信息科技八年级-第五单元-第24课-农业生产新模式

from educore import oled, rfid, button, ultrasonic, wifi, mqttclient

wifi.connect(ssid='mywifi', psd='123456789', timeout=10000)

mqttclient.connect(server='iot.mpython.cn', port=1883, client_id='5b47f14909', user='5b47fkYKD0', psd='5b47f9KEFp')
scan_rfid = rfid(sda=1, scl=0)
k = button(button.a)
sonic = ultrasonic(sda=20,scl=19)
oled.print('等待扫描...')
rf = scan_rfid.scanning()
sn = rf.serial_number()
while True:
    v = 100 - sonic.distance()
    oled.print('奶牛编号: ' + str(sn) + '\n产奶量: ' + str(v))
    if k.status() == 1:
        mqttclient.publish(topic='5b47fWllPg', content='奶牛编号: ' + str(sn) + '\\n产奶量: ' + str(v))