Arduiono Essay

CHATER FOUR
4 HARDWARE DISCRIPTION:
4.1 AUDIONO DUE:
The arduiono due is a microcontroller board based on the ATmega168. Following are the features of it
• 14 digital input and output pins
• ICSP header
• 6 analog inputs
• 16MHz crystal oscillator
• USB connection
• Power jack
• Operating voltage is 5v
• reset button
• Input voltage 7-12v
• Dc current input 40mA
• Flash memory 16KB
• SRAM 1KB
• EEPROM 512 bytes Fig 4.1 arduiono due
4.2 SOLAR PANEL:
Conversion of solar waves into electricity or the device on which solar waves strike is known as solar panel.
4.2.1 INTRODUCTION:
To generate electricity from solar energy Photovoltaic cells or panels are only one way

4.2.2 TYPES OF SOLAR CELLS AND PANELS: 4.2.2 .1 Monocrystalline: These cells are cut from a single crystal of silicon- they are effectively a slice from a crystal. it has a smooth texture in appearance ,the thickness of the slice is shown in figure.

These are the most efficient and the most expensive to produce. They are also rigid and must be mounted in a rigid frame to protect them. In the lower light conditions they perform better than the many other types of the solar panel.

fig 4.3 monocrystalline
4.2.2 .2 Polycrystalline (or Multicrystalline)
These cells are effectively a slice cut from a block of silicon, consisting of a large number of crystals.
In appearance they have a speckled reflective , the thickness of the slice is shown in figure

These cells are slightly less efficient and slightly less expensive than monocrystalline cells and again need to be mounted in a rigid frame. The efficiency of poly crystalline instead of mono crystalline is not effected by part of the panel placed in shadow, this is one of the advantage of poly crystalline over mono