WiFi RSSI to percentage
Posted: Sat Oct 26, 2019 11:11 am
by hellraise007
I would like to send the WiFi signal strength as percentage via mqtt. What is the conversion factor of RSSI value to percentage?
Please correct me if I am using a wrong method.
Re: WiFi RSSI to percentage
Posted: Sat Oct 26, 2019 1:48 pm
by lbernstone
Using a percentage is misleading, most people recognize the "bars" for signal strength better than a number.
https://www.netspotapp.com/what-is-rssi-level.html
It is better to send the strength as collected, and let the server (or consumer) on the other end do the conversion. Raw data is more accurate, and is less work for your $4 IoT processor.
Re: WiFi RSSI to percentage
Posted: Sun Oct 27, 2019 1:22 pm
by hellraise007
lbernstone wrote: ↑Sat Oct 26, 2019 1:48 pm
Using a percentage is misleading, most people recognize the "bars" for signal strength better than a number.
https://www.netspotapp.com/what-is-rssi-level.html
It is better to send the strength as collected, and let the server (or consumer) on the other end do the conversion. Raw data is more accurate, and is less work for your $4 IoT processor.
Hi,
Thank you for your reply. Problem is that I am handling the server as well. Is it not possible to fix an upper threshold and lower threshold for the dbm value?
I have looked at the link, is the signal quality pictorial representation consistent among all WiFi devices (or all RF devices)?