View source for Stock workshop Robotics and Modular Machines:

Robotics and Modular Machines

learning process

document photos...

for optical instrument

code:

//no moter
//sensor pin
const int ldrPin = A1;

//light pin
const int ledPin = 13;
//speaker pin
const int speakerPin = 9;

void setup(){
 Serial.begin(115200);
 // using those pins as output

 pinMode(ledPin, OUTPUT);
 pinMode(speakerPin, OUTPUT);
}


void loop() {
  int ldrVal = analogRead(ldrPin);
  //map the value of the light sensor
  ldrVal = map(ldrVal, 170, 600, 0, 1023);
  //constrain the vaule from 0 to 1023
  ldrVal = constrain(ldrVal, 0, 1023);
// turning on the led
  digitalWrite(ledPin, HIGH);

  Serial.println(ldrVal);

  makeTone(ldrVal);

}

void makeTone(int freq){
    digitalWrite(speakerPin, HIGH);
    delayMicroseconds(freq);
    digitalWrite(speakerPin, LOW);
    delayMicroseconds(freq);
}

Hardware:

[[image:IMG 2901.JPG| 900px]]