Soil moisture sensor that works with hass on raspi

Hardware
1

I’m looking for a moisture sensor that works with my raspberry pi running home assistant for a plant automation project I’m working on. Does anyone have any suggestions and how I would integrate them so I can automate watering?

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Hi there, You can look into the below project. You can configure mqtt with this so it would be easy to integrate into HA.

If you want to use esphome please have a look at

3

I am using this:

Its a Capacitive sensors, so it will not pollute the soil and selfdestruct (#207 Why most Arduino Soil Moisture Sensors suck (incl. solution) - YouTube)

It comes with the plast case and a battery, but I have had to cut a hole for the USB-C charging plug, so I can charge it without disassembling it.
I have a USB-C hub with 5 ports and 5x2m cables, so I can charge plant sensors next to each other at the same time.
I measure 4 times a day and the sensor is set up with a static IP to minimize network traffic, which give around 2 months of batteri time.
I could just leave the USB-C hub plugged in a I would have power on at all times, if that is wanted.

4

Does this work with Home Assistant running on a raspberry pi?

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If you don’t mind buying an ESP32 as an interface device then the Xiaomi Flower sensors are a perfect device for what you want to do.

1 Like
6

Sorry monranrar. I did not see a notice about your post.

The sensor can work in several way, but you need to program it. ESPHome might be a solution too, since it is a ESP32.
There are code examples for a HTTP Post reporting, which I changed to MQTT reporting, which is really simple.
I am looking into changing it again to pure ESP-Now (no WIFI fallback), since that would require way less power and up the battery time alot.