import?time
import?serial
import?binascii
import?RPi.GPIO?as?GPIO
GPIO.setmode（GPIO.BOARD）
GPIO.setup（11?GPIO.OUT）?#蜂鳴器針腳
GPIO.setup（12GPIO.INpull_up_down=GPIO.PUD_DOWN）?#有毒氣體檢測針腳
GPIO.setup（13GPIO.OUT）?#有毒氣體燈光針腳
GPIO.setup（15GPIO.OUT）?#溫度燈光針腳
GPIO.setup（18GPIO.OUT）?#co2濃度燈光針腳


def?buzzer（）:?#聲音報警
????
????pu={
????“1“:261.36
????“2“:293.66
????“3“:329.63
????“4“:349.23
????“5“:392
????“6“:440
????“7“:439.88
????}

????p?=?GPIO.PWM（11?1）??
????p.start（50）
????try:
????????xxx=“1155665-4433221“
????????for?i?in?xxx:
????????????
????????????if?i?==?“-“:
????????????????time.sleep（0.5）
????????????????continue
????????????p.ChangeDutyCycle（50）
????????????p.ChangeFrequency（pu[i]）
????????????time.sleep（0.5）
????????????p.ChangeDutyCycle（0）
????except:
????????pass
????p.stop（）
????
????

def?Toxic_gas（a）:?#有毒氣體檢測
????ydu_bj=a
????try:
????????GPIO.setup（12GPIO.INpull_up_down=GPIO.PUD_DOWN）
????????
????????status?=?GPIO.input（12）
????????if?status?==?True:
????????????ydu_bj=0
????????????print（“未發現有毒氣體“）
????????????GPIO.output（13False）?#有毒氣體報警燈暗
????????else?:
????????????ydu_bj?=?ydu_bj?+1
????????????if?ydu_bj>1:
????????????????print（“發現有毒氣體“）
????????????????GPIO.output（13True）?#有毒氣體報警燈亮
????????????????buzzer（）
????????????????????
????????????else:
????????????????print（“可能有有毒氣體“）
????????return?ydu_bj
????except?KeyboardInterrupt:
????????pass
????????return?ydu_bj

def?wendu（abc）:
????try:
????????
????????wen=a
????????shi=b
????????wen_bj=c
????????GPIO.setmode（GPIO.BOARD）
????????
????????channel?=?16???????????#引腳號16??
????????data?=?[]???????????#溫濕度值
????????j?=?0???????????????#計數器?????????
????????GPIO.setup（channel?GPIO.OUT）?
????????time.sleep（1）
????????GPIO.output（channel?GPIO.LOW）??
????????time.sleep（0.024）????????#給信號提示傳感器開始工作
????????GPIO.output（channel?GPIO.HIGH）?
????????GPIO.setup（channel?GPIO.IN）?
????????while?GPIO.input（channel）?==?GPIO.LOW:?
????????????continue
????????while?GPIO.input（channel）?==?GPIO.HIGH:?
????????????continue?
????????while?j?????????????k?=?0
????????????while?GPIO.input（channel）?==?GPIO.LOW:??
????????????????continue
????????????while?GPIO.input（channel）?==?GPIO.HIGH:??
????????????????k?+=?1
????????????????if?k?>?100:??
????????????????????break
????????????if?k?????????????????data.append（0）??
????????????else:??
????????????????data.append（1）??
????????????j?+=?1??
???????????
????????humidity_bit?=?data[0:8]????????#分組??
????????humidity_point_bit?=?data[8:16]??
????????temperature_bit?=?data[16:24]??
????????temperature_point_bit?=?data[24:32]
????????check_bit?=?data[32:40]??
????????humidity?=?0??
????????humidity_point?=?0??
????????temperature?=?0??
????????temperature_point?=?0??
????????check?=?0??
????????for?i?in?range（8）:??
????????????humidity?+=?humidity_bit[i]?*?2?**?（7?-?i）??????????????#轉換成十進制數據??
????????????humidity_point?+=?humidity_point_bit[i]?*?2?**?（7?-?i）??
????????????temperature?+=?temperature_bit[i]?*?2?**?（7?-?i）??
??????