I have an Arduino Uno I need to connect to Wi-Fi to make HTTP POST Requests to a Raspberry Pi Web Server.
The Arduino is located only about 30 feet from the AP, but there is a brick wall in the line of sight, and it is in a metal outdoor enclosure. For that reason, I wanted to attach an external Wi-Fi Antenna which would stick out a sealed hole in the enclosure.
I was contemplating using an ESP8266 Wi-Fi module, but it does not look like there is an easy way to attach the antenna.
What would be the best Wi-Fi module to which I could attach an external antenna for an Arduino Uno?