MAX6675 Module + K Type Thermocouple Sensor Measure 1024°C Temperature

  • Internal integrated cold junction compensation circuit
  • Temperature signal may be transformed into a 12-bit digital format via a straightforward three serial SPI interface
  • circuits for embedded thermocouple break detection.
  • Inputs with high impedance differentials.
  • Voltage Difference (VDC): 3 to 5.5
  • Range of Temperature (°C): 0 to +1024
  • Compensation Range for Cold Junction (°C): -20 to +80

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Description

The Maxim MAX6675 K-Thermocouple to Digital Converter IC is used by this MAX6675 Module + K Type Thermocouple Sensor Measure 1024°C Temperature sensor to provide a digital serial interface (SPI compatible) compatible with microcontrollers for an accurate temperature compensated measurement of the supplied K-Type thermocouple sensor.

It provides temperature readings with a resolution of 0.25°C and a 12-bit range from 0°C to 1024°C (the maximum temperature of the supplied sensor is 450°C).

The thermocouples’ spade connectors can be connected to screw terminals, and an Arduino development board or other microcontroller can be accessed by a standard 5-pin 0.1′′ header.

The thermocouple sensor that is provided has a 4.5 mm diameter and a 6 mm threaded mounting bolt. The sensor is around 50 cm long overall, including the cable and spade connectors.

Features: 

  • Built-in cold junction compensating circuit on the inside
  • It is possible to convert a temperature signal to 12-bit digital
  • circuits for embedded thermocouple break detection
  • K-style thermometer
  • Basic serial output temperature for SPI
  • Inputs with high impedance differentials
  • Detection of thermocouple breaks
  • An ESD signal of 2000V
Connect your Arduino to the Thermocouple Module

Pretty simple stuff.   Keep the note about the thermocouple polarity in mind as you make these connections.

Robu MAX6675 with Arduino


Copy and Paste the Arduino MAX6675 Sketch:
// Sample Arduino MAX6675 Arduino Sketch

#include "max6675.h"

int ktcSO = 8;
int ktcCS = 9;
int ktcCLK = 10;

MAX6675 ktc(ktcCLK, ktcCS, ktcSO);

  
void setup() {
  Serial.begin(9600);
  // give the MAX a little time to settle
  delay(500);
}

void loop() {
  // basic readout test
  
   Serial.print("Deg C = "); 
   Serial.print(ktc.readCelsius());
   Serial.print("t Deg F = ");
   Serial.println(ktc.readFahrenheit());
 
   delay(500);
}

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