We're using our Raspberry Pi 3 to control some music and lighting over it's access point with a smartphone - completely offline, on a handcart. Now we have connection problems when we're getting to far away from our Pi (like 10-20 meters). Is there some practical solution we could use for our problem? Like some extender or antenna?

We have no internet on that WiFi, it's just used to get a connection from our smartphones to the handcart.

  • Is the handcar metal? Guessing, you might be able to make the surface into an antenna ground plane. On the other hand, that may be your problem. Like I said, guessing. – st2000 Oct 30 '17 at 12:15
  • Yup, it got a metal construction and the walls are made of wood. You've done that already once? A WiFi ground plane antenna? – dabo248 Oct 30 '17 at 12:26
  • It was the next step I was going to take / experiment with. Fortunately relocating the WIFI radios work. You might also look at this stackexchange answer. – st2000 Oct 31 '17 at 1:06

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