ble/beacon.py at master · gerhc/ble · GitHub

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# Beacon Class
# koki 15072015


class Beacon:

    """ private vars """
    uuid = "N/A"
    macs = []
    major = 0
    minor = 0
    txpower = 0
    rssi = 0

    def __init__(self, uuid, mac, major, minor, txpower, rssi):
        self.uuid = uuid
        self.macs = []
        self.macs.append(mac)
        self.major = major
        self.minor = minor
        self.txpower = txpower
        self.rssi = rssi

    def __str__(self):
        string = "-------------\n"
        string += "\tUDID: " + self.uuid
        string += "\tMAJOR: " + str(self.major)
        string += "\tMINOR: " + str(self.minor)
        string += "\tDIST: " + str(self.getDistance())
        # string += "\t(Unknown): " + str(self.txpower)
        # string += "\tRSSI:" + str(self.rssi)
        string += "\tMAC address: "
        if len(self.macs) > 1:
            string += str(len(self.macs))
        else:
            string += self.macs[0]

        return string

    def addMACadr(self, mac):
        if any(mac in s for s in self.macs):
            pass
        else:
            self.macs.append(mac)

    def updateData(self, txp, rssi):
        self.txp = txp
        self.rssi = rssi

    def getDistance(self):
        if self.rssi == 0:
            return -1.0

        if self.txpower == 0:
            return -1.0

        ratio = self.rssi * 1.0 / self.txpower
        if ratio < 1.0:
            return ratio ** 10
        else:
            return 0.89976 * ratio ** 7.7095 + 0.111