I require a brief explanation of interfacing Arduino with a thermocouple sensor with connections(along with thermocouple connections with the module +,- ) and code. I tried all the library codes available for MAX6675 but none of them gave me proper output. please help
Which thermocouple do you have ?
I had a bit of a faff with a thermos recently. I had success with the Adafruit lib. Any sort of lose wiring caused issues with the reading.
Which Arduino board are you using and how is it being powered? I was using a Nano with an external power supply to 5V, which caused issues with the CS pin of the MAX6675 breakout board. I ended up using USB directly with the Nano, solving that issue.
I'm using UNO and MAX6675k module with no external power supply.I tried with adafruit only and it did not work. Im only getting zero degrees. its not changing at all
Okay. I know you've probably done this multiple times but check the wiring. Every time I got zero is when the wiring was wrong or a lose connection. Do you have a different thermo to try?
I tried with 2 new thermocouples but with the same module. Is there any possibility that the module is not working yet still shows zeros? also I ordered module online so not sure if it is completely alright. I just replaced all the wires and put them back again and it's still showing zeroes
Please post your best effort at coding for these sensors and a full circuit diagram
try this library - GitHub - enjoyneering/MAX6675: Arduino library for 12-bit MAX6675 K-thermocouple to digital converter
It has some test capabilities:
- thermocouple is broken or unplugged
- thermocouple "T-" pin is not grounded
Some thermocouples have a grounded tip which can cause problems - test you thermocouple not mounted to anything