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Initial structure for HalMultiSensor

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Former-commit-id: 22bc809d9e6de8a2994f1df699ae74bb7245378f
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Ziver Koc 2016-02-01 17:52:17 +01:00
parent 70b1608dd8
commit a6f8cf872a
14 changed files with 612 additions and 0 deletions
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93
arduino/HalMultiSensor/HardwareBH1750.cpp Executable file
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/*
This is a library for the BH1750FVI Digital Light Sensor
breakout board.
The board uses I2C for communication. 2 pins are required to
interface to the device.
based on Christopher Laws, March, 2013 code.
*/
#include "HardwareBH1750.h"
#include <util/delay.h>
BH1750::BH1750() {}
void BH1750::begin(uint8_t mode) {
Wire.begin();
//write8(mode);
configure(mode);
}
void BH1750::configure(uint8_t mode) {
switch (mode) {
case BH1750_CONTINUOUS_HIGH_RES_MODE:
case BH1750_CONTINUOUS_HIGH_RES_MODE_2:
case BH1750_CONTINUOUS_LOW_RES_MODE:
case BH1750_ONE_TIME_HIGH_RES_MODE:
case BH1750_ONE_TIME_HIGH_RES_MODE_2:
case BH1750_ONE_TIME_LOW_RES_MODE:
// apply a valid mode change
write8(mode);
_delay_ms(10);
break;
default:
// Invalid measurement mode
#if BH1750_DEBUG == 1
Serial.println("Invalid measurement mode");
#endif
break;
}
}
uint16_t BH1750::readLightLevel(void) {
uint16_t level;
Wire.beginTransmission(BH1750_I2CADDR);
Wire.requestFrom(BH1750_I2CADDR, 2);
#if (ARDUINO >= 100)
level = Wire.read();
level <<= 8;
level |= Wire.read();
#else
level = Wire.receive();
level <<= 8;
level |= Wire.receive();
#endif
Wire.endTransmission();
#if BH1750_DEBUG == 1
Serial.print("Raw light level: ");
Serial.println(level);
#endif
level = level/1.2; // convert to lux
#if BH1750_DEBUG == 1
Serial.print("Light level: ");
Serial.println(level);
#endif
return level;
}
/*********************************************************************/
void BH1750::write8(uint8_t d) {
Wire.beginTransmission(BH1750_I2CADDR);
#if (ARDUINO >= 100)
Wire.write(d);
#else
Wire.send(d);
#endif
Wire.endTransmission();
}