To hook up a door controller in Rust to open automatically when you return to your base on your mini, you will need the following items:

Door Controller
Smart Switch or Smart Alarm
Wire Tool
Electricity Source (e.g., Solar Panels, Wind Turbine, or Battery)
RF Broadcaster
RF Receiver
Here's a step-by-step guide:

Setting Up the Door Controller
Place the Door Controller: Attach the door controller to the door you want to control. Make sure the door is locked with a code lock or key lock.
Pair the Door Controller with the Door: Look at the door controller and hold E, then select "Pair to door." It should display a confirmation message if successful.
Setting Up the RF Receiver
Place the RF Receiver: Place the RF Receiver near the door controller.
Set the RF Frequency: Look at the RF Receiver, hold E, and set the RF frequency to a unique number. Make a note of this frequency, as you will need to set the same frequency on the RF Broadcaster.
Wiring the Door Controller
Connect Power to the RF Receiver: Use the Wire Tool to connect an electricity source to the RF Receiver. For example, if you are using a small rechargeable battery, connect the output of the battery to the input of the RF Receiver.
Connect the RF Receiver to the Door Controller: Use the Wire Tool to connect the output of the RF Receiver to the input of the Door Controller.
Setting Up the RF Broadcaster
Place the RF Broadcaster on Your Mini: Place the RF Broadcaster on your mini copter.
Set the RF Frequency on the Broadcaster: Look at the RF Broadcaster, hold E, and set the RF frequency to the same number you set on the RF Receiver.
Using the Setup
Now, when you fly back to your base and get within range of the RF Receiver, the RF Broadcaster on your mini will send a signal to the RF Receiver, which will then activate the Door Controller to open the door automatically.

Testing the Setup
Test the Door Controller: Fly away from your base to get out of range, then fly back towards your base. As you approach, the door should open automatically.
Adjust Range and Frequency if Needed: If the door doesn't open, check the range of the RF Broadcaster and Receiver and ensure they are both on the same frequency.
This setup allows you to have an automatic door that opens when you return to your base, making it convenient and secure.