diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.cpp b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.cpp
index 798bafd..ff8b56b 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.cpp
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.cpp
@@ -10,7 +10,7 @@ void pP_i2c::i2cInput(int bytesReceived) {
       cmdRcvd[a] = Wire.receive();
     }
     else {
-      Wire.receive();
+      longRcvd[a] = Wire.receive();
     }
   }
   if (bytesReceived == 1 && (cmdRcvd[0] < regMapSize)) {
@@ -46,7 +46,7 @@ void pP_i2c::i2cInput(int bytesReceived) {
       return;
       break;
     case 0x06:
-      voltMeterConstant = (uint8_t) cmdRcvd[1];
+      voltMeterConstant = longRcvd[0]*65536+longRcvd[1]*256+longRcvd[2];
       return;
       break;
     default:
diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.h b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.h
index 07e3faa..20c5611 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.h
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.h
@@ -16,10 +16,12 @@
 
 /*-------------------------Variables------------------------*/
 #define regMapSize  7
-#define maxBytes  3
+#define maxBytes  2
+#define longBytes 4
 byte regMap[regMapSize];
 byte regMapTemp[regMapSize];
 byte cmdRcvd[maxBytes];
+byte longRcvd[longBytes];
 
 /*------------------------------------------------*/