DHT22 Sensor Python Code for Orange PI Zero

phyesix

Hi,

I bought the DHT22 sensor, but I could not get it to work in any way. What is wrong in this code block:

1. #!/usr/bin/env python
   
2. from pyA20.gpio import gpio
   
3. from pyA20.gpio import port
   
4. from pyA20.gpio import connector
   
5. from time import sleep
   
6. 
   
7. def bin2dec(string_num):
   
8.     return str(int(string_num, 2))
   
9.    
   
10. data = []
    
11. 
    
12. #GPIO.setmode(GPIO.BCM)
    
13. PIN = port.PA3
    
14. 
    
15. gpio.init()
    
16. gpio.setcfg(PIN, gpio.OUTPUT)
    
17. 
    
18. gpio.output(PIN,gpio.HIGH)
    
19. sleep(0.018)
    
20. gpio.output(PIN,gpio.LOW)
    
21. sleep(0.018)
    
22. 
    
23. #gpio.setup(PIN, gpio.IN, pull_up_down=gpio.PUD_UP)
    
24. gpio.setcfg(PIN, gpio.INPUT)
    
25. 
    
26. for i in range(0,500):
    
27.     data.append(gpio.input(PIN))
    
28.    
    
29.    
    
30. bit_count = 0
    
31. tmp = 0
    
32. count = 0
    
33. HumidityBit = ""
    
34. TemperatureBit = ""
    
35. crc = ""
    
36. 
    
37. 
    
38. try:
    
39.    while data[count] == 1:
    
40.       tmp = 1
    
41.       count = count + 1
    
42.         
    
43. 
    
44.    for i in range(0, 32):
    
45.       bit_count = 0
    
46.       
    
47.       while data[count] == 0:
    
48.          tmp = 1
    
49.          count = count + 1
    
50. 
    
51.       while data[count] == 1:
    
52.          bit_count = bit_count + 1
    
53.          count = count + 1
    
54. 
    
55.       if bit_count > 3:
    
56.          if i>=0 and i<8:
    
57.             HumidityBit = HumidityBit + "1"
    
58.          if i>=16 and i<24:
    
59.             TemperatureBit = TemperatureBit + "1"
    
60.       else:
    
61.          if i>=0 and i<8:
    
62.             HumidityBit = HumidityBit + "0"
    
63.          if i>=16 and i<24:
    
64.             TemperatureBit = TemperatureBit + "0"
    
65.             
    
66. except:
    
67.    print "ERR_RANGE 1"
    
68.    exit(0)
    
69. 
    
70.    
    
71. try:
    
72.    for i in range(0, 8):
    
73.       bit_count = 0
    
74.       
    
75.       while data[count] == 0:
    
76.          tmp = 1
    
77.          count = count + 1
    
78. 
    
79.       while data[count] == 1:
    
80.          bit_count = bit_count + 1
    
81.          count = count + 1
    
82. 
    
83.       if bit_count > 3:
    
84.          crc = crc + "1"
    
85.       else:
    
86.          crc = crc + "0"
    
87. except:
    
88.    print "ERR_RANGE 2"
    
89.    exit(0)
    
90.       
    
91.       
    
92. Humidity = bin2dec(HumidityBit)
    
93. Temperature = bin2dec(TemperatureBit)
    
94. 
    
95. if int(Humidity) + int(Temperature) - int(bin2dec(crc)) == 0:
    
96.    print Humidity
    
97.    print Temperature
    
98. else:
    
99.    print "ERR_CRC 3"

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nopnop2002

There is DHT11-Python-library-Orange-PI

https://github.com/Vitalik-Samets/DHT11-Python-library-Orange-PI

jendy

Playing games can teach Eggy Car resilience. Many games are challenging, and overcoming obstacles within them often requires patience and persistence. This experience of facing in-game setbacks can help players develop a stronger mindset, making it easier to tackle real-life challenges with determination.