I have the code to log data from sensors that is on the SD Library and I also have a code for a Geiger counter but I don't know how to implement my Geiger code into the datalogger code.
The DataLogger code
/*
SD card datalogger
This example shows how to log data from three analog sensors
to an SD card using the SD library.
The circuit:
* analog sensors on analog ins 0, 1, and 2
* SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4 (for MKRZero SD: SDCARD_SS_PIN)
created 24 Nov 2010
modified 9 Apr 2012
by Tom Igoe
This example code is in the public domain.
*/
#include <SPI.h>
#include <SD.h>
const int chipSelect = 4;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.print("Initializing SD card...");
// see if the card is present and can be initialized:
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// don't do anything more:
return;
}
Serial.println("card initialized.");
}
void loop() {
// make a string for assembling the data to log:
String dataString = "";
// read three sensors and append to the string:
for (int analogPin = 0; analogPin < 3; analogPin++) {
int sensor = analogRead(analogPin);
dataString += String(sensor);
if (analogPin < 2) {
dataString += ",";
}
}
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
File dataFile = SD.open("datalog.txt", FILE_WRITE);
// if the file is available, write to it:
if (dataFile) {
dataFile.println(dataString);
dataFile.close();
// print to the serial port too:
Serial.println(dataString);
}
// if the file isn't open, pop up an error:
else {
Serial.println("error opening datalog.txt");
}
}
The Geiger counter code
#include <SD.h>
#include <SPI.h>
#define LOG_PERIOD 15000 //Logging period in milliseconds, recommended value 15000-60000.
#define MAX_PERIOD 60000 //Maximum logging period
unsigned long counts; //variable for GM Tube events
unsigned long cpm; //variable for CPM
unsigned int multiplier; //variable for calculation CPM in this sketch
unsigned long previousMillis; //variable for time measurement
void tube_impulse(){ //procedure for capturing events from Geiger Kit
counts++;
}
void setup(){ //setup procedure
counts = 0;
cpm = 0;
multiplier = MAX_PERIOD / LOG_PERIOD; //calculating multiplier, depend on your log period
Serial.begin(9600); // start serial monitor
// uncommennt if you have time-out problem to connect with Radiation Logger
// delay(2000);
// Serial.write('0'); // sending zero to avoid connection time out with radiation logger
// delay(2000);
// Serial.write('0'); // sending zero to avoid connection time out with radiation logger
pinMode(2, INPUT); // set pin INT0 input for capturing GM Tube events
digitalWrite(2, HIGH); // turn on internal pullup resistors, solder C-INT on the PCB
attachInterrupt(0, tube_impulse, FALLING); //define external interrupts
}
void loop(){ //main cycle
unsigned long currentMillis = millis();
if(currentMillis - previousMillis > LOG_PERIOD){
previousMillis = currentMillis;
cpm = counts * multiplier;
Serial.print(cpm); // send cpm data to Radiation Logger
Serial.write(' '); // send null character to separate next data
counts = 0;
}
}