Arduino Experiments

Reference Links 

https://www.arduino.cc/reference/en/



1 ) Analog Signals 

    Read / Write 
    
    > Variable Resistors 
    > Led output < working with brightness 

    https://www.arduino.cc/reference/en/
    
    analogRead() 

    analogWrite() 
    
    Accelerometer > 3 analog signals .
    
2) Digital Signal Read and Write 

    > Led On and Off as output
    > Switch read as input 
        digitalRead() 
        pinMode() 
    
    > DHT 11 sensor - library 
      Google for "dht arduino library"
      https://github.com/adafruit/DHT-sensor-library
      https://github.com/adafruit/Adafruit_Sensor
        

3) I2C based Signal 

    > Sensor library  <mpu6050> 
            Accelerometer Value 
            Gyroscope angles 
            
            >> https://github.com/jarzebski/Arduino-MPU6050  
            
            
    > LCD display i2c based . 
    https://github.com/fdebrabander/Arduino-LiquidCrystal-I2C-library
    
    

4) SPI Based Signals 

    > Nokia 5110 
      https://github.com/adafruit/Adafruit-PCD8544-Nokia-5110-LCD-library
  

5) Serial based 

    > sim based 
    
    https://www.elecrow.com/wiki/images/2/20/SIM800_Series_AT_Command_Manual_V1.09.pdf
    
    https://github.com/cristiansteib/Sim800l
    
    
    > GPS based Comunication . 
    https://github.com/mikalhart/TinyGPS
    
    
    > Bluetooth Based - BLE Vs Bluetooth v4 

6) PWM based 
    > Read data from Analog pins and write the value to Digital Pins . 
      
      
    
    
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7) Virtual Pins 
    > Some Virtual Values  from Cloud and retrive them on Device  . 
    
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8) Servo Motors : 

   >  0 -180 degress 
   
9) Relays <Control Electrical Appliances >

            < digitalWrite() >
    
10) Solenoids : 
          Door lock 
                Control with relay and seperate power supply 
                Motor Driver 

11) Water Flow meter :  

           no of litres of fluid which  has passed through it 
           
           <Interrupt based >
           https://github.com/sekdiy/FlowMeter
           
           
           
           

/* Sweep
by BARRAGAN http://barraganstudio.com
This example code is in the public domain.

modified 8 Nov 2013
by Scott Fitzgerald
http://www.arduino.cc/en/Tutorial/Sweep
*/

#include <Servo.h>

Servo myservo,myservo1,myservo2; // create servo object to control a servo
// twelve servo objects can be created on most boards

int pos = 0; // variable to store the servo position

void setup() {
myservo.attach(7); // attaches the servo on pin 9 to the servo object
}

void loop() {
for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
// in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(50); // waits 15ms for the servo to reach the position
}
for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(10); // waits 15ms for the servo to reach the position
}
}