Hi @wackowizzard. Welcome to the MySensors site. Take a look at some of the projects on OpenHardware.io https://www.openhardware.io/explore It will give you many examples of different sensor projects. Most projects just do one thing. Temperature and Humidity or motion are the most common. A few do use many of the sensors you want. See Berk's https://www.openhardware.io/view/8259/Air-quality-and-weather-forecast-sensor for example. The MySensors framework is supported by Home Assistant. Battery or wire power will depend mostly on the power consumption of you sensors. Many can be quite low power and run for years on batteries. This is common topic of discussion in the forums. If you read through the "Getting Started" and "Build" sections on the MySensors site, you will get a lot of information and ideas about how to build the sensor you described.