Product Review: The KK2.1 Flight Controller

Product Review: The KK2.1 Flight Controller

Are you a beginner multirotor pilot? Are you looking for a flight controller that will let you get your multirotor up and flying quickly, without days of programming and calibration? Well then the KK2.1 flight controller from HobbyKing is a great option. While it...
KK2.1 Flight Controller Firmware Update Tutorial

KK2.1 Flight Controller Firmware Update Tutorial

Introduction When you place an order for a KK2.1 flight control board somebody goes into a HobbyKing warehouse somewhere, finds a KK2.1 on a shelf, puts it in a box, and sends it to you. The problem is, like most electronic devices, the software installed on the KK2.1...
Types of Multirotor

Types of Multirotor

As I write this, I am embarking on building my second multirotor. When I first started learning about multirotors, I, like many beginner multirotor pilots, focused on quadcopters, which is just one of many types of multirotor. I built my very own SK450 Dead Cat...
Quadcopter Maths

Quadcopter Maths

As discussed in the previous guide, a multirotor flight controller is able to ascertain the position and orientation of the craft based on data from its onboard sensors. In order to make the multirotor change its position and/or orientation, the flight controller...
Maximizing Multirotor Battery Life

Maximizing Multirotor Battery Life

Battery life is perhaps the greatest limitation for multirotors. Even with a very large, heavy, and expensive high-capacity battery, most multirotor aircraft will struggle to get ten minutes of flight time. Now, even five minutes of flight time seems much longer when...
Maximizing Multirotor Video Quality

Maximizing Multirotor Video Quality

If you are at all interested in doing aerial videography (and it is a great hobby that I would certainly encourage you to try) your biggest challenge is going to be optimizing the quality of your videos. Maximizing multirotor video quality is synonymous with...