Körde koden genom chatGPT:
It looks like this code is intended to read temperature and humidity data from a DHT22 sensor using the Adafruit DHT library. At a high level, the code initializes the DHT22 sensor and then enters a loop where it repeatedly reads temperature and humidity values from the sensor and prints them to the console.
There are a few things that could be improved in this code:
The DHT22 device is initialized twice, with the second initialization overwriting the first. It would be better to only initialize the device once, and pass the use_pulseio argument in the first initialization.
The code catches any Exception that might be thrown in the try block, which is generally not a good practice. It would be better to only catch specific exceptions that you expect to be thrown, such as RuntimeError which is raised when there is an error reading the sensor.
The continue statement in the except block will cause the loop to skip the rest of the current iteration and continue to the next one. This means that the time.sleep(10.0) line will not be executed, which could cause the loop to run too frequently. Instead, you might want to move the time.sleep(10.0) line to the bottom of the loop, outside of the try-except block.
That being said, the code should be functional as it is, assuming the necessary libraries are installed and the DHT22 sensor is properly connected. If you are experiencing any issues with the code, please provide more information about the problem you are encountering and I will do my best to help.
It doesn't work with negative temperature
If the temperature being read by the DHT22 sensor is negative (below 0°C), it is possible that the sensor is not correctly configured or is not functioning correctly. Here are a few things you can try to troubleshoot the issue:
Make sure the DHT22 sensor is properly connected to the microcontroller. Check the wiring diagram provided by the manufacturer to ensure that the sensor is connected correctly.
Make sure you are using the correct type of DHT sensor. The DHT22 is designed to measure temperature in the range of -40°C to 80°C, so if you are expecting to measure temperatures outside of this range, you may need to use a different type of sensor.
Check the temperature and humidity values being returned by the DHT22 sensor. If the values seem unreasonable or are fluctuating wildly, there may be an issue with the sensor itself. You can try running the sensor outside of the loop and printing the values to the console to see if the values are stable.
Make sure the code is correctly reading the temperature and humidity values from the sensor. The temperature property of the DHT22 object returns the temperature in degrees Celsius, so you may need to convert the value to Fahrenheit if you are expecting the temperature to be in that unit.
If the sensor is still not working as expected, you may need to replace the sensor or check for any other hardware issues.
I hope this helps! If you have any further questions or need more assistance, please don't hesitate to ask.
Är ju inte helt dåliga tips.
Har du testat med en annan sensor om det är hårdvarufel?
