Published November 15, 2021 © GPL3+

Plantoolighter

Plantoolighter is a system which redirect sunlight to the plants which are adjacent to garden wall and unable to get proper sunlight.

BeginnerFull instructions provided9 hours2,775

Things used in this project

Hardware components

Arduino UNO

LDR, 5 Mohm

Resistor 100k ohm

Power Bank

SG90 Micro-servo motor

Mirror

cardboard 20x20 cm

Aluminium Sheet Strips

Jumper wires (generic)

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Drill, Screwdriver

Tape, Masking

Story

Mission:

My mission is to provide sunlight to the trees so that they grow because the trees which are near the wall do not get sunlight, so I have to save them.

Story:

In my garden, there are small trees which are adjacent to the wall of the garden, due to this the trees did not get sunlight properly. Those trees are small and unable to grow, as a nature lover I listen to their problems and decided to save them. So I designed this plant lighter that redirects sunlight to the trees for the optimal amount of time so that they get proper growth and with no harm.

The image below shows my garden and small plants are marked in it.

Red marked plants are asking for help

The below image shows the wall which is just in front of my garden which will get sunlight from 14:00 to 17:00. This is an optimal place where I cat fit plantoolighter so that it can reflect sunlight from here to the garden.

Wall in front of my garden

The below video shows how the sunlight will be reflected from wall to garden.

What is plantoolighter?

Plantoolighter is a device that runs on electric power, and it redirects the sunlight with the help of a mirror (Shining surface).

Plantoolighter

As you are able to see in the image the Arduino with LDR (Light dependent resistance) is used to detect sunlight, when sunlight is directed on it activates the motor. A motor that is used over here is a servo in the image left side is a servo motor that is capable to handle 9gram of weight which is good for mirror handling and another advantage is the servo allows us to rotate at a specific angle continuously i.e. sweeping. So here plantoolighter will redirect sunlight with the help of a mirror and servo. There is a power bank on the back, it will power Arduino and servo both.

Assembly:

Reflector:

This is having a servo and a U shape aluminum strip attached to it. Then with the help of cardboard and masking tape, I attached the mirror on that U shape aluminum strip as shown in the image below.

1 / 2 • Reflector system

The base for the system and components attaching:

I used a cardboard sheet 20x20 cm which will act as a base to carry the whole system. this base is stuck on L shape aluminum strip and a 3mm hole is done in the strip so that it can be attached to the wall.

Then I also gathered all components of the system i.e power bank, Arduino with LDR attached, and reflector.

1 / 2 • all components of system

Then I use double-sided tape to put the components on the board, as shown in the below image

Attaching components with double sided tape

Then I did cut according to the size of the servo to affix it in the base. As shown below image.

cut for servo

Then I mounted it on the wall with the help of a 3 mm drill and screw.

Plantolighter mounted on wall

Circuit and Code:

The circuit connection is shown in the schematic diagram, check the attachment. Where I attached LDR on Analog input 0 of Arduino. And servo on D9 pin which is PWM pin of Arduino. The below image shows the flow chart of code and the code is attached in the code section check it below.

Flow chart of Plantoolighter

Working Video:

The below video shows how the plants are saved now.

Code

Plantolighter Code

int ldr_pin = A0;
int ldr_val = 0;
int temp=0;
#include <Servo.h>
Servo myservo;
int pos = 0;
void setup() {
  Serial.begin(9600);
  pinMode(ldr_pin,INPUT);
  myservo.attach(9);
  myservo.write(pos);
}
void loop() {
  ldr_val = analogRead(ldr_pin);
  temp=map(ldr_val,0,1023,0,100);
  Serial.println(temp);
  if (temp >= 95){
    for (pos = 0; pos <= 45; pos += 1) { 
    myservo.write(pos);             
    delay(100);                      
  }
  for (pos = 45; pos >= 0; pos -= 1) { 
    myservo.write(pos);              
    delay(100);                      
  }
  }
 }

Credits

Varun Sontakke

1 project • 3 followers

Plantoolighter

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Mission:

Story:

What is plantoolighter?

Assembly:

Reflector:

The base for the system and components attaching:

Circuit and Code:

Working Video:

Schematics

Connection Diagram

Code

Plantolighter Code

Credits

Varun Sontakke

Comments

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Plantoolighter

Plantoolighter

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Mission:

Story:

What is plantoolighter?

Assembly:

Reflector:

The base for the system and components attaching:

Circuit and Code:

Working Video:

Schematics

Connection Diagram

Code

Plantolighter Code

Credits

Varun Sontakke

Comments

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