This project is about using Led to helps plants grow.

Red LED can help plant's Promote lateral branching and tillering

Green LED can help plants Strengthen growth

Blue LED can help plant Shorten internodes, reduce leaf area, reduce relative growth rate, and increase nitrogen ratio

And this project gather 3 LED to let the plants growing work getting easier.

Which part of the plant that you are not satisfaction, you can use the different LED to change it.

LED Growing
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Step 1: Things to Use

Prepare cardboard x 6

Red Led x 3, Green LED x 3, Blue LED x 3

Cellophane x 1

Breadboard x 1

wire x 21

Resistance x 9

Botton x 3

Step 2: How It Works?

Three Button

when to push, one of them, the Red LED will shine

one of them, the Green LED will shine

one of them, the Blue LED will shine

Step 3: Code

void setup(){ // put your setup code here, to run once:

pinMode( 4 , INPUT); // sets the digital pin as input pinMode( 11 , OUTPUT); // sets the digital pin as output pinMode( 12 , OUTPUT); // sets the digital pin as output pinMode( 13 , OUTPUT); // sets the digital pin as output pinMode( 3 , INPUT); // sets the digital pin as input pinMode( 8 , OUTPUT); // sets the digital pin as output pinMode( 9 , OUTPUT); // sets the digital pin as output pinMode( 10 , OUTPUT); // sets the digital pin as output pinMode( 2 , INPUT); // sets the digital pin as input pinMode( 5 , OUTPUT); // sets the digital pin as output pinMode( 6 , OUTPUT); // sets the digital pin as output pinMode( 7 , OUTPUT); // sets the digital pin as output }

void loop(){ // put your main code here, to run repeatedly: if (digitalRead( 4 )) { digitalWrite( 11 , HIGH ); // sets the digital pin on/off digitalWrite( 12 , HIGH ); // sets the digital pin on/off digitalWrite( 13 , HIGH ); // sets the digital pin on/off delay( 5000 ); // waits a few milliseconds digitalWrite( 12 , LOW ); // sets the digital pin on/off digitalWrite( 13 , LOW ); // sets the digital pin on/off digitalWrite( 11 , LOW ); // sets the digital pin on/off } if (digitalRead( 3 )) { digitalWrite( 8 , HIGH ); // sets the digital pin on/off digitalWrite( 9 , HIGH ); // sets the digital pin on/off digitalWrite( 10 , HIGH ); // sets the digital pin on/off delay( 5000 ); // waits a few milliseconds digitalWrite( 8 , LOW ); // sets the digital pin on/off digitalWrite( 9 , LOW ); // sets the digital pin on/off digitalWrite( 10 , LOW ); // sets the digital pin on/off } if (digitalRead( 2 )) { digitalWrite( 5 , HIGH ); // sets the digital pin on/off digitalWrite( 6 , HIGH ); // sets the digital pin on/off digitalWrite( 7 , HIGH ); // sets the digital pin on/off delay( 5000 ); // waits a few milliseconds digitalWrite( 5 , LOW ); // sets the digital pin on/off digitalWrite( 6 , LOW ); // sets the digital pin on/off digitalWrite( 7 , LOW ); // sets the digital pin on/off } }

(You needs to change the delay(5000) to how long you needs, or wants the LED shine )