https://github.com/guycole/perky-thermometer

BeagleBone Black using the DHT20 thermometer/humidity sensor
https://github.com/guycole/perky-thermometer

beaglebone-black dht20 i2c thermometer

Last synced: about 2 months ago
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BeagleBone Black using the DHT20 thermometer/humidity sensor

• Host: GitHub
• URL: https://github.com/guycole/perky-thermometer
• Owner: guycole
• Created: 2022-05-25T05:20:44.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-06-04T03:51:57.000Z (over 3 years ago)
• Last Synced: 2025-04-06T17:52:14.697Z (6 months ago)
• Topics: beaglebone-black, dht20, i2c, thermometer
• Homepage:
• Size: 4.54 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# perky-thermometer

BeagleBone Black using the DHT20 thermometer/humidity sensor.

## Pins

    | Header | Pin | Name      | Description |

    |--------|-----|-----------|-------------|

    | P9     |  1  | DGND      | DHT20 Pin 3 |

    | P9     |  4  | VDD_3V3   | DHT20 Pin 1 |

    | P9     | 19  | I2C2_SCL  | DHT20 Pin 4 |

    | P9     | 20  | I2C2_SDA  | DHT20 Pin 2 |

i2c address = 0x38

root@altoid:~# i2cdetect -y -r 2

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 

10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

30: -- -- -- -- -- -- -- -- 38 -- -- -- -- -- -- -- 

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

70: -- -- -- -- -- -- -- --                         

root@altoid:~# 

i2cdump -y 2 0x38 b

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef

00: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18    ????????????????

10: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18    ????????????????

20: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18    ????????????????

30: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18    ????????????????

40: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18    ????????????????

50: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18    ????????????????

i2cset -y -r 2 0x38 0x71 0x01

i2cget -y 2 0x38 0x71