import machine
import onewire
import ds18x20
import time

# DS18B20接在GP22
ow = onewire.OneWire(machine.Pin(22))
ds = ds18x20.DS18X20(ow)

# 扫描传感器
roms = ds.scan()
print('找到传感器数量:', len(roms))

while True:
    ds.convert_temp()
    time.sleep_ms(750)  # DS18B20转换需要750ms
    
    for rom in roms:
        temp = ds.read_temp(rom)

        if temp < 12:
            status = '偏低'

        elif temp > 31:
            status = '偏高'
     else:
            status = '正常'        

     print(f'温度: {temp:.1f} °C| 状态: {status}')
    
    print('---')
    time.sleep(2)