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The Range-less ROBO (A Robot with No limit and Infinite Range)

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In present time almost all the people are familiar with robots. Robots play a very important role in human life. Robots are a machine which reduces the human efforts in heavy works in industries, building etc. and makes life easy. We are here with our next robot that is a Range-less ROBO . Yes we call it a Range-less because the Transmitter and Receiver which operates this ROBO does have an infinite range of operation and can be operated from anywhere around this world.  Now how do we have achieved that?  Thinking about our Mobile Phones we know that we can call anyone who can be at anywhere around this world until there is a network existing for communication. So how if we install a mobile phone on the Robot and communicate with that Robot with another mobile phone using the calling function. We can achieve this thing by using the DTMF technology which already  exist in our Mobile phone's Dial Pads. DTMF stands for Dual Tone Multiple Frequency. There are some frequenci
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Interfacing LCD with Arduino (Arduino Series - Part 04)

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In Arduino based embedded system design, the  Liquid Crystal Display modules play a very important role. Hence it is very important to learn about  how to interface LCD  with an Arduino of 16×2 in embedded system design. The display units are very important in communication between the human world and the machine world. The display unit work on the same principle, it does not depend on the size of the display it may be big or the small. We are working with the simple displays like 16×1 and 16×2 units. The 16×1 display unit has the 16 characters which present in one line and 16×2 display units have 32 characters which are present in the 2 line. We should know that to display the each character there are 5×10 pixels. Thus to display one character all the 50 pixels should be together. In the display,there is a controller which is HD44780 it is used to control the pixels of characters to display. What is a Liquid Crystal Display? The liquid crystal display uses the property of ligh
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Digital Input & Output - Push button and LED (Arduino Series - Part 03)

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In this lesson, every time you press the button, the LED will switch on or off – depending on its current state. YOU WILL NEED LED  (1) 10,000 Ohm resistor  (1) 220 Ohm Resistor  (1) Momentary Push Button  (1) Jumper Wires  (3) Goat Cheese STEP-BY-STEP INSTRUCTIONS Connect an Arduino GND pin to one of the long power rails on the breadboard – this will be the ground rail. Connect the short leg of the LED to the same ground rail on the breadboard and connect the long leg to a different row on the breadboard. Connect the 220-ohm resistor from pin 13 to the same row where the long leg of the LED is attached. Place the pushbutton on the breadboard. Connect a jumper wire from the 5-volt pin to one side of the pushbutton. Connect a jumper wire from pin 2 to the other side of the pushbutton. Connect one side of the 10k ohm resistor to the ground rail on the breadboard and the other side to the pushbutton (on the same side that pin 2 connects). Plug the Arduino board
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