diff --git a/slave/slave/lib/sensors.c b/slave/slave/lib/sensors.c
--- a/slave/slave/lib/sensors.c
+++ b/slave/slave/lib/sensors.c
@@ -22,7 +22,11 @@ int8_t	boardTemp;	// Board Temperature (
 int32_t ut;			// Temperature from BMP085 (from i2c)
 int32_t up;			// Pressure from BMP085 (from i2c)
 uint16_t humid;		// Humidity (from i2c)
-uint8_t light;		// Lux reading (from i2c)
+uint8_t lightH;		// Higher byte from light sensor (from i2c)
+uint8_t lightL;		// Lower byte from light sensor
+uint8_t exponent;	// Exponent for Lux
+uint8_t mantissa;	// Mantissa for Lux
+uint32_t lux;		// Calculated Lux value
 int8_t batt;		// Read battery voltage from ADC
 
 int16_t ac1;		// The following 11 variables are the calibration values for the BMP085
@@ -194,14 +198,23 @@ void sensors_readHumid()
 	humid = (humid / 16383) * 100;
 }
 
-void sensors_readLight()
+void sensors_readLux()
 {
 	// FOR FIRST BYTE:
-	light = i2c_read(LIGHT_ADDR, 0x03);
-	// exponent = 8xE3 + 4xE2 + 2xE1 + E0
-	// mantissa = 8xM7 + 4xM6 + 2xM5 + M4
-	// light = 2^(exponent)*mantissa*0.72
-
+	lightH = i2c_read(LIGHT_ADDR, 0x03);
+	lightL = i2c_read(LIGHT_ADDR, 0x04);
+	
+	exponent = lightH;
+	exponent = exponent >> 4;
+	
+	lightH = lightH << 4;
+	mantissa = lightH | lightL;
+	//mantissa = mantissa << 4;
+	//mantissa = mantissa >> 4;
+	
+	//lux = (pow(2, exponent) * (float)(mantissa * 0.045));
+	lux = (float)(pow(2,exponent) * mantissa) * 0.045;
+	
 	// FOR BOTH BYTES:
 	// light = light << 4;
 	// light = light | (0x0F & i2c_read(LIGHT_ADDR, 0x04));  //  This can be used to read in the 4 LSBs from the second register
@@ -235,9 +248,9 @@ uint16_t sensors_getHumid(void)			// Get
 	return humid;
 }
 
-uint8_t sensors_getLight(void)		// Gets light from variable
+uint32_t sensors_getLux(void)		// Gets light from variable
 {
-	return light;
+	return lux;
 }
 
 //possibly uint8_t
diff --git a/slave/slave/lib/sensors.h b/slave/slave/lib/sensors.h
--- a/slave/slave/lib/sensors.h
+++ b/slave/slave/lib/sensors.h
@@ -15,14 +15,14 @@ void sensors_readSpiTemp(void);		// Read
 void sensors_readBoardTemp(void);	// Reads board temperature
 void sensors_readPressure(void);	// Reads pressure
 void sensors_readHumid(void);		// Reads humidity
-void sensors_readLight(void);		// Reads lux
+void sensors_readLux(void);		// Reads lux
 void sensors_readBatt(void);
 
 int16_t sensors_getSpiTemp(void);	// Gets spi temperature from variable
 int8_t sensors_getBoardTemp(void);	// Gets board temperature from variable
 int32_t sensors_getPressure(void);	// Gets pressure from variable
 uint16_t sensors_getHumid(void);	// Gets humidity from variable
-uint8_t sensors_getLight(void);		// Gets lux from variable
+uint32_t sensors_getLux(void);		// Gets lux from variable
 int8_t sensors_getBatt(void);		// Gets battery voltage from variable
 uint32_t sensors_getAltitude(void);		// Gets altitude from variable
 
diff --git a/slave/slave/modules.c b/slave/slave/modules.c
--- a/slave/slave/modules.c
+++ b/slave/slave/modules.c
@@ -125,7 +125,7 @@
 	sensors_readSpiTemp();			//Data Read
 	sensors_readPressure();			//Data Read
 	//sensors_readHumid();				//Data Read
-	sensors_readLight();				//Data Read
+	sensors_readLux();				//Data Read
 	sensors_readBatt();
 	 
  }
diff --git a/slave/slave/slave.c b/slave/slave/slave.c
--- a/slave/slave/slave.c
+++ b/slave/slave/slave.c
@@ -82,8 +82,8 @@ int main(void)
 			
 			io_regulateTemp();			// Gets board temperature and enables heater if below threshold
 
-			//snprintf(buff,128,"|ModuleID: %u |BoardTemp: %i |Millis: %lu |Light: %u |Pressure: %lu |Altitude: %lu \r\n",io_getModuleId(),sensors_getBoardTemp(),time_millis(),sensors_getLight(),sensors_getPressure(),sensors_getAltitude()); //DEBUG
-			//serial0_sendString(buff); //DEBUG
+			snprintf(buff,128,"|ModuleID: %u |BoardTemp: %i |Millis: %lu |Lux: %lu |Pressure: %lu |Altitude: %lu \r\n",io_getModuleId(),sensors_getBoardTemp(),time_millis(),sensors_getLux(),sensors_getPressure(),sensors_getAltitude()); //DEBUG
+			serial0_sendString(buff); //DEBUG
 
 			_delay_ms(2);		// Delay to prevent the sensor loop from running again before time_millis changes
 			led_off(0);