Use LEDs to show signal strength with rssileds

The rssileds package allows you to control LEDs on a router or access point depending on the signal strength of a WiFi interface.

For instance, many wireless repeaters and range extenders have a signal strength meter on them for the received signal.

opkg update
opkg install rssileds

The rssileds configuration is stored in the “system” UCI section. At least two sections are needed.

Options available for the “rssi trigger”, for more details on other parameters refer to LED section in System configuration.

Name	Type	Required	Default	Description
iface	string	yes	(none)	Specifies the rssi block, must refer to the name defined in the “rssid” block sections
minq	integer	yes	(none)	The minimum quality percentage for the LED to turn on
maxq	integer	yes	(none)	The maximum quality percentage for the LED to turn on
offset	integer	no	0	Used for PWM LED, the led brightness is equal to the quality with the specified offset
factor	integer	no	1	Used for PWM LED, after the offset is applied, the brightness is scaled by the specified factor
With PWM capable LEDs the brightness is calculated as: brightness = ( quality + offset ) * factor
Any quality values outside the specified range will mean the LED is off

config rssid 'wlan0'         
        option refresh 40000          
        option threshold 1   
        option dev 'wlan0'
 
config led 'rssilow'                        
        option trigger 'rssi'               
        option name 'RSSILOW'               
        option iface 'wlan0'                
        option sysfs 'mt2681:green:rssilow'
        option minq '1'                    
        option maxq '100'    
        option offset '0'                  
        option factor '6'    
 
config led 'rssimedium'     
        option trigger 'rssi'              
        option name 'RSSIMEDIUM'
        option iface 'wlan0'    
        option sysfs 'mt2681:green:rssimed'
        option minq '30'                   
        option maxq '100'    
        option offset '-29'                
        option factor '5'    
 
config led 'rssihigh'       
        option trigger 'rssi'              
        option name 'RSSIHIGH'
        option iface 'wlan0'  
        option sysfs 'mt2681:green:rssihigh'
        option minq '70'                    
        option maxq '100'    
        option offset '-69'                 
        option factor '8'