gistfile1.txt

#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>

#define LOG_PERIOD 15000  //Logging period in milliseconds, recommended value 15000-60000.
#define MAX_PERIOD 60000  //Maximum logging period without modifying this sketch

Adafruit_PCD8544 display = Adafruit_PCD8544(7, 6, 5, 4, 3);
unsigned long counts;     //variable for GM Tube events
float cpm;        //variable for CPM
unsigned long multiplier;  //variable for calculation CPM in this sketch
unsigned long previousMillis;  //variable for time measurement
float MSVh;
float MR;

void tube_impulse(){       //subprocedure for capturing events from Geiger Kit
  counts++;
}
void setup()   
              {
  Serial.begin(9600);

  display.begin();

  display.setContrast(61);
  display.setRotation(2);
  display.clearDisplay();

        counts = 0;
        cpm = 0;
        multiplier = MAX_PERIOD / LOG_PERIOD;      //calculating multiplier, depend on your log period
        Serial.begin(9600);
        attachInterrupt(0, tube_impulse, FALLING); //define external interrupts 
               }


void loop() {
 unsigned long currentMillis = millis();
  if(currentMillis - previousMillis > LOG_PERIOD){
    previousMillis = currentMillis;
    cpm = counts * multiplier;
    MSVh = cpm/151;
    MR = MSVh * 100;
    
    Serial.print(cpm);
    display.setTextSize(1);
  display.setTextColor(BLACK);
  
  display.setCursor(10,0);
     display.println(MSVh);
     display.setCursor(5,20);
      display.println("mSv/h");

     display.setCursor(50,0);
     display.println(MR);
     display.setCursor(60,20);
     display.println("mRh");
      
     display.display();
     display.clearDisplay();
     
    counts = 0;
  }
}