ARDUINO PROJECTS

                        SEVEN SEGMENT  display using ARDUINO        STEP1-            After three steps we will learn to write the word ON SEVEN SEGMENT (common cathod).   1. fist we configure the seven segment common cathode display. The common cathode display is have 10 pins . Five upper side and five lower side . The middle pin of upper side pin is the ground pin and similarly the lower side the middle pin is ground pin . the ground pins are common pin . we doesn't need to connect upper pin to  ground separately. fist we connect the ground pin to ground and the we connect 3.3v pin  of the micro controller and variable resistance. the output pin of the variable resistance  is our test pin .  we will connect this pin to the seven segment pin and test .  ...

                             ARDUINO NAO DISCRIPTION                                                           8-bit AVR Microcontrollers AT                                                  introduction                    ...

                    ANALOG SIGNAL READ USING ARDUINO     IN  this blog you will read about analog signal . the analog signal is that type of signal which are varying with time. may be repeat itself after interval of time. The value of signal changes with time. in simple form we can say the value of signal is in sine , cosine or tangent form .               The temperature sensor gives output in analog form . the output current changes according to temperature. the most common temperature sensor ic is lm35. three pin ic . connect the temprature sensor with the aurdino pin A0 and connect the arduino with the computer and open the terminal . we we will see the value of temprature of atmosphere.                                     connect the aruduino  bord with the computer....

                             fade a led using arduino  here we will find that how the analog pins are use for the working purpose...  we are not only fading the led .. we also using the variable resistor for  very sensitive case. the output of the pin13 will be change from high - low when we move the joystick. /*  Fade  This example shows how to fade an LED  using the analogWrite() function.  This example code is in the public domain.  */  const int lowestPin = 2; const int highestPin = 13; int value1=0; int joyPin1 = 0; int led = 13;           // the pin that the LED is attached to int brightness = 0;    // how bright the LED is    // how many points to fade the LED by // the setup routine runs once when you press reset:...

                                       arduino projects                         input output control using  button.            const int  button_a =2; //define button 1 // const int button_b =3; //define button 2 // const int led_A= 12;//define led 1// const int led_B =13;//define led 2// int button_State =0; int  button_State1=0; void setup() {   pinMode(button_a,INPUT);   pinMode(button_b,INPUT);   pinMode(led_A,OUTPUT);   pinMode(led_B,OUTPUT); } void loop() {   button_State=digitalRead(button_a);   if(button_State==HIGH)   {    digitalWrite (led_A,LOW);   }    else{        digitalWrite( led_A,HIGH);  ...