#include "max6675.h"
int SO = 4;
int CLK = 5;
int CS1 = 6;
int CS2 = 7;
int CS3 = 8;
MAX6675 tc1 (CLK, CS1, SO);
MAX6675 tc2 (CLK, CS2, SO);
MAX6675 tc3 (CLK, CS3, SO);
void setup(void)
{
Serial.begin(9600);
}
void loop() {
Serial.print("temp C1 ");
Serial.println(tc1.readCelsius());
delay(500);
Serial.print("temp C2 ");
Serial.println(tc2.readCelsius());
delay(500);
Serial.print("temp C3 ");
Serial.println(tc3.readCelsius());
delay(500);
}
This code run OK