树莓派|树莓派蓝牙测距功能树莓派蓝牙测距功能

啥也不说了直接上代码

# sudo pip3 install bluepy from bluepy.btle import Scanner, Peripheral import time def scan(): scanner=Scanner() devs=scanner.scan(2) print("扫描到的设备一共有：" + str(len(devs))) for dev in devs: distance(dev.addr,dev.rssi) def distance(mac,rssi): # d = 10^((abs(RSSI) - A) / (10 * n)) # d - 计算所得距离 # RSSI - 接收信号强度（负值） # A - 发射端和接收端相隔1米时的信号强度 # n - 环境衰减因子 rssi = abs(rssi) power = ((rssi - 59)/(10 * 2.0)) power = (10 ** power)print("MAC = "+ mac +", distance = "+str(power) + " m") while True: scan() time.sleep(1)