I'd like to get the Arduino to read temperatures of up to 200C/400F but using a Type J thermocouple. Adafruit sells an excellent Type K thermocouple breakout for the Arduino, but sadly I can't find anything similar for Type J thermocouples. Does anyone know of anything or can show me how to wire up a Type J thermocouple ampliflier to an Arduino platform?
kg4wsv:
Er, did you read the Analog web page you posted? That one only covers 0 to 50C.
Check out this thread. I don't know of a breakout board with this part on it, but it's compatible with the MAX6674/6675 (except the voltage).
-j
I thought that was just the 0-50C cold junction temperature or room temp reference point??? A J thermocouple measures whatever a type J thermocouple can measure.