Hey. I have some programming and hardware experience and I have been thinking about this idea for a while now! I would like to make a project for my house where I have multiple temperature sensors in different rooms in the house and maybe one temperature outside which would be able to send data to microcontroller. I could use raspberry pi with a display to show all temperature readings. However, my main concern is what is the best way to power up individual sensors in different rooms and what would be the most efficient way to send sensor data over the air to the microcontroller. Thank you for all the replies in advance..