ARDUINO

Arduino Tutorials :-
In today's world everything that is used has a micro-controller built inside. A micro-controller basically controls the working of the entire system. 

The most common question is - 'What is the difference between a micro-controller and a micro-processor.

• MICRO-PROCESSOR - 
• It is a chip that has only a CPU, which performs the logical and arithmetic operations. It is the heart of the a computer.
•  It does not have any inbuilt memory or RAM. They have to be attached externally.
• They are used for applications with no specific use like for software development, gaming, xtreme calculations... etc.
• Depending on use of microprocessor, the requirement of peripherals (RAM, graphics, HDD) also increases.
• They are costly.
• MICRO-CONTROLLER - 
• It is a modified version of a micro-controller.
• It has a CPU along with a fixed amount of RAM, ROM and other peripherals embedded on the same micro-controller chip.
• As every thing is embedded on a single chip. They require less space.
• They are for specific applications, where input and output are specified. They keep on repeating a set of functions till the time the user wants.
• They are relatively cheaper than micro-controllers.

Arduino is a micro-controller programming board. The on-board micro-controller is programmed using c++ language explained in the following tutorials...

• Arduino basics for programming.

• Arduino basics - Loops and Conditional statements

• Arduino basics - Creating functions and return types.

• Coming Soon !!!

Recently I was working on a project of sound. I worked on making an radar but instead of using radio waves, I used sound waves.

Ultrasound lies in the frequency range of 20KHz and above. 

The property of waves is to bounce of the surface on which it is incident. This property was used to detect any obstacle using an ultrasonic sensor.
And on detection fire it using a gun.

Click on the below link to read more --- 

ULTRASONIC DETECTION AND AUTO-FIRING