am2315.py 文件源码

def measure(self):
        self.wakeup()

        # request measure 
        wbuf = bytearray( 3 )
        wbuf[0] = AM2315_READREG
        wbuf[1] = 0x00 # Start at adress 0x00
        wbuf[2] = 0x04 # Request 4 byte data

        self.i2c.writeto( self.addr, wbuf ) # b'\x03\x00\x04' )

        # wait 1.5+ ms before reading
        time.sleep_ms( 2 )

        # Request 8 bytes from sensor
        #rbuf = bytearray( 8 )
        self.i2c.readfrom_mem_into(self.addr, 0, self.rbuf) # Read from Reg 0

        return self.check_response()