Arduino Project

Projects General Guidance
1

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.

2

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.