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Automated Sunflower

In this example we will make an automated sunflower that moves according to the position of light.

Materials:​

  • Franzininho DIY board
  • Breadboard
  • 3mm LED
  • 1 LDR resistor (photoresistors 10k)
  • 1 Servo motor
  • Male/female jumper wires

Circuit​

On the breadboard insert the photoresistors and servo motor as shown in the image below:

Circuit

Code​

/*
Franzininho
Example: Automated Sunflower
In this example we have an automated sunflower with two photoresistors, a servo motor, and other materials.
*/

#include <Servo.h>

int sensor = A;
int servoMotor = 1;

int sensorValue = 0;
int servoAngle = 90;

Servo servo;

void setup() {
  servo.attach(servoMotor);
  servo.write(servoAngle);
}

void loop() {
  sensorValue = analogRead(sensor);
  if (sensorValue < 512)
  {
    if (servoAngle < 170) servoAngle++;
  }
  if (sensorValue >= 512)
  {
    if (servoAngle > 10) servoAngle--;
  }

  servo.write(servoAngle);
  delay(50);
}

Explanatory Video​

This project was made to collaborate in the Red Hat Co.Lab project. Check it out and other projects on the platform: https://www.redhat.com/pt-br/colab-repo

Co.Lab | Workshop: Educational Robotics - Learn about Natural Sciences and Electronics (Part 1)​

Co.Lab | Workshop: Educational Robotics - Learn about Natural Sciences and Electronics (Part 2)​

Reference​

Arduino Sunflower

AuthorDiana Santos
Date:22/01/2022