Tasker getting wifi info for unconnected networks Is it possible to discover signal strength info for unconnected networks? I want to switch networks if the current signal is weak AND there is a stronger signal available. I have hunted for a relevant plugin to no avail. Thanks
Here is a workaround you could use:

This workaround involves:


creating a simple tasker profile which notifies you when an unconnected WLAN with a good signal is detected.
creating a  notification (flash/blink/notification flash)-as you wish which will alert you when a good signal is available nearby.


connecting to a WLAN AP which has been classified as having a good signal



This involves using a %WIFII which shows information on detected WLAN APs ( useful info on mac address, signal strength, broadcast channel etc)

Task

A1:Alert >> Flash (or Notify LED or vibrate).
   Text: WLAN APs with good signal available
   Since WIFI signal strength ranges from 1-9 you may define strong signal as those above 5 (its up to you) See screenshot.



Screenshot (click image for larger variant)

A2: Net >> WiFi >> Set-On [If %WIFI~Off]

Profile

You can accomplish this by using a WifiNear profile to detect nearby WLAN APs.

In the profile tab, select State >> Wifi Near (You may put additional info for SSID/MAC/Channel if you want to connect to a specific AP) 
but if you want detection for any access point leave as it is.
Also you can leave toggle wifi unticked if "Keep Wi-Fi ON" option is enabled in advanced wifi settings

Note: When any profile has a WiFi Near state, it will do regular scans for nearby APs (roughly every 120 secs default). 
You may change this in preferences of Tasker 

Limitations: 


Once connected to a WLAN AP automatically, the context scan will be ignored until you move out of range of your currently connected AP.
Only previously saved APs are connected automatically since one can't access an encrypted WLAN except that they previously saved the password in the device.