Did you have to do any configuration with this? Turn off Pi internal antenna and make this the main antenna? Or pretty much plug and play? I have BT issues and was trying to find one that was pi friendly. None listed specifically for pi or Linux, but since you have tested this, I may buy it for $10 on Amazon.
For others reading this, bought and tested EDUP EP-B3552 Plus BT 5.3 dongle, and although it works at boot with devices like Airthings, it keeps crashing over time and requires a platform reboot to work again.
Would not recommend.
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I bought this from Amazon UK last October, and it seems to be working well - I have 8 Bluetooth ThermoPro TP357 scattered thought the house.
With Kernel 6.6.66 the ats2852 ought to be supported (https://www.phoronix.com/news/Linux-6.6.66-LTS-Released), ordered a UGreen BT 5.3 adapter with that one to test.
Works well, FWIW.
Thanks for the recommendation 
- I bought this, and after a reboot, it seems to be working perfectly 
Just plug & play. Stock antenna is enough and I just disable build-in rpi4 bluetooth module in the settings
I purchased this one a couple years ago to work with my home assistant virtual box set up. It works very well!
Got UGREEN CM591, at first it worked fine, but then it started to take 1 minute to trigger my Switchbot Bot. I enabled passive mode in the HA Bluetooth settings and it seems to be fixed.
I hope this USB Bluetooth Adapter method of connecting bluetooth devices like Xiaomi thermometers to Home Assistant Green is a plug and play solution, as I have no idea how to ‘configure’ the set-up file in Home Assistant, and all my bluetooth devices will go to waste!
Did you have to configure anything? I purchased this exact same adapter and I’m getting error message: hc10 not found
No. Simply plugged it in & it worked as expected.
@Vitruvius Thanks for sharing the UGreen’s USB device ID. My Intel MBP running Catalina finally allowed it to be shared via USB filtering but my HAOS didn’t like it at all! Thoughts? Time to get something else?
Never mind! I rebooted the VM and it is now working!
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I purchased 2 UGREEN adapters and both seem to work fine (except the 5.0 one without antenna has not great range).
So initially bought this one since it was Bluetooth 5.0 and I hoped that it’s more likely to be supported:
UGREEN Bluetooth Adapter 5.0 USB… UGREEN Bluetooth Adapter 5.0 USB Low Energy Dongle for PC Long Range Mini Wireless Computer Adaptor Compatible with Desktop Laptop Mouse Keyboard Printer Speaker Support Windows 11/10/8.1/7: USB Network Adapters: Amazon.com.au
The range was not good though and it was losing my Inkbird CO2 monitor.
So I got the 5.3 one with antenna, and it works great!
UGREEN Long Range Bluetooth 5.3… UGREEN Long Range Bluetooth 5.3 Adapter for PC, 328FT/100M USB Dongle, Wireless Transmitter Receiver for Mouse Keyboard Headphones Speakers for Win11/10/8.1 : Amazon.com.au: Electronics
Asus NUC with windows server 2025 with HA running in VirtualBox.
The only issue I have is that at startup (after windows reboot and Virtual box boot) the Bluetooth adapter has issues being used by the HA VM. So I have to go to device manager, disable built in Intel Bluetooth, disable UGREEN one, then enable UGREEN (after that it dissaperars from device manager meaning it was picked up by HA VM) and then enabling Intel adapter (which make the NUC to regain bluetooth connection over Intel datapter).
I have a script for that which is scheduled to run after scheduled startup of HA VM is done.
I purchased the Maxine USB 5.3 Adapter https://www.amazon.es/dp/B0BQ3964FP?ref=ppx_yo2ov_dt_b_fed_asin_title
for less than € 6.- .
Shutdown HA, plugged in the Maxuni Adapter, starting HA and was recognized from the Bluethoot integration. Running HA on Rpi4, Then set the Shelly RC Button 4 to paring mode and was immediately recognized from BT Home. Press any of the 4 buttons to add them to HA. Works fine in automation.
Does it matter what OS HA is running on for these to work?
I have HAOS directly running on a x64 micro PC, should it work for me?
Can someone recommend an adapter, without an antenna, with the same (or preferably better) range than the built-in one on the RPI4?
Great success with this adapter form Amazon. It works out of the box and the rrange seems to be good so far tested.
ASIN: B0F4JRHS47
Wat is your system config?
I have a Proxmox system V9 (Linux kernel 6.14) with a VM running HAOS. Will this bluetooth adaptor work? Most bluetooth adapters mention “not compatible with Mac OS, Linux, Car Stereo systems, XBOX or TV.”
