Community about the single-board computers, micro-controllers and related projects.
Other RaspberryPi communities on Lemmy
If a Pi Zero-W: https://hackaday.com/2017/03/07/adding-an-external-antenna-to-the-raspberry-pi-zero-w/
All the other models, you can add a USB-based adapter with their own antennas. For really long range, look up Yagi antennas. However, beware there are regulations on antennas.
Why not buy an external wifi adapter with a large antenna? Would be a lot simpler.
I agree with this. And also, if the highest range is your goal, you'll want a directional (not omni-directional) antenna. Even a cantenna might be good for your use case.
Yes, but not easily.
https://youtube.com/watch?v=Y648CjIiEv8
You can do it for other boards by cutting traces and soldering the antenna directly. You can buy antennas from Aliexpress.
Unless your a good solderer, itll be very hard.
It's not very hard if you have some experience with SMD soldering. The other boards do have a footprint for a U.FL connector, but you have to scrape off some solder mask for the ground pads.
Thats a bit like saying "Its easy for an expert" :D If you can do it, thats some mad skills you've got.