Duplicate readings

Jason
Senior Member

Posts: 482
Raspberry Pi: Yes

Duplicate readings Dec 14, 2020 4:15:11 GMT -8

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Post by Jason on Dec 14, 2020 4:15:11 GMT -8

My rack has almost completed 24 hours of operation. In looking at the data collected in PostgreSQL, I noticed that I'm seeing duplicate timestamps for the readings recorded. Right now I'm running the readWeatherSensors.py script in an interactive terminal on the RPi that has the connected antenna. I can also see the duplicated readings in the interactive terminal. Is this expected behavior?

Thanks,

Jason

SDL Global Moderator Posts: 5,655 Raspberry Pi: Yes Other Device: PC, arduino, beagleBone	Duplicate readings Dec 14, 2020 9:50:10 GMT -8 Jason likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by SDL on Dec 14, 2020 9:50:10 GMT -8 Yes, that is correct. What is happening is that the WeatherRack2 433Mhz channel sends out each sample twice, one right after the other. Our SDR program on the Pi is quick enough to pick up both. BP

Jason Senior Member Posts: 482 Raspberry Pi: Yes	Duplicate readings Dec 14, 2020 15:18:32 GMT -8 via mobile SDL likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Jason on Dec 14, 2020 15:18:32 GMT -8 Thanks for the info! I’ll add a unique constraint to the database. Jason

Post by Jason on Dec 14, 2020 4:15:11 GMT -8

Post by SDL on Dec 14, 2020 9:50:10 GMT -8

Post by Jason on Dec 14, 2020 15:18:32 GMT -8

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