OCTeleShield telemetry example

example.ino

#include <SPI.h>
#include <Adafruit_MAX31855.h>

// Example creating a thermocouple instance with hardware SPI (Uno/Mega only)
// on a given CS pin.
#define CS1    2
#define CS2    3
Adafruit_MAX31855 th1(CS1);
Adafruit_MAX31855 th2(CS2);

int v1pin = A0;
int v2pin = A1;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  delay(2000);
  // Serial.println("MAX31855 test");
  // wait for MAX chip to stabilize
  Serial.println("#Millis,TC1Internal(C),TC1External(C),TC2Internal(C),TC2External(C),Voltage1(V),Voltage2(V)");
  delay(500);
}

void loop() {
  double c;

  Serial.print(millis());
  Serial.print(",");
  Serial.print(th1.readInternal());
  Serial.print(",");
  c = th1.readCelsius();
  if (isnan(c)) {
     Serial.print("");
  } else {
     Serial.print(c);
  }
  Serial.print(",");
  Serial.print(th2.readInternal());
  Serial.print(",");
  c = th2.readCelsius();
  if (isnan(c)) {
     Serial.print("");
  } else {
     Serial.print(c);
  }
  Serial.print(",");
  Serial.print(getVoltage(A0));
  Serial.print(",");
  Serial.print(getVoltage(A1));
  Serial.println("");
  delay(100);

}

double getVoltage(int pin) {
  int sensorValue;
  sensorValue = analogRead(pin);
  double multiplier = (10.0 + 33.2) / 10.0;
  double reading;
  reading = 5.0 * sensorValue / 1024.0 * multiplier;
  return reading;
}