dht.py 文件源码

def get_ht_thread():
    global h
    global t
    while True:
        gpio_lock.acquire()
        ht = dht.read_retry(dht.DHT22, config.DHT22_GPIO_NUM)
        gpio_lock.release()
        h = '{0:0.1f}'.format(ht[0])
        t = '{0:0.1f}'.format(ht[1])
        h = string.atof(h)
        t = string.atof(t)
        time.sleep(2)