Will a Microcontroller with Web server help gather data?

Hello, I am in need of suggestions on how to use the data to control devices in program coding. The data can be written in spreadsheet, from the web, or all in coding. The devices are Peltier TEC, Ultrasonic fogger, and a light source for enclosed terrarium. This terrarium will replicate another temperate zone for it's daylight, temperature, and humidity throughout the year. Hope this makes sense. thanks

ps: if taken data from the web, a web server embedded microcontroller can be used right?

I'd imagine that as long as you store your data in progmem, you could do this without any external data source.