/Modules/Sensors/ISL2902001A/SW/Arduino/i2c_light/i2c_light.pde
17,56 → 17,6
 
int data = 0;
 
void led_blink()
{
digitalWrite(3, HIGH); // set the LED on
delay(500);
digitalWrite(3, LOW); // set the LED off
delay(500);
}
 
 
int set_light_sensor()
{
// Setup device
Wire.beginTransmission(address);
Wire.send(0x00); // sends address
Wire.send(0b11100000); // setup (eye light sensing; measurement range 2 [4000 lx])
Wire.endTransmission(); // stop transmitting
}
 
int get_light_measurement()
{
int lux=0;
 
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.send(0x01); // sends address of LSB reagister
Wire.endTransmission(); // stop transmitting
// Connect to device and request one byte
Wire.beginTransmission(address);
Wire.requestFrom(address, 1);
data = Wire.receive();
Wire.endTransmission(); // stop transmitting
lux=data;
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.send(0x02); // sends address of MSB register
Wire.endTransmission(); // stop transmitting
// Connect to device and request one byte
Wire.beginTransmission(address);
Wire.requestFrom(address, 1);
data = Wire.receive();
Wire.endTransmission(); // stop transmitting
 
lux+=data*256;
return lux;
}
 
void loop()
{
int lux=0;
124,15 → 74,25
Wire.endTransmission(); // stop transmitting
// Serial.print(data, HEX);
lux+=data*256;
*/
 
Serial.print((unsigned)lux, DEC);
*/
 
set_light_sensor();
// Delay for measurement
led_blink();
Serial.print(" luxIR=");
// Setup device
Wire.beginTransmission(address);
Wire.send(0x00); // sends address
Wire.send(0b11100000); // setup (eye light sensing; measurement range 2 [4000 lx])
Wire.endTransmission(); // stop transmitting
// Delay for measurement
digitalWrite(3, HIGH); // set the LED on
delay(500);
digitalWrite(3, LOW); // set the LED off
delay(500);
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.send(0x00); // sends address
142,9 → 102,33
Wire.requestFrom(address, 1);
data = Wire.receive();
Wire.endTransmission(); // stop transmitting
 
// data print
Serial.print(" luxIR=");
Serial.println((unsigned)get_light_measurement(), DEC);
// Serial.print(data, HEX);
// Serial.print(" LSB=");
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.send(0x01); // sends address
Wire.endTransmission(); // stop transmitting
// Connect to device and request one byte
Wire.beginTransmission(address);
Wire.requestFrom(address, 1);
data = Wire.receive();
Wire.endTransmission(); // stop transmitting
// Serial.print(data, HEX);
lux=data;
// Serial.print(" MSB=");
// Connect to device and set register address
Wire.beginTransmission(address);
Wire.send(0x02); // sends address
Wire.endTransmission(); // stop transmitting
// Connect to device and request one byte
Wire.beginTransmission(address);
Wire.requestFrom(address, 1);
data = Wire.receive();
Wire.endTransmission(); // stop transmitting
// Serial.print(data, HEX);
lux+=data*256;
Serial.println((unsigned)lux, DEC);
}