Arduino Project

Hi

I need to measure temperature from 3 thermocouple and when one of them passes a sorting temp force a an led to turn on. Since there is so many boards out there I need help with deciding with which board to go with.

Is there a small size board that is also has wifi capability, because for this project the board needs to be small.

Any tips are appreciated.

The WeMos D1 Mini is pretty small and quite a nice board. There are some newer official Arduino that are small and with WiFi:

I don't have any experience with the new Arduino boards.

The ESP32 boards are getting more popular but they tend to be a little bigger than the ESP8266 boards simply because they have more pins.