adaptive-lighting VS ATC_MiThermometer

I use Home Assistant for doing most of what you're asking for. This integration works great for adjusting light level and temperature: https://github.com/basnijholt/adaptive-lighting.

My home has an ERV and I use a couple Shelly relays (one for power and the other to boost airflow) integrated into HA to modulate the amount of fresh air I bring in, currently based on indoor/outdoor temperature and humidity. I don't have an air quality sensor, but if I had one I could easily integrate that into my automations.

Philips Hue lub Ikea Tradfri spięte z home-assistant.io, do którego zainstalowany jest dodatek https://github.com/basnijholt/adaptive-lighting

Are you using any sort of home automation system (Google, Alexa, Siri, other) or just using the Kasa app? I use Home Assistant along with the Adaptive Lighting integration with my bulbs and LED strips, which works on circadian rhythm and does exactly what you're wanting to do.

My home has never felt this "smart" before. Every time my lights turns on I find the color and brightness to be perfect.

[1]: https://github.com/basnijholt/adaptive-lighting

If you're starting from scratch with a new build, I would recommend Home Assistant with the Adaptive Lighting Custom Component.

Personally, I use this Integration within my home automation hub. It took all of 5-10min to set up, didn't require any additional hardware, works with all of my existing bulbs and strips with CT and/or brightness control, updates my lights every 90s, and slowly transitions to the next setting over a 45s period. Any time I make manual adjustments to any light, it holds that setting until I turn the light off.

Probably not the solution you're looking for, but I use Adaptive Lighting with Home Assistant. Doing it at the hub level (instead of the bulb or app level) means you aren't restricted to a specific brand/protocol. As long as the light has dimming and CT controls, it just works. (I use it with several different LED strips and several different smart bulbs.)

I think the best method to do this is with this home assistant integration: https://github.com/basnijholt/adaptive-lighting

Any CCT capable light will be able to achieve this, but the level of automation will depend on the app/hub you pair them with. Inovelli, Ikea, and Philips have some good options, but will all require an appropriate Zwave/Zigbee hub. Personally, I run Home Assistant in conjunction with the Adaptive Lighting Add-On to handle the CT automations.

HACS Adaptive lighting

I use ESPHome to enhance existing appliances (add smart functionality to an existing aircon for example) so generally the ESP board ends up within the appliance itself with nothing visible on the outside.

For things that need to be stand-alone I'd first check if there's an existing off-the-shelf option first which generally would be more cost-effective to buy and look better than anything I could make myself.

For temp sensors specifically I generally just go with whatever off-the-shelf stuff is supported by this firmware: https://github.com/pvvx/ATC_MiThermometer

Home Assistant, with a bunch of Xiaomi BLE LYWSD03MMC sensors, running custom firmware: https://github.com/pvvx/ATC_MiThermometer

I have a handful of Xiaomi LYWSD03MMC thermometers running pvxx's firmware, and a SCD4x CO2 Sensor.

Personally, I flashed them with this firmware so I could customize the broadcast interval and use them with Home Assistant without needing a proprietary hub.

If BLE is an option for you, consider a Xiaomi Mijia Hygrometer flashed (wirelessly via Chrome) with this firmware: https://github.com/pvvx/ATC_MiThermometer

Xaomi Mija Hygrometers, wirelessly flashed with this firmware, and Home Assistant to expose them in HomeKit. Local LCD display, roughly 2yr battery life, and available from $3-5.

I've been using a Raspberry Pi as a home server, and it's been holding up amazingly well, given everything I've thrown at it:

- The excellent Home Assistant, for unifying across Homekit and Google Home and tracking historical temperatures and a couple of automations. The RPi has Bluetooth built in, so I can capture the data from a few Bluetooth thermometer/hygrometers running custom firmware (https://github.com/pvvx/ATC_MiThermometer) without a 802.15.4 bridge or similar.

- An AirPlay to Google Cast bridge, mainly for listening to Overcast or the occasional YouTube video on Google speakers

- A SMB server, for file storage and potential Time Machine backups (but I don't currently have enough storage, and locally attached SSDs are just hard to beat in terms of performance)

- A DLNA server, for watching photos and videos on my TV

- Tailscale, for the occasional use of my home connection as a VPN when traveling (really glad to be having symmetric fiber for this!)

- Caddy, as a frontend for everything web facing, to benefit from its excellent Let's Encrypt integration for automatic certificate requests and renewals

Most of this is running in Docker containers and configured via Ansible, so that if the micrSD card burns out, I can just flash a new one with an empty image and recover from there.