15 meter Bluetooth Proxy

ESPHome
1

Can someone recommend a device that will communicate to a Bluetooth device at 15 meters in open air?

I read that Bluetooth 5.x can go 4 times the distance as 4.x. Is it correct to assume I should pick a ESP chipset that uses Bluetooth 5.0 or later? Most recommendations seem to be chips that are 4.3.

Is there a device that offers an external Bluetooth antenna? I understand for a proxy it is not ideal to have the WiFi and Bluetooth on the same radio chip and antenna. Is this correct?

My project is a Luba 2 lawn mower. Ideally I’d put a chip right in the lawn mower but this is a remote project where I need to ship the device to a friend and they are not capable of soldering so I prefer to just have something simple they can plug in. I need the Bluetooth Proxy so I can control it manually from a remote location when it gets stuck.

The ideal device would use Bluetooth 5.0 or later and an external Bluetooth antenna with a case and power supply. I can put components together but I am sort of stuck on the comment that the Bluetooth antenna should be separate from WiFi.

2

So get out from your stuck, Esp only has one radio and one antenna.
Any external antenna you choose serves for both. 15meters open view shouldn’t be problem.

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3

And use Ethernet.

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4

Definitely not ‘ideal’, but in general practice it tends to work fine. I have loads of BT Proxies setup and they’re all on Wi-Fi. If it’s a specific concern, go with a board that has Ethernet like @nickrout mentioned.

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