kiwx
Junior Member
Posts: 65
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Post by kiwx on Mar 20, 2019 17:12:48 GMT -8
I am getting a few rain events a day. Not many, but over 24 hrs, maybe .03in with not a cloud in the sky. I suppose it could be something like wind or bugs, but I imagine its issues with that a pull up resistor would solve. Do you have instructions or photos of a good R value and location on the OutWeatherBoard to add one?
Thanks
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Post by SDL on Mar 23, 2019 6:57:47 GMT -8
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Post by gb0101010101 on Mar 24, 2019 18:42:22 GMT -8
Could this be fixed by adding a ferret on the drip bucket wire without soldering fixes?
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Post by SDL on Mar 25, 2019 8:53:05 GMT -8
Maybe depending on the noise. A ferret will remove high frequency noise but it will also slow down the transitions. Might as well try it!
BP
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Post by fleabeard on Dec 27, 2021 16:56:48 GMT -8
Resurrecting an old thread. I’ve got the latest version of the board and there still appears to be a problem with noise rejection. Before I go soldering on a brand new board, what’s the recommended resistance and connection points for the pull-up?
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Post by SDL on Dec 28, 2021 10:57:59 GMT -8
I would try starting with an additional 10KOhm resistor. That gives you 5K Ohms (with the 10K already on the board).
If that doesn't work, try another (that gives you 3.3KOhms).
How do you know it is a problem with noise rejection? What are the symptoms?
BP
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Post by fleabeard on Dec 29, 2021 10:32:00 GMT -8
I would try starting with an additional 10KOhm resistor. That gives you 5K Ohms (with the 10K already on the board). If that doesn't work, try another (that gives you 3.3KOhms). How do you know it is a problem with noise rejection? What are the symptoms? BP The rain reading increments with no rain. I know that the bucket and mount are good as they've been working with another setup for a year or so. I found some nice shielded cables that I had laying around. Going to try that before adding a resistor. |
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Post by fleabeard on Dec 30, 2021 7:51:19 GMT -8
So far it looks like the shielded RJ11 cables have fixed it.
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