diff --git a/master/master/config.h b/master/master/config.h
--- a/master/master/config.h
+++ b/master/master/config.h
@@ -62,7 +62,7 @@
 #define MAX_PAYLOAD_LEN 16
 
 // Circular serial buffer size. Must be at least MAX_CMD_LEN + 5
-#define BUFFER_SIZE 32 
+#define BUFFER_SIZE 128 
 
 // Public broadcast address
 #define BROADCAST_ADDR 0 
diff --git a/master/master/lib/logger.c b/master/master/lib/logger.c
--- a/master/master/lib/logger.c
+++ b/master/master/lib/logger.c
@@ -38,11 +38,6 @@ void logger_setup()
 
 	if(!sd_raw_init())
 	{
-		// Initializing SD card failed!
-		#ifdef DEBUG_OUTPUT
-		serial0_sendString("SD> Error initializing.\r\n");
-		#endif
-		
 		led_errorcode(ERROR_SD_INIT);
 		return;
 	}
@@ -56,10 +51,6 @@ void logger_setup()
 	// Check that partition was created correctly
 	if(!partition)
 	{
-		#ifdef DEBUG_OUTPUT
-		serial0_sendString("SD> Error opening partition.\r\n");
-		#endif
-		
 		// Error opening partition. MBR might be screwed up.
 		led_errorcode(ERROR_SD_PARTITION);
 		return;
@@ -90,10 +81,10 @@ void logger_setup()
 		
 	// Create new log file
 	uint8_t logid = eeprom_read_byte(LOGGER_ID_EEPROM_ADDR);
-	char filename[48];
+	char filename[16];
 	
 	// we pre-increment logid here because it starts at 255, then wraps to 0
-	sprintf(filename, "data%d.csv",++logid);
+	snprintf(filename, 16, "data%d.csv",++logid);
 	
 	// TODO: Catch errors here
 	if(fat_create_file(dd, filename, &directory) == 0) {
diff --git a/master/master/lib/sensordata.c b/master/master/lib/sensordata.c
--- a/master/master/lib/sensordata.c
+++ b/master/master/lib/sensordata.c
@@ -13,31 +13,33 @@
 #include "../config.h"
 #include <stdio.h>
 #include <stdbool.h>
+#include <string.h>
 #include "sensordata.h"
 #include "slavesensors.h"
 #include "boardtemp.h"
 #include "looptime.h"
 #include "gps.h"
+#include "logger.h"
 
-int16_t slaves[MAX_NUM_SLAVES][MAX_NUM_SENSORS];
+int32_t slaves[MAX_NUM_SLAVES][MAX_NUM_SENSORS];
 
 void sensordata_setup() 
 {
 	for(int i=0; i<MAX_NUM_SLAVES; i++) {
 		for(int j=0; j<MAX_NUM_SENSORS; j++) {
-			slaves[i][j] = -32768; // minimum value of 16 bit integer
+			slaves[i][j] = -2111111111; // minimum value of 16 bit integer
 		}
 	}
 }
 
-void sensordata_set(uint8_t nodeID, uint8_t type, uint16_t value)
+void sensordata_set(uint8_t nodeID, uint8_t type, int32_t value)
 {
 	if(nodeID < MAX_NUM_SLAVES) {
 		slaves[nodeID][type] = value;
 	}	
 }
 
-int16_t sensordata_get(uint8_t nodeID, uint8_t type) 
+int32_t sensordata_get(uint8_t nodeID, uint8_t type) 
 {
 	// Avoid reading out of bad places!
 	if(nodeID < MAX_NUM_SLAVES) {
@@ -59,7 +61,7 @@ char* slavesensors_getAPRScomment() {
 }
 
 
-char logbuf[128];
+char logbuf[256];
 bool dataWasReady = false;
 
 void sensordata_logvalues() {
@@ -68,42 +70,43 @@ void sensordata_logvalues() {
 	
 		// Only generate/write header the first time data is ready
 		if(!dataWasReady) {
-			char csvHeader[128];
+			#define CSV_HEADER_SIZE 512
+			char csvHeader[CSV_HEADER_SIZE];
 			csvHeader[0] = 0x00;
 		
 			// Add master data headers
-			snprintf(csvHeader, 128, "Time,BoardTemp,GPSTime,GPSLat,GPSLon,GPSSpeed,GPSHDOP,GPSCourse,GPSSV");
+			snprintf(csvHeader, CSV_HEADER_SIZE, "Time,BoardTemp,GPSTime,GPSLat,GPSLon,GPSSpeed,GPSHDOP,GPSCourse,GPSSV,");
 		
 			// Add slave data headers
 			for(uint8_t i=0; i<MAX_NUM_SLAVES; i++) {
 				for(uint8_t j=0; j<MAX_NUM_SENSORS; j++) {
-					int16_t tmp = sensordata_get(i, j);
-					if(tmp != -32768) {
+					int32_t tmp = sensordata_get(i, j);
+					if(tmp != -2111111111) {
 						// FIXME: will the 128 here really provide safety? might want to subtract the strlen
-						snprintf(csvHeader + strlen(csvHeader), 128,"%s-%s,", slavesensors_slavename(i), slavesensors_getLabel(j));
+						snprintf(csvHeader + strlen(csvHeader), CSV_HEADER_SIZE-strlen(csvHeader),"%s-%s,", slavesensors_slavename(i), slavesensors_getLabel(j));
 					}
 				}
 			}
 		
 			// Terminate header string and write to SD card
-			snprintf(csvHeader + strlen(csvHeader), 128,"\r\n");
+			snprintf(csvHeader + strlen(csvHeader), CSV_HEADER_SIZE-strlen(csvHeader),"\r\n");
 			logger_log(csvHeader);
 			dataWasReady = true;
 		}
 	
 		// Write CSV sensor values to SD card
 		logbuf[0] = 0x00;
-		snprintf(logbuf, 128, "%lu,%d,%u,%s,%s,%s,%s,%s,%s,", time_millis(), sensors_getBoardTemp(),get_timestamp(),get_latitude(),get_longitude(),get_speedKnots(),get_hdop(), get_course(), get_sv());
+		snprintf(logbuf, 256, "%lu,%d,%s,%s,%s,%s,%s,%s,%s,", time_millis(), sensors_getBoardTemp(),get_timestamp(),get_latitude(),get_longitude(),get_speedKnots(),get_hdop(), get_course(), get_sv());
 		for(int i=0; i<MAX_NUM_SLAVES; i++) {
 			for(int j=0; j<MAX_NUM_SENSORS; j++) {
-				int16_t tmp = sensordata_get(i, j);
-				if(tmp != -32768) {
-					snprintf(logbuf + strlen(logbuf),128," %d,", tmp);
+				int32_t tmp = sensordata_get(i, j);
+				if(tmp != -2111111111) {
+					snprintf(logbuf + strlen(logbuf),256-strlen(logbuf)," %ld,", tmp);
 				}
 			
 			}
 		}
-		snprintf(logbuf + strlen(logbuf),128,"\r\n");
+		snprintf(logbuf + strlen(logbuf),256-strlen(logbuf),"\r\n");
 		logger_log(logbuf);
 	}
 }
\ No newline at end of file
diff --git a/master/master/lib/sensordata.h b/master/master/lib/sensordata.h
--- a/master/master/lib/sensordata.h
+++ b/master/master/lib/sensordata.h
@@ -17,10 +17,8 @@
 #include "slavesensors.h"
 
 void sensordata_setup();
-void sensordata_set(uint8_t nodeID, uint8_t type, uint16_t value);
-int16_t sensordata_get(uint8_t nodeID, uint8_t type);
-void sensordata_setBoardTemp(uint8_t slaveID, int16_t value);
-int16_t sensordata_getBoardTemp(uint8_t slaveID);
+void sensordata_set(uint8_t nodeID, uint8_t type, int32_t value);
+int32_t sensordata_get(uint8_t nodeID, uint8_t type);
 char* slavesensors_getAPRScomment();
 void sensordata_logvalues();
 
diff --git a/master/master/lib/serparser.c b/master/master/lib/serparser.c
--- a/master/master/lib/serparser.c
+++ b/master/master/lib/serparser.c
@@ -48,7 +48,7 @@ uint8_t getPayloadLength()
 {
 	return payloadLength;
 }
-uint8_t* getPayload() 
+char* getPayload() 
 {
 	return receivedPayload;
 }
diff --git a/master/master/lib/serparser.h b/master/master/lib/serparser.h
--- a/master/master/lib/serparser.h
+++ b/master/master/lib/serparser.h
@@ -34,7 +34,7 @@ enum parseStates
 
 // Accessors
 uint8_t getPayloadLength();
-uint8_t* getPayload();
+char* getPayload();
 uint8_t getPayloadType();
 
 // Prototypes
diff --git a/master/master/lib/slavesensors.c b/master/master/lib/slavesensors.c
--- a/master/master/lib/slavesensors.c
+++ b/master/master/lib/slavesensors.c
@@ -52,8 +52,17 @@ const char *const labelLookup[] PROGMEM 
 
 char labelBuffer[25]; // Size to length of label
 char* slavesensors_getLabel(uint8_t sensorID) {
-	strncpy_P(labelBuffer,(char*)pgm_read_word(&(labelLookup[sensorID])),25);
-	return labelBuffer;
+	//snprintf(labelBuffer, 25, "[%u]", sensorID);
+	//return labelBuffer;
+	if(sensorID < 9)
+	{
+		strncpy_P(labelBuffer,(char*)pgm_read_word(&(labelLookup[sensorID])),25);
+		
+		return labelBuffer;
+	}
+	else {
+		return NULL;
+	}
 }
 
 uint8_t currentSlave = 0;
@@ -67,7 +76,7 @@ void slavesensors_setup()
 }
 
 //#define DEBUG_NETWORKSCAN
-#define DEBUG_GETSLAVEDATA
+//#define DEBUG_GETSLAVEDATA
 
 char* bufPtr = 0x00;
 
@@ -397,9 +406,9 @@ void slavesensors_process(uint8_t parseR
 		// We got some data, let's handle it
 		// ASCII payload
 		uint8_t len = getPayloadLength();
-		uint8_t* load = getPayload();
+		char* load = getPayload();
 		uint8_t type = getPayloadType();
-		uint16_t parsedVal = atoi(load);
+		int32_t parsedVal = strtol(load, NULL, 10);//atoi(load);
 
 		// Special case for slave telling us how many things we're about to get		
 		if(type + 0x30 == '@') {
diff --git a/master/master/master.c b/master/master/master.c
--- a/master/master/master.c
+++ b/master/master/master.c
@@ -51,12 +51,6 @@ int main(void)
 	logger_setup();
 	afsk_setup();
 	
-	#ifdef DEBUG_OUTPUT
-		serial0_sendString("\r\n---------------------------------\r\n");
-		serial0_sendString("HAB Controller 1.0 - Initialized!\r\n");
-		serial0_sendString("---------------------------------\r\n");
-	#endif
-	
 	serial0_sendString("\r\nHello.\r\n\r\n");
 	
 	// Blocking ZigBee node discovery