The Particle web interface of a Boron shows in the vitals section a cellular signal indicator:
The network section of the raw json vitals data looks like this:
"network":{
"signal":{
"rssi":-83,
"strength":39.58,
"quality":63.26,
"qualityv":-9,
"at":4,
"strengthv":-83
}
}
What algorithm is used to calculate the number of bars from this data?