How I will build my own DIY smart home sensor Part 1 - (Arduino Uno Programming for Beginners)

How I will build my own DIY smart home sensor Part 1 - (Arduino Uno Programming for Beginners)
In this video, I'll guide you through the creation of a smart home sensor system to be mounted on the ceiling in every room of our house.
Intro: While there are many smart home solutions on the market, I opted for a fully open-source, DIY approach to maintain complete control over our home and ensure I can replace components if they break. The core of our home assistant system is an MQTT message broker, which tracks all states in the house. Currently, I control the house with wall switches and a web browser connected to a local instance of Home Assistant. However, I aim to make the house smarter.
Sensor Details: I'll demonstrate how to install various sensors, including:
Temperature and humidity sensors for optimizing the heating system.
CO2 sensors for optimizing air ventilation.
Motion sensors for automatic lighting.
IR receiver and transmitter for remote control capabilities.
Brightness sensors to manage lighting needs.
Noise sensors for clap-activated lights.
Bluetooth for controlling specific devices.
Optional IR matrix sensors for presence detection.
Optional RF receiver for supporting inexpensive RF buttons.
Join me as I enhance our home with these smart sensors, combining required smoke detectors with advanced monitoring and control features.

[@Volker-Dirr]

Nice. Maybe also simple switches, to check if a door or window is still open. Maybe a ultra sonic sensor to measure the distance (It just flashed my mind, because it is added in many Arduino kits.) Maybe use it to measure the amount of something (I have not good idea yet, maybe if there is still enough water in a rain barrel). Maybe a sensor to measure if you need to water your plants.

[@playduino]

Thank you for the feedback :) I think I forgot to mention that I will mount this sensor to the ceiling in every room :) but simple switches are a very good idea. I think I will add one multi-purpose button and one reset button, just in case

[@dbme6]

What about using mmWave sensors? I've not played with them but they seem to have some good utility. I think it would also be good to leave access to a couple of pins for optional future add-ons in case you find a need for an additional specific use case. You could probably use ESP Home for this project as well, but that defeats the point of teaching a coding project I suppose 🤷‍♂️ Maybe make both versions for fun 🤔

[@playduino]

thanks for your thoughts! mmWave are very interresting, however I have to admit I would not feel comfortable knowing that these sensors constantly radiate 80GHz in every room 24/7. ESPHome looks like it would fit this project perfectly. With as many sensors as I would like to integrate, ESP32 might be a good choice (instead of using ATmegas). If I decide to pick ESP32, I might use POE to power everything and use ethernet for communication. I could still use Arduino IDE instead of ESPHome for teaching 🤔