diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp
index a398fcf..bc6a0fb 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp
@@ -84,6 +84,7 @@ update the voltMeterConstant variable in pP_config.h with the correct value
 
 ------------------------------------------------------------*/
 
+#define PP_VERSION 2.2.1_882a87
 /*  Debug output verbose mode will continuously output sensor readings
     rather than waiting for user input */
 #define VERBOSE true
diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_serial.h b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_serial.h
index 61e1252..63af5e5 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_serial.h
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_serial.h
@@ -188,6 +188,9 @@ void serialPrintConfig() {
 
   Serial.print("VM_CONST ");
   Serial.println(voltMeterConstant);
+  
+  Serial.print("Firmware Version ");
+  Serial.println(PP_VERSION);
 }
 
 void serialPrintState() {
@@ -207,9 +210,15 @@ void serialPrintState() {
 
   Serial.print("\"Err\":");
   Serial.print(ERR_STATE);
+  Serial.print(",");
 
   Serial.print("\"PzCon\":");
   Serial.print(PZ_STATE);
+  Serial.print(",");
+
+  Serial.print("\"Firm_Ver\":");
+  Serial.print(PP_VERSION);
+  Serial.print(",");
 
   Serial.println("}");
 }
diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_volatile.h b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_volatile.h
index 0f13050..a3f5e07 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_volatile.h
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_volatile.h
@@ -27,7 +27,6 @@ int VFol = 0;
 int BlinkState = 0;
 int BlinkCount = (InitCount * 2) + 1;   // Multiply Blink count by 2 to handle toggle state, add one extra to make sure light is on after
 
-
 // Serial Input Parsing Variables
 #define buffSize 40
 char inputBuffer[buffSize];