FilesExpand file tree

 main

/

micro.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

60 lines (45 loc) · 1.4 KB

 main

/

micro.py

Top

File metadata and controls

• Code
• Blame

60 lines (45 loc) · 1.4 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

import RPi.GPIO as GPIO

import paho.mqtt.client as mqtt

import json

import time

broker_address = ""

broker_port = 1883

client_id = ""

def on_connect(client, userdata, flags, rc):

print("Connected with result code " + str(rc))

client.subscribe("test_topic/log")

def on_message(client, userdata, msg):

print(msg.topic + " " + str(msg.payload))

GPIO.setmode(GPIO.BCM)

GPIO.setwarnings(False)

TRIG = 3

ECHO = 17

print("micro_disance")

def micro():

GPIO.setup(TRIG, GPIO.OUT)

GPIO.setup(ECHO, GPIO.IN)

GPIO.output(TRIG, False)

print("micro output reset")

try:

while True:

GPIO.output(TRIG, True)

time.sleep(1)

GPIO.output(TRIG, False)

while GPIO.input(ECHO) == 0:

start = time.time()

while GPIO.input(ECHO) == 1:

stop = time.time()

check_time = stop - start

distance = check_time * 34300 / 2

print("Distance : %.1f cm" % distance)

client.publish("test_topic", json.dumps({"message":"7F1001100120202307211312570036.56829211128.709214209500001%1.f007E" % distance }))

time.sleep(1)

except KeyboardInterrupt:

print("complete")

GPIO.cleanup()

client = mqtt.Client(client_id)

client.on_connect = on_connect

client.on_message = on_message

client.connect(broker_address, broker_port, 60)

client.loop_start()

micro()