I am trying to make more complicated temperature project. Okay, even now can't read DHT11 values yet but I am trying and planning more. I want to use one NodeMcu board as main or we can say brain of the system. Then I want to put a couple of devices (temp device) to other rooms of the house. These devices should send temperature to the main device and the main device should send all of them to the server. The main device is working with a wall plug. But temp devices should work with the battery. Do you have any recommendation about hardware, battery management or software?
Or do you recommend forget these things and make every temp device has NodeMcu board and send by itself? But that means forget the project too.