Zigbee open/close switch Rain sensor

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1

Hi All,
I want to build a rain sensor that will open or close the rain sensor circuit for my sprinkler controller. I have a rain sensor now that is "OK" but I'd like to also be able to switch if off based o upcoming rain storms. It should be battery powered and will have very little current go through it. Any ideas? Amazon is my best friend but damned if I can find something...

TIA - Bill

2

I built this rain gauge and it works quite well. The parts are available on Amazon. I did have an issue keeping the aqara sensor contacted to HE (on my case I think it was distance and obstacles) so I bought a cheap Aqara m100 hub to pair it too and use the M100 as a matter bridge to HE.

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3

This is a more up to date link for the Misol rain gauge component:
https://www.aliexpress.us/item/3256806271093007.html?spm=a2g0o.productlist.main.1.4067430f0VfHxK&algo_pvid=9e489e3d-4559-4586-9559-02238eda9ef8&algo_exp_id=9e489e3d-4559-4586-9559-02238eda9ef8-0&pdp_ext_f={"order"%3A"525"%2C"eval"%3A"1"%2C"fromPage"%3A"search"}&pdp_npi=6%40dis!USD!15.84!11.88!!!15.84!11.88!%4021032f3717794912950067791ed277!12000037267538519!sea!US!2302064283!X!1!0!n_tag%3A-29919%3Bd%3Aee4d8a86%3Bm03_new_user%3A-29895&curPageLogUid=1hE31KwnV6bM&utparam-url=scene%3Asearch|query_from%3A|x_object_id%3A1005006457407759|_p_origin_prod%3A

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4

Here is a very nice and extremely sensitive liquid sensor, available from Amazon: EPTTECH FS-IR1902D PNP-NO Optical Infrared Water Oil Fuel Fluid Diesel Liquid Level Sensor Switch 5 to 24VDC,Pack of 3: Amazon.com: Industrial & Scientific
But it can't be battery powered.

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5

Says it's currently unavailable...

6

Ops. But there are many similar sensors. If you want one search for the "optical level sensor" or so. Here is one multi-level sensor which is in stock: CQRobot Contact Multi-Point Photoelectric Liquid Level Sensor Compatible with Arduino and Raspberry Pi. for Automatic Irrigation Systems, Aquariums, Plants, in The Garden, in Agriculture etc.: Amazon.com: Industrial & Scientific
The output is "frequency" but Hubduino/ESP32 can handle it nicely.

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7

I bought mine from Amazon. I didn't use the ali links