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- Hacker News
- Silver-coated wire? I don't have that lying around.by minimaltom
- The antenna on these cheapo modules is bodged anyway. They don't get a good signal out and it's not just because of the size. I have other modules from waveshare that use the same antenna and they work way way better.
So yeah I also do this if I really need the WiFi or Bluetooth. Usually I don't though.
Edit: oh I see he goes into that later. Like the way they don't leave a copper free space around the antenna. Exactly. They are a bit compromised but they are so so cheap.
by wolvoleo - Antenna design is a dark art, I like simple hacks like this.
> The two parts of the antenna are intentionally designed to create an omnidirectional radiation pattern without a pronounced directionality.
I worked on a project a while back to try to utilize this to detect the arrival direction of WiFi signals approximately based on received strength. Do this for enough base stations and you have a very crude positioning system.
by bArray