diff --git a/slave/slave/lib/inputOutput.c b/slave/slave/lib/inputOutput.c
--- a/slave/slave/lib/inputOutput.c
+++ b/slave/slave/lib/inputOutput.c
@@ -24,16 +24,15 @@ int8_t	moduleID;	// Slave Module ID from
 	DDRC &= ~(1 << DDC5);		// Set PC5 to input for rotary dip
 	
 	DDRA &= ~(1 << DDA7);		// Set PA7 to input for battery voltage divider
-	
 
 	//ADC register configurations for battery level detection on PA7
 	ADCSRA |= (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0);	// Set prescaler for ADC, 128 gives ADC freq of 125 KHz
 	ADMUX |= (1 << REFS0);									// Set ADC reference voltage to AVCC
-		//ADMUX |= (1 << ADLAR);								// Sets 10 bit ADC to 8 bit
+	//ADMUX |= (1 << ADLAR);								// Sets 10 bit ADC to 8 bit
 	ADMUX |= (1 << MUX2) | (1 << MUX1) | (1 << MUX0);		// Select ADC7 as the conversion channel
 	ADCSRA |= (1 << ADATE);									// Enables auto trigger, determined in ADCSRB bits ADTS
-		//ADCSRA |= (1 << ADIF);								// 
-		//ADCSRA |= (1 << ADIE);								// ADC interrupt enable set
+	//ADCSRA |= (1 << ADIF);								// 
+	//ADCSRA |= (1 << ADIE);								// ADC interrupt enable set
 	ADCSRB &= ~((1 << ADTS2) | (1 << ADTS1) | (1 << ADTS0));// Set ADC auto trigger source to free running mode
 	ADCSRA |= (1 << ADEN);									// Enable ADC
 	ADCSRA |= (1 << ADSC);									// Start ADC measurements.  ADC should now continuously run conversions, which are stored in ADCH 0x79
@@ -58,16 +57,10 @@ int8_t	moduleID;	// Slave Module ID from
 	moduleID = (moduleID & 0b0111);				//Mask bits
 	*/
 
-	/*
 	while(moduleID==0)
 	{
 		moduleID = i2c_read(EEPROM_ADDR, 0x05);
 	}
-	*/
-	
-	//moduleID = i2c_read(EEPROM_ADDR, 0x05);
-
-
  }
  
  
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
@@ -16,7 +16,7 @@ void sensors_readBoardTemp(void);	// Rea
 void sensors_readPressure(void);	// Reads pressure
 void sensors_readHumid(void);		// Reads humidity
 void sensors_readLux(void);			// Reads lux
-void sensors_readBatt(void);
+void sensors_readBatt(void);		// Reads battery voltage from ADC
 
 int16_t sensors_getSpiTemp(void);	// Gets spi temperature from variable
 int8_t sensors_getBoardTemp(void);	// Gets board temperature from variable
diff --git a/slave/slave/slave.c b/slave/slave/slave.c
--- a/slave/slave/slave.c
+++ b/slave/slave/slave.c
@@ -47,7 +47,7 @@ int main(void)
 {
 	// Writes ID to EEPROM, change for all modules and delete after programming
 	// 0 is for generic setup, 1 is for sensors, 2 is for Geiger, 3 is for cameras
-	//i2c_write(EEPROM_ADDR, 0x05, 0x01);
+	//i2c_write(EEPROM_ADDR, 0x05, 0x03);
 		
 	// Initialize		
 	micro_setup();			// Generic microcontroller config options