I am looking to add a second Wi-Fi Adapter to a raspberry pi but due to the constraints of where I am planning on utilising my project a USB adapter is not suitable. I am therefore looking for recommendations for one that has a HAT form factor, a quick google has not yielded any results only bringing up ones suited for a Pico or USB version.
What model Pi is it? There are M2 WIFI cards that “might” work in the NVMe base or DUO?
It is probably going to be a 3B(+)
I wish you luck, I’m also not seeing anything compatible search wise.
What kind of communication do you want to do? The most simple and cheap solution would be something like an ESP-01S (or almost any other ESPxx-chip) with the ESP-AT firmware. These chips only need UART and power, and will give you basic wifi-functionality which you drive by AT-commands.
See for example: raspberrypi:getting_started [ESP8266 Support WIKI]
This shows the basic wiring, but regarding the AT-commands you need to do additional research. But for basic-stuff, it is fairly simple and you will find many libraries. Some of them are Python based. Porting these to standard CPython for the Pi should not be that complicated.
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