MAX6875 Temp Sensor example

libraries/MAX6675/examples/read_temp/read_temp.pde

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+/*
+  Single_Temp.pde - Example using the MAX6675 Library.
+  Created by Ryan McLaughlin <ryanjmclaughlin@gmail.com>
+
+  This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
+  http://creativecommons.org/licenses/by-sa/3.0/
+*/
+
+#include <MAX6675.h>
+
+int LED1 = 9;             // Status LED Pin
+int CS = 10;             // CS pin on MAX6675
+int SO = 12;              // SO pin of MAX6675
+int SCK = 13;             // SCK pin of MAX6675
+int units = 2;            // Units to readout temp (0 = raw, 1 = ˚C, 2 = ˚F)
+float temperature = 0.0;  // Temperature output variable
+
+
+// Initialize the MAX6675 Library for our chip
+MAX6675 temp(CS,SO,SCK,units);
+
+
+// Setup Serial output and LED Pin  
+// MAX6675 Library already sets pin modes for MAX6675 chip!
+void setup() {
+  Serial.begin(9600);
+  pinMode(LED1, OUTPUT);
+}
+
+void loop() {
+	// Read the temp from the MAX6675
+	temperature = temp.read_temp();
+
+	if(temperature < 0) {                   
+		// If there is an error with the TC, temperature will be < 0
+		Serial.print("Thermocouple Error on CS");
+		Serial.println( temperature ); 
+		digitalWrite(LED1, HIGH);
+	} else {
+		Serial.print("Current Temperature: ");
+		Serial.println( temperature ); 
+		digitalWrite(LED1, LOW);
+	}
+ 
+	// Wait one second before reading again
+	delay(1000);	
+}