Plant Lighting System
If you’re trying to grow some plants indoors, you’ll find that some rooms of your house are low in natural light. Sunlight is the perfect balance of wavelengths necessary for plant growth and blooming, but plants at different growth stages have special requirements of light.
To provide the proper amount of lighting to plants and to carry out projects like indoor gardening a plant lighting system is required, which you will make in this project. LDR sensors will be used to keep track of the amount and the power LEDs are turned ON and the brightness is tuned accordingly.
Which color light is best for plant growth?
Plants respond favorably to specific wavelengths of the light spectrum. In contrast, LED’s have the ability to produce wavelength specific light. This is the biggest advantage of LED in the indoor growing market. Each led emits a specific wavelength. Greenlight is the least effective for plants growth because of the green pigment Chlorophyll present on them. Different color light helps plants achieve different goals as well. Blue light, for example, helps encourage vegetative leaf growth. Red light, when combined with blue, allows plants to flower.
Aim of the Experiment :
To make an automatic Plant Lighting System.
Minimum Requirements :
Arduino UNO
LDR Sensor
3W LED (Red/Blue)
10KOhm Resistor
Jumper Wires
3W LED :
The High Power LED is comparable in brightness to the standard incandescent and halogen light bulbs. This makes the High Power LED perfect for automotive, industrial, home and hobby applications. Not only are they bright, but they also consume a fraction of power of an incandescent bulb making them extremely energy efficient
The High Power LED incorporates an aluminum heat sink to dissipate heat. Simply connect the large + and – pads on the PCB to a current limited power source to enable the LED.
Before making circuit connections, we need to know the following things regarding Blue and red power LED:
For high power red LED the working voltage: 2.0v-2.5v Typical: 2.1vCurrent: 650-700mA.
- For high power blue LED the working voltage: 3.0v-3.5v Typical: 3.3 vCurrent: 650-700mA.
