Impact of RSSI on connectivity

RE: Impact of RSSI on connectivity

haakonsh — Wed, 17 Nov 2021 13:34:26 GMT

[quote user="wyang0824"]When the alarm device is far away from the central device, the connection will have a problem (the disconnection reason is 0x3e)[/quote]

How far? And is it line-of-sight?

It could be problem with the HW design or a timing issue. What are your clock configuration and have you had a proper HW review of the central and peripheral devices?

[quote user="wyang0824"]There are about 400 Bluetooth peripherals around us, and then turn on 100 peripherals. We only analyze the broadcast information of these 100 peripherals.[/quote]

It could be an interference issue, what is the peripherals advertising interval?

RE: Impact of RSSI on connectivity

wyang0824 — Wed, 17 Nov 2021 12:14:37 GMT

There are about 400 Bluetooth peripherals around us, and then turn on 100 peripherals. We only analyze the broadcast information of these 100 peripherals. If one of the 100 devices alarms, the central device will connect with the alarm device. When the alarm device is far away from the central device, the connection will have a problem (the disconnection reason is 0x3e)

RE: Impact of RSSI on connectivity

haakonsh — Tue, 16 Nov 2021 10:09:41 GMT

The Resceived Signal Strength Indicator does not determine whether you can establish a connection or not. You can however use it as an indicator for your signal strength. If you're having difficulty establishing a connection with an RSSI of -70dBm then it's likely that you are experiencing RF interference. Also I suggest you create a new private ticket and ask for a HW review if your having range issues.