[esp8266_micropython] 光敏电阻传感器模块+看门狗

mao_jin_dao

# 接线

AO->A0
DO-D1
# 代码

1. 
   
2. import  machine
   
3. import time
   
4. import network
   
5. from machine import WDT,Pin
   
6. import time
   
7. import network
   
8. from umqtt.simple import MQTTClient
   
9. import json
   
10. import gc
    
11. 
    
12. device_id = "esp0007"
    
13. wifi_ssid='FAST_20CC'
    
14. wifi_password='409409409'
    
15. mqtt_serverip='192.168.1.113'
    
16. mqtt_serverport=1883
    
17. mqtt_clientid=device_id
    
18. mqtt_publishtopic=b'espiot'
    
19. 
    
20. digital_pin = machine.Pin(5)
    
21. adc_pin = machine.ADC(0)
    
22. 
    
23. led=Pin(2,Pin.OUT)
    
24. led.on()
    
25. 
    
26. def connectionWifi(ssid, password):
    
27.   wlan = network.WLAN(network.STA_IF)
    
28.   wlan.active(True)
    
29.   wlan.connect(ssid, password)
    
30.   while True:
    
31.     if not wlan.isconnected():
    
32.       led.on()
    
33.       time.sleep_ms(1000)
    
34.       led.off()
    
35.       time.sleep_ms(1000)
    
36.     else:
    
37.       print('connected to network')
    
38.       led.on()
    
39.       break
    
40. 
    
41.   
    
42. if __name__=='__main__':
    
43.   print ("start")
    
44.   
    
45.   message_template = {}
    
46.   message_template['source_device'] = mqtt_clientid
    
47.   message_template['target_device'] = 'server'
    
48.   message_template['msg_type'] = 'ReportLuminance'
    
49.   
    
50.   connectionWifi(wifi_ssid,wifi_password)
    
51.   
    
52.   client = MQTTClient(mqtt_clientid,mqtt_serverip,mqtt_serverport)
    
53.   client.connect()
    
54.   
    
55.   wdt = WDT()
    
56.   wdt.feed()
    
57.   
    
58.   count = 0
    
59.   
    
60.   while True:
    
61.     digital_value = digital_pin.value()
    
62.     adc_value = adc_pin.read()
    
63.     wdt.feed()
    
64.     print (digital_value)
    
65.     print (adc_value)
    
66.     message_template['digital'] = str(digital_value)
    
67.     message_template['adc'] = str(adc_value)
    
68.     wdt.feed()
    
69.     wdt.feed()
    
70.     client.publish(mqtt_publishtopic,json.dumps(message_template))
    
71.     wdt.feed()
    
72.     count = 0
    
73.     while count < 50:
    
74.       time.sleep_ms(100)
    
75.       wdt.feed()
    
76.       count = count + 1
    
77.     gc.collect()
    
78. 
    

复制代码

# 结果

sufe08

这里用到看门狗的目的是…？

mao_jin_dao

sufe08 发表于 2024-4-23 19:49
这里用到看门狗的目的是…？

重启路由器导致网络中断时，esp自动重启，阻塞在网络连接逻辑直到网络恢复。