Changeset - c7c9ce2b01e3
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mkroening@CL-ENS241-07.cedarville.edu - 12 years ago 2013-02-14 16:31:59
mkroening@CL-ENS241-07.cedarville.edu
Lux edit
4 files changed with 26 insertions and 13 deletions:
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slave/slave/lib/sensors.c
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@@ -19,13 +19,17 @@
 
int16_t	spiTemp;	// Thermocouple Temperature (from spi)
 
int8_t	boardTemp;	// Board Temperature (from i2c)
 
//Should these two be int16_t?  CHANGED TO INT32 BASED ON DATASHEET
 
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
 
int16_t ac2;
 
int16_t ac3;
 
uint16_t ac4;
 
@@ -191,19 +195,28 @@ void sensors_readHumid()
 
	humid = i2c_read16(HUMID_ADDR);
 
	
 
	//calculations to relative humidity: humid = (humid/((2^14) - 1))*100%       >> is divide by power, << is multiply by power, 2^14-1 = 16383
 
	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
 
	// exponent = 8xE3 + 4xE2 + 2xE1 + E0
 
	// mantissa = 128xM7 + 64xM6 + 32xM5 + 16xM4 + 8xM3 + 4xM2 + 2xM1 + M0
 
@@ -232,15 +245,15 @@ int32_t sensors_getPressure(void)	// Get
 
 
uint16_t sensors_getHumid(void)			// Gets relative humidity from variable
 
{
 
	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
 
int8_t sensors_getBatt(void)		// Gets battery voltage from variable
 
{
 
	return batt;
slave/slave/lib/sensors.h
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@@ -12,18 +12,18 @@
 
 
void sensors_setupPressure(void);	// Reads pressure calibration values
 
void sensors_readSpiTemp(void);		// Reads spi temperature
 
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
 
 
#endif /* SENSORS_H_ */
 
\ No newline at end of file
slave/slave/modules.c
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@@ -122,13 +122,13 @@
 
 {
 
	// Gathers data and performs functions for sensor daughter board
 
	sensors_readBoardTemp();		//Data Read
 
	sensors_readSpiTemp();			//Data Read
 
	sensors_readPressure();			//Data Read
 
	//sensors_readHumid();				//Data Read
 
	sensors_readLight();				//Data Read
 
	sensors_readLux();				//Data Read
 
	sensors_readBatt();
 
	 
 
 }
 
  
 
 void modules_geiger()
 
 {
slave/slave/slave.c
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@@ -79,14 +79,14 @@ int main(void)
 
			led_on(0);
 
			sensors_readBoardTemp();	// Read board temperature sensor (Common on all slaves) (Data Read)
 
			modules_run(io_getModuleId());		// Runs specific module functions (like data reading)
 
			
 
			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);
 
			led_off(2);
 
		}
 

	
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