I have the internal bluetooth setup on my raspberry pi 4 and am eventually wanting to have it work with XIAOMI Mijia Bluetooth Thermometer 2 Wireless Smart Electric Digital Hygrometer Thermometer, but have not purchased them yet.
What I am trying to figure out is what kind of range to expect with the the internal bluetooth adapter since I have it in the basement and am wanting it to reach our 2nd floor? Then if it isn’t strong enough, is it recommend ded to get a USB bluetooth adapter with an external antenna to meet my requirements for coverage?
When trying to do some testing with getting the internal bluetooth of the pi 4 to connect to my phone on the first floor, they see each other but when they try to pair, it just fails. This was my method for trying to see the signal stremgth of it but can’t see what it is.