Igaging and Mitutoyo Calipers and Micrometers as Input devices

want build own dro system? interface arduino igaging or mitutoyo caliper, mic, or scale.

http://arduinotronics.blogspot.com/2015/09/igaging-micrometers-and-calipers.html

code: [select]

int req = 5; //mic req line goes pin 5 through q1 (arduino high pulls request line low)

int dat = 2; //mic data line goes pin 2

int clk = 3; //mic clock line goes pin 3

int = 0; int j = 0; int k = 0;

byte mydata[14];

float num;

void setup() {

serial.begin(9600);

pinmode(req, output);

pinmode(clk, input_pullup);

pinmode(dat, input_pullup);

digitalwrite(req,low); // set request @ low

}

void loop() { // data mic

digitalwrite(req, high); // generate set request

for(i = 0; < 13; i++ ) {

k = 0;

for (j = 0; j < 4; j++) {

while( digitalread(clk) == low) {// hold until clock high

}

while( digitalread(clk) == high) {// hold until clock low

}

bitwrite(k, j, (digitalread(dat) & 0x1)); // read data bits, , reverse order )

}

// extract data

mydata[i] = k;

// sign = mydata[4];

// decimal = mydata[11];

// units = mydata[12];

}

// assemble measurement bytes

char buf[7];

for(int lp=0;lp<6;lp++)

buf[lp]=mydata[lp+5]+'0';

buf[6]=0;

num=atol(buf); //assembled measurement, no decimal place added

serial.println(num/1000, 3); //add decimal

}

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