Android Bluetooth to Arduino and vice versa

Processing for Android
135

hi noel

this is nice if can run via bluetooth

import processing.serial.*;

 int adcValue = 0;        // value received from Serial 
 // String Unit="mA";
 // String Unit="kΩ";
 // String Unit="°C";     // We can use Unicode chars directly
String Unit="ANALOG READ";  
String Unit1="VALUE";   

// Unicode codes may be entered as well
 
 Serial myPort;
 PFont Segment, Units; 

 void setup() {
                          // Setup the display window 
  size(666, 280);         // Size of the window
  Segment = createFont("Segment7", 150);  // Assign fonts and size 
  Units = createFont("Arial", 40);
  textFont(Segment);
  textAlign(RIGHT);        // Text align 
  fill(250,250,0);         // Font color is yellow = red + green

 // println(Serial.list());    // List all the available serial ports
  // Then open the port  you're using, my is the first, i.e. '0'
myPort = new Serial(this,"COM3", 9600); 
 //  myPort = new Serial(this, Serial.list()[], 9600);
 // don't generate a serialEvent() unless you get a newline character:
   myPort.bufferUntil('\n');
 }

void draw()
{                      // Let's start to display
  background(0,0,0);   // set the background color black

  textFont(Segment);
  text(adcValue, 311, 250);
  
  textFont(Units);
  text(Unit,433,65);
text(Unit1,511,211);

}


void serialEvent(Serial myPort) 
{
 String inString = myPort.readStringUntil('\n');    // get the ASCII string:
 if (inString != null) 
    {
     inString = trim(inString);     // trim off any whitespace
     adcValue = int(inString);      // convert into an integer
     adcValue =int(map(adcValue, 0, 1023, 0, 1023));  // possible range adjusting
    }
 }

arduino

#include <SoftwareSerial.h>

SoftwareSerial LEDdisplej(2, 3); //RX pin, TX pin

int adcValue = 0;

void setup() {

      Serial.begin(9600);

  LEDdisplej.begin(9600);  // Talk to the Serial7Segment at 9600 bps
  LEDdisplej.write('v');   // Reset the display - this forces the cursor to return to the beginning of the display
}


void loop() 
{
  adcValue = 0;                           // Filter - average from 16 values 
  for (int i = 1; i<=16; i++)
    adcValue = adcValue + analogRead(0);
  adcValue = adcValue/16;

 
  char tempString[10];                     // Used for sprintf
  sprintf(tempString, "%4d",adcValue);     // Convert into a string that is right adjusted
  //sprintf(tempString, "%d", adcValue);   // Convert into a string that is left adjusted (requires digit 1 command)
  //sprintf(tempString, "%04d", adcValue); // Convert into a string with leading zeros
  //sprintf(tempString, "%4X", adcValue);  // Convert int  HEX, right adjusted
  
  LEDdisplej.print(tempString);            // Send serial string out the soft serial port to the S7S
 
  Serial.println(tempString);           // Works too, but we don't need trailing spaces ' ' in the front
  // Serial.println(adcValue);

  delay(100);
}