Best Flight Controllers To Help Design Your Own Drones

By Vinay Minj

4020
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Drones can be made powerful, faster and affordable by choosing the best flight controllers that enhance the ESCs (Electronic Speed Controllers) and the various connected sensors such as gyro sensors and accelerometres.

Image credit: www.pixabay.com

Be it defence, meteorology or package delivery, unmanned aerial vehicles (UAVs), widely known as drones, are being increasingly adopted by various sectors. It is fascinating to watch them fly high in the sky (and record videos from above). But most of us resort to buying ready made drones without realising that it can be easily build at much lower cost.

If you are excited to begin building one on your own but are confused by the many flight controllers that are available in the market out there and which one to begin with, then read on to find some of the best that will suit your requirements.

CC3D Flight Controller

Powerful and affordable for miniquad copters and multi-rotor aircrafts, the CC3D is built on STM32 32-bit microcontroller. It has 3-axis gyro sensor and 3-axis accelerometre. Weighing 8 grams, it has a small form factor in the form board size that is 30mm x 17mm. It runs on the Open Pilot firmware.

Image credit: www.opwiki.readthedocs.io

KK2.1.5

The KK2.1.5 flight controller is built on Atmega324 PA 8-bit AVR RISC-based microcontroller. Along with having gyro sensor and accelerometre, the board has a LCD display screen. Input voltage ranges from 4.8V to 6 V, weighs 20 grams and has a board size of 50.5mm x 50.5mm.

Image credit: www.robu.in

Omnibus F4 Pro V3

This flight controller is based on STM32 F403 MCU. It has gyro sensor, accelerometre, barometre and a built-in current sensor. Input voltage is 5V and has board size of 35mm x 35mm.

Image credit: www.leetechbd.com

Pixhawk PX4

Initially designed as an open hardware project, the Pixhawk PX4 is built on STM32 F427 with 256KB RAM. It has gyro sensor, accelerometre and barometre. Input voltage is from 4.8V to 5.4V, weighs 15.8 grams and has dimensions of 44mm x 84mm.

Image credit: www.docs.px4.io

 

For building micro-drones, you can refer the following:

Diatone Mamba F722

It is based on STM32 F722 and comes with gyro sensor and accelerometre, but no barometre. Input voltage is from 8.4V to 25V. Weighs 3.9 grams and has a board size of 20mm x 20mm.

Image credit: www.getfpv.com

Matek F722

Also based on STM32 F722, the flight controller comes with gyrosensor and accelerometre, but no barometre. Input voltage is from 7.4V to 30V, weighs 5 grams and has board size of 20mm x 20mm.

Image credit: www.flyingtech.co.uk

SP Racing F3 Evo

The SP Racing F3 Evo is built on STM32 F303. Its operating voltage is 3.7V to 8.4V. It weighs 15 grams and has dimensions of 32mm x 22mm.

Image credit: www.robu.in

RaceFlight MillivoltOSD

The RaceFlight MillivoltOSD is based on the STM32 F405. The flight controller is based on FlightOne software and has an operating voltage of 7.4V to 24V. Weighs 3.3 grams and has dimensions of 20mm x 20mm.

Image credit: www.staticbg.com

Hobbywing XRotor Nano

Also built on the STM32 F405, the Hobbywing XRotor Nano comes with an in-built on-screen display. Operating voltage is from 7.4V to 14.8V. It weighs 3.3 grams and has dimensions of 32mm x 32mm.

Image credit: www.getfpv.com

 

All these flight controllers have a powerful combination of top-class processors with small form factor, which helps to enable a low-weight, robust design and thus maintain a constant speed.


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