TEMT6000 Ambient light sensor เซ็นเซอร์วัดความเข้มแสง

sparkfun

This sensor can handle voltages from both 5V and 3.3V devices.

cybertice : 50 บาท
meltsee.th : 25บาท

int sensor = 26;

void setup() {
Serial.begin(9600);
}

void loop() {
int val = analogRead(sensor);
Serial.print ("ค่าแสง : ");
Serial.println(val);

delay(100);
}

// https://www.cybertice.com/product/1534/temt6000-ambient-light-sensor-%E0%B9%80%E0%B8%8B%E0%B9%87%E0%B8%99%E0%B9%80%E0%B8%8B%E0%B8%AD%E0%B8%A3%E0%B9%8C%E0%B8%A7%E0%B8%B1%E0%B8%94%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B9%80%E0%B8%82%E0%B9%89%E0%B8%A1%E0%B9%81%E0%B8%AA%E0%B8%87

#define LEDPIN 25         //LED brightness (PWM) writing
#define LIGHTSENSORPIN 26 //Ambient light sensor reading 

void setup() {
  pinMode(LIGHTSENSORPIN,  INPUT);  
  pinMode(LEDPIN, OUTPUT);  
  Serial.begin(9600);
}

void loop() {
  float reading = analogRead(LIGHTSENSORPIN); //Read light level
  float square_ratio = reading / 1023.0;      //Get percent of maximum value (1023)
  square_ratio = pow(square_ratio, 2.0);      //Square to make response more obvious

  analogWrite(LEDPIN, 255.0 * square_ratio);  //Adjust LED brightness relatively
  Serial.println(reading);                    //Display reading in serial monitor
  delay(500);
}

// https://learn.sparkfun.com/tutorials/temt6000-ambient-light-sensor-hookup-guide/all