Datasheet
Arduino Code
If you're using an AD595 interface chip, you can simply connect the voltage output to an analog input on your
microcontroller and do some basic math to multiply the 10 mV/°C input into numerical output.
If you're planning to use the MAX6675/MAX31855, there's a little more work to be done. First off, Vin and GND must
connect to a 3-5V supply. Then the three data pins must connect to digital IO pins:
CLK (clock) is an input to the MAX6675/MAX31855 (output from microcontroller) which indicates when to present
another bit of data
DO (data out) is an output from the MAX6675/MAX31855 (input to the microcontroller) which carries each bit of
data
CS (chip select) is an input to the MAX6675/MAX31855 (output from the microcontroller) which tells the chip
when its time to read the thermocouple and output more data.
In the beginning of our sketches, we define these pins. For our examples DO connects to digital 3, CS connects to
digital 4, and CLK connects to pin 5
© Adafruit Industries https://learn.adafruit.com/thermocouple Page 6 of 18