# Basic Assembly
A typical autopilot "minimal" system running PX4 consists of a flight controller connected to a power system, GPS, external compass (optional), radio control system (optional) and/or telemetry radio system (optional).
This section contains topics that explain how to assemble such a system for different flight controllers.
Quickstart guides are only provided for a few controllers. Other controllers will have similar connections. Additional information may be available in flight controllers pages or in manufacturer documentation.