Home Assistant: Making My Plants Talk with IoT Sensors and a Python Script

Living in an urban city without a garden, I have been exercising my green thumb by accumulating more and more houseplants. I have them tucked away in every light-filled corner, hanging from every rafter in my tall ceilings. Which is a problem, because I have to get a ladder out to water most of them!

Using some cheap plant soil sensors and a simple Python script, I will have Home Assistant check all of my plants and make a list of which need my attention. Then when more than a few need to be watered, I can be notified or have the voice assistant give me an update.

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Config: Setting up the Xiaomi Mi Robot Vacuum in Home Assistant

I have a dog who sheds like crazy, and the only thing that keeps the dust bunnies from overrunning me is a robot vacuum. My aging Neato Botvac, after fulfilling several years of hard labor, ate it’s 3rd expensive replacement battery recently. This was obviously a great excuse to get a new one that works with Home Assistant.

I went with the Xiaomi Mi Robot.

After getting paired with the app, teaching the robot English, and sending it on it’s way around the house to do it’s thing, I realized that the process of getting it paired with Home Assistant was not going to be straightforward.

For anyone else who runs into trouble, here’s how I got it working.

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My Smart Home: Hardware List

An ongoing list of all the hardware I’ve gradually acquired. Links are to Amazon, but if you are patient most things can be imported from China for much cheaper.

Want to get started in home automation for cheap? Check out my $200 DIY Smart Home Shopping List to get started with a great foundation of hardware for use with Home Assistant. Control devices over WiFi, Bluetooth, infrared, Z-Wave, Zigbee, RF, and build some basic sensors – all for less than most kits from one proprietary vendor!

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