Project tutorial
Arduino Sunflower

Arduino Sunflower

The sunflower follows the light using a servo motor and two photoresistors.

  • 47,809 views
  • 43 comments
  • 118 respects

Components and supplies

Ph a000066 iso (1) ztbmubhmho
Arduino UNO
×1
Servo Motor
×1
Photoresistor
×2
Jumper
×10

About this project

The sunflower follows the light using a servo motor and two photoresistors.

Code

Solar Tracker CodeC/C++
#include <Servo.h>

int sensorPin = A0;
int servoPin  = 9;

int sensorValue = 0;
int servoGrad = 90;
int tolerance = 40;

Servo myservo;

void setup() {
  pinMode( sensorPin, INPUT);
  myservo.attach( servoPin );
  myservo.write( servoGrad );
}

void loop() {
  sensorValue = analogRead(sensorPin);
  if ( sensorValue < (512-tolerance) )
  {
    if (servoGrad < 180) servoGrad++;
  }

  if ( sensorValue > (512+tolerance) )
  {
    if (servoGrad > 0) servoGrad--;
  }

  myservo.write( servoGrad ); 

  delay(100);
}

Schematics

Sunflower Schematics
Download
Schermata 2018 03 03 alle 21 57 54 arqht6xwyl

Comments

Author

008c1350 370c 4a5f b1fb 117d97d44b08 r7kbm6lho7
Rick_Findus
  • 2 projects
  • 26 followers

Published on

September 15, 2017
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