR_BLINK_TIME * 2) {
+				greenLEDOff();
+				redLEDOn();
 			} else {
 				LEDState = LED_OFF;
 			}
 			break;
 		default:
-			if (LOGGING) Serial.println("[ERROR] Invalid lock state.");
+			if (LOGGING) Serial.println("[ERROR] Invalid LED state.");
 			LEDState = LED_OFF;
 			break;
 	}
@@ -463,8 +469,7 @@ void getCards()
 
 void processCommState()
 {
-	static uint16_t commLockIdleCount = 0;
-	static uint16_t commCardIdleCount = 0;
+	static uint16_t commLockIdleCount, commCardIdleCount;
 
 	switch (commState) {
 		case COMM_INIT:
@@ -490,8 +495,6 @@ void processCommState()
 				commLockIdleCount = 0;
 
 				commState = COMM_IDLE;
-
-				Serial.printf("******free heap size: %u\n", ESP.getFreeHeap());
 			}
 			break;
 		case COMM_CARD: