People expect the bar to show a percentage.
RSSI isn't strictly defined, some chipsets (e.g. Atheros) have a 7-bit range, 0-127. Some of them (e.g. Cisco) return 0-100, etc.
So just find out what the range is for this chipset, convert it to a percentage if it's not already 0-100, and fill a bar appropriately. For added flair, change the color of the bar based on the % value.
|