Micro Bluetooth with Thermocouple

Hello Arduino Forum!

I don't know a lot about arduino, but I'm hoping I can use it...I'm looking for the smallest form factor bluetooth device that I can use with a type-k thermocouple.

All I want to do is have a small, magnetic doohicky that I can stick to metal things (like an oil plug on a car) and measure temperature from my phone.

Where should I start?

k-thermocouple will require an instrumentation (transconductance) amplifier, so I would suggest starting at that point and considering Bluetooth later.


Once you have this working correctly, then the Bluetooth can be done (much less expensive units available) by something like:


Hopefully, you have the magnet covered? (Rhetorical)