/Modules/Sensors/ISL2902001A/SW/Arduino/i2c_light/i2c_light.ino
20,7 → 20,6
// I2C pins PC4 - , PC5 -
//
pinMode(3, OUTPUT); // LED pro blikani, aby bylo videt, ze to neco dela
pinMode(5, OUTPUT); // LED pro blikani, aby bylo videt, ze to neco dela
Serial.begin(9600); // Zmerena intenzita osvetleni se bude vypisovat na seriovou linku
}
 
29,9 → 28,9
 
void led_blink()
{
digitalWrite(3, HIGH); // set the LED on
digitalWrite(3, HIGH); // set the LED off
delay(500);
digitalWrite(3, LOW); // set the LED off
digitalWrite(3, LOW); // set the LED on
delay(500);
}
 
44,13 → 43,13
{
case SENSE_VIS:
{
command=0b11000000; // setup (eye light sensing; one time measurement; measurement range 1)
command=0b11000001; // setup (eye light sensing; measurement range 2)
break;
}
 
case SENSE_IR:
{
command=0b11100000; // setup (eye light sensing; measurement range 2 [4000 lx])
command=0b11100001; // setup (eye light sensing; measurement range 2 [4000 lx])
break;
}
60,14 → 59,14
 
// Setup device
Wire.beginTransmission(address);
Wire.write(0x00); // sends address
Wire.write(command); // setup (eye light sensing; one time measurement; measurement range 1)
Wire.write(byte(0x00)); // sends address
Wire.write(byte(command)); // setup (eye light sensing; one time measurement; measurement range 1)
Wire.endTransmission(); // stop transmitting
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.write(0x00); // sends address (command register)
Wire.write(byte(0x00)); // sends address (command register)
Wire.endTransmission(); // stop transmitting
// verify written command byte
84,11 → 83,11
 
float get_light_measurement()
{
int ret=0;
unsigned int ret=0;
 
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.write(0x01); // sends address of LSB reagister
Wire.write(byte(0x01)); // sends address of LSB reagister
Wire.endTransmission(); // stop transmitting
// Connect to device and request one byte
99,7 → 98,7
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.write(0x02); // sends address of MSB register
Wire.write(byte(0x02)); // sends address of MSB register
Wire.endTransmission(); // stop transmitting
// Connect to device and request one byte
108,7 → 107,7
ret +=256 * Wire.read();
Wire.endTransmission(); // stop transmitting
 
return (1000.0/pow(2.0,16)*ret);
return (4000.0/pow(2.0,16)*ret);
}
 
void loop()
117,12 → 116,13
 
set_light_sensor(SENSE_VIS); //setup sensor for visible measuring
led_blink(); // Delay for measurement
Serial.print("lux=");
Serial.println(get_light_measurement(),2);
Serial.print("luxVIS\t");
Serial.print(get_light_measurement(),1);
Serial.print("\t");
 
set_light_sensor(SENSE_IR); // setup sensor for infrared measuring
led_blink(); // Delay for measurement
Serial.print("luxIR=");
Serial.println(get_light_measurement(), 2); // data print
Serial.print("luxIR\t");
Serial.println(get_light_measurement(),1); // data print
}