Quadcopters are becoming more widespread because they are incredibly stable, fast and fun to fly. Newer technologies have allowed development of smaller and cheaper quads with vast capabilities. While a quadcopter can provide endless fun of flying an RC toy with cameras, these are also popular for taking professional aerial photos or videos, surveillance and 3D terrain mapping. They also help build FPV (first person view) systems that allow you to fly as if you are sitting inside the craft like a pilot.
If you are curious to know how to design a Quadcopter, mentioned below are some industry-standard reference designs on Quadropters including necessary documentation like hardware and software design files, user guides, schematics, and more.
Quadcopter For Ground/Air/Water UAV’s
Here is a quadcopter drone which is a very popular design for ground, air and water unmanned aerial vehicles (UAV) as well as motor control applications. It consists of a flight controller and four electronic speed controllers (ESCs), one for each motor. The flight controller is equipped with a radio to receive flight commands provided by the pilot and the inertial measurement unit (IMU). The IMU provides information (such as velocity and orientation) that are necessary for autonomous stabilization of the vehicle, using the internal accelerometer, gyroscope, and sometimes the magnetometer and GPS receiver. This design is based on a single Kinetis KV4x or Kinetis KV5x MCU which helps to drive four BLDC motors of ESC. More on this Reference Design