openmv连接dht11模块,网上找的代码看不懂,不过程序可以用
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from pyb import dht_readinto class DHTBase: def __init__(self, pin): self.pin = pin self.buf = bytearray(5) def measure(self): buf = self.buf dht_readinto(self.pin, buf) if (buf[0] + buf[1] + buf[2] + buf[3]) & 0xff != buf[4]: raise Exception("checksum error") class DHT11(DHTBase): def humidity(self): return self.buf[0] def temperature(self): return self.buf[2] class DHT22(DHTBase): def humidity(self): return (self.buf[0] << 8 | self.buf[1]) * 0.1 def temperature(self): t = ((self.buf[2] & 0x7f) << 8 | self.buf[3]) * 0.1 if self.buf[2] & 0x80: t = -t return t
from pyb import dht_readinto,在官网没有找到pyb模块中dht_readinto这个函数