+++++++++CALIPER DATA INTERFACE++++++++
-----FOOT SWITCH USED TO CAPTURE SINGLE MEASUREMENTS--------
-----LM339 VOLTAGE COMPARATOR FOR ACCURATE TTL---------------
-----CALIPER REGULATED VOLTAGE----------------------------------------
-----NO WEIRD LIBRARIES OR IDE'S TO DOWNLOAD----------------------
-----ALL FUNCTIONS ARE 100% VERIFIED----------------------------------
-----COMPLETE CODE AND SCHEMATIC ARE BELOW---------------------
=======HERE'S THEY ARE!!!===========
/*
________________________________________________________________
************Program Name:CALIPER_DATA_OUTPUT_05_20_2013
************By J. Poston:
**********Date Initiated:4-22-213
************Date Revised:5-20-2013
*/
int dataIn = 4;
int clockIn = 2;
const int buttonPin = 5; // the number of the pushbutton pin
int buttonState =0; // variable for reading the pushbutton status
const int i=10; //Determines the DELAY Low and High for each led state
int isin=0; //inch=1?mm=0
int isfs=0; //
int index;
unsigned long xData,oData;//
long previousMillis = 0; // will store last time LED was updated
long interval = 500; // interval at which to blink (milliseconds)
long previousGetMillis = 0; //
long Timeout = 8; // 8ms
const int ledon=3; // verification for experimenting change
int m;
void setup()
{
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);
digitalWrite(dataIn, 1);
digitalWrite( clockIn, 1);
pinMode(dataIn, INPUT); //DATA line goes to Arduino digital pin 4
pinMode(clockIn, INPUT);
Serial.begin(9600);
delay(500);
attachInterrupt(0,getBit,RISING); //CLOCK line goes to Arduino digital pin 2
index =0;
xData=0;
oData=999;
Print_Header();//Runs the Subroutine
pinMode(ledon,OUTPUT); //makes digital pin 3 and output
Test_Light(); //Runs the subroutine that makes pin 3 blink and LED
}
void loop()
{
buttonState = digitalRead(buttonPin);
delay(5);
if (buttonState == HIGH) {
if ((index !=0) && (millis() - previousGetMillis > Timeout) ) {
index=0;
xData=0;
};
if (index >23) {
if (oData !=xData) {
if (isfs==1)
Serial.print('-');
if (isin==1){ //
xData *=5;
Serial.print(xData/10000);
Serial.print('.');
if ((xData % 10000)<1000){
if ((xData % 10000)<100){
if ((xData % 10000)<10){
Serial.print('0');
};
Serial.print('0');
};
Serial.print('0');
};
Serial.println(xData % 10000);
delay(100); //keeps inches from spitting out lots of the same measures
}
else { // mm
Serial.print(xData/100);
Serial.print('.');
if ((xData % 100)<10) //0
Serial.print('0');
Serial.println(xData % 100);
};
};
oData =xData;
index=0;
delay(5);
xData=0;
};
if (millis() - previousMillis > interval) {
previousMillis = millis();
}
}
}
void getBit(){
previousGetMillis=millis();
if(index < 20){
if(digitalRead(dataIn)==1){
xData|= 1<<index;
};
}
else {
if (index==20)
isfs=digitalRead(dataIn);
if (index==23) //24 1=inch
isin=digitalRead(dataIn);
};
index++;
}
/*
^^^^^^^^^^^^^^^^^^^^^^^^Sub Routines^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*/
void Print_Header()
{
Serial.println("****************************************************************");
Serial.println(" Program: Digital Caliper Data SPC (Running) ");
Serial.println("****************************************************************");
}
void Test_Light()
{
delay(100);
for(m=0;m<20;m++)
{
digitalWrite(ledon,HIGH);
delay(30);
digitalWrite(ledon,LOW);
delay(30);
}
}
