HobbyKing Quanum V2 Pro Goggles

This is a build guide and review of the HobbyKing Quanum V2 Pro Goggles.

Here they are assembled with my DYS X160:


Overall, these goggles offer great performance at a great price. They are light, easy to assemble and should work fine with glasses. If you're looking for a first (or second or third) pair of goggles, this is a great option.

As for the display, I like the single monitor style a bit better than the two monitor goggles (like Fatsharks) since the single monitor gives a...

Drone Building 101 with the HobbyKing FPV Starter Setup

At Maker Faire Bay Area 2016, David, Jack, Huned and I built a drone with the help of some kids. This is the story of that drone.

Let's start with the results. Here is some video of the drone flying with the BetaFlight 3.0 firmware.

And chasing the drone with the x200


Here are all the parts we used:

KingKong 260 FPV Frame Set (Pair) w/ props, $17.69

Rctimer BeeRotor u210 mini quad build, setup and review

This is a build and setup guide for the new BeeRotor u210.

Here's some footage from the maiden flight:


Everything you need except the transmitter and receiver, battery and charger is included in the kit! You'll also want some good goggles if you're just getting started.

This basic setup is great for a beginner:

FlySky FS-i6 with iA6B Receiver, $53

AirBot Flip32 F3 AIO Lite and Typhoon 4-in-1 ESC

This article is a review and guide for the following components:


Airbot F3AIO-LITE F3 flight controller with 16MB of flash.

Airbot Typhoon 4x20A 4in1 ESC which is 4 littlebee ESCs on a single 35x35mm PCB.

RTFQ Power Distribution Board which works in tadem with the flight controller to provide power along with voltage and current sensing.


The key differentiator between the BeeRotorF3 F3AIO-LITE is the 16MB of flash and the full size, 2.54mm pin headers, as opposed...

DYS X160 v3

This is a review and setup guide for the DYS x160 v3 miniquad.


This is a fun little miniquad and at 138g without a battery, no registration (in the USA) is required to fly. The quad itself is great value at a little over $100 on It is quick and nimble on BetaFlight 2.7 and with the un-changeable amount of camera up-tilt, it might be a little much for a beginner, but for a second quadcopter, this thing is fun! Compared to the BeeRotor 160, it is a little bit lighter, fully...

HobbyKing Graphene and Bolt High Voltage LiPo Battery Analysis

Hobbyking sent me some 3s 2200mah Graphene and 4s 1300mah Turnigy Bolt batteries for testing and review. I flew them along with some of my other batteries and compared the data. Here's what I found.

Batteries Tested

Shown in the photo above from left to right, these are the batteries I tested:

1x Lion Power 1500mah 40c 3S $13.59

2x TBC 2200mah 25c 3S ~$8.20

2x Turnigy Graphene 2200mAh 3S 45C LiPo Pack w/ XT60 $23.94

4x Turnigy Bolt 1300mAh 4S 15.2V 65~130C High Voltage Lipoly Pack (LiHV...

BetaFlight in-flight PID tuning

I've setup my 9x for in-flight-adjustments, allowing me to tune my PIDs while flying. I have OpenTX installed on my 9x.

Since my only 3 position switch is already in use, I've setup the dial like a 3 position switch. Moving the dial will switch between adjusting P, I and D. I only adjust the roll and pitch axis, yaw will need to be tuned separately.

I've mixed the TRN and GEAR switch in my radio so that when the GEAR switch is down, flipping on TRN send the channel high and when GEAR is up...

Rctimer BR-X200 Mini-quad Build, Setup and Review

This is a review, build and setup guide for the Rctimer Beerotor X200.

Here is some chase video filmed with the x200 on stock PIDs, BetaFlight 3.0

All up weight is 323g for a power to weight ratio of approximately 10:1.


Here's everything you'll need for the quadcopter:

We've got:

x200 Frame, $29.99
4x XDrone 20a ESCs, $43.96

Victory230 FPV Mini-quad Setup and Review

This is a setup guide and review of the Rctimer Victor230 FPV mini-quad.


If you're thinking about getting a Vortex Pro 250, think again. The Victory230 will out-fly and out-perform the Vortex any day of the week. Though it's prop-span is 20mm smaller, the Victory230 has bigger motors, ESCs that handle more current, an open source flight control board and OSD that can be easily upgraded. Plus, it's almost half the cost. This is amazing.

The Victory230 includes everything you...

FrSky RX SBUS and Frsky DJT Module

This is a review, setup guide and comparison of the two Airwolf DIY FrSKY Receivers (F801 and F802), both paired with the DJT Transmitter module in my 9x. This article also takes a look at the Naked X4R receiver from FrSky.

Note that the DJT module will not bind with the X4R since it uses the newer D16 mode. You'll need to get the XJT module or a Taranis, both of which support D8 and D16 modes, to bind with the X4R. See the compatibility section for details.

Update Aug, 2016: There is a new...

Rctimer BeerotorF3 Flight Controller

This is a review and setup guide for the new BeerotorF3 (BRF3) all-in-one (AIO) flight controller from Rctimer.


Update Aug, 2016: The new Omnibus flight controller is out. If you're looking for a high performance flight controller with a directly integrated OSD, this is the board for you.

You probably know why having an OSD that displays current consumption is so important, but I'll reiterate it anyway. A current sensor measures the exact amount of battery that has been used and...

Flying Sony NEX Micro 4/3rds Camera

So, you want a flying camera to take videos of you and your awesome friends doing amazing things. You've thought about getting one of those pre-built drones by DJI or 3D Robotics, but those are expensive little drones that only carry weak little cameras.

Building a giant rig to carry your full frame DSLR isn't ideal either, because it will need to be huge and therefore less portable.

So what should we do? Build something to carry our NEX-5T micro 4/3rds camera! This camera weighs 397g with the...

Q600 Quadcopter

In this review, build and setup guide we will walk through building and configuring the Q600 quadcopter from Rctimer.

Later, I'll mount an ASP Gimbal on the Q600 to carry my NEX-5T.


For the full review, checkout the Flying Sony NEX Micro 4/3rds Camera article.

Overall, the build quality is great. The integrated PCB / PDB body makes assembly a breeze.

The 30mm OD carbon tubes are super robust. The landing gear is tall enough to accommodate the ASP gimbal and a NEX-5T.

Since there...

ASP micro 4/3rds Gimbal and SimpleBGC 32-bit Gimbal Controller

This is a detailed build and setup guide for the Rctimer ASP 3-Axis Brushless Gimbal.

Here are the parts I used:

Rctimer simplebgc 3 Axis Nex-GH5 Brushless Gimbal - $200
AlexMos SimpleBGC 32-bit Brushless Gimbal Controller w/ Plastic case - $171

Total Cost: $371

I'll be mounting this on a Q600 quad-copter.


Here's everything...

PixHawk Flashing and Setup

This guide will show you how to install, flash and configure the PixHawk. I'll be using Rctimer's distribution of the PixHawk, which is called the FixHawk. From now on, I'll use these terms interchangeably. The FixHawk will be installed and configured in an Rctimer Q600 quad-copter, which I highly recommend if you're looking for an awesome frame, but these directions should apply to any quad-copter installation and configuration.


The PixHawk hardware and software is an open source...

BlHeli ESCs

This guide will show you how to flash BlHeli and the BlHeli bootloader so they can be programed via CleanFlight or BetaFlight pass through programming in BlHeli Suite.

What is BlHeli?

BlHeli is firmware that runs on some Atmel and SiLabs ESCs, supports OneShot 125, and is designed for multi-copter performance.

BlHeli Suite is the companion application (windows only) that allows one to flash and configure BlHeli ESCs.

The BlHeli Bootloader is part of the BlHeli firmware that is installed on...

BlHeli ESC Upgrading and Configuration

This guide will show you how to configure your ESCs with the optimal settings for use with OneShot125, CleanFlight or BetaFlight.

Download the latest BlHeli Suite from here:


It is possible to connect to your ESCs in a variety of ways. I think the easiest way to connect, if you've already identified the microprocessor and flashed BlHeli (with the bootloader) is pass-through programming via CleanFlight or BetaFlight.

If you don't have the bootloader installed...

BlHeli CleanFlight ESC Calibration

This quick guide will explain how to calibrate your ESCs so they throttle up evenly.

Why Calibrate ESCs?

Joshua Bardwell explains in these two videos why this is important



How to Calibrate

The general idea is to "program" the ESCs via the flight controller to tell them what the minimum and maximum pulse width is that they should be expecting.

Programming by TX

This will only work if you left the Programming by TX option turned on in BlHeli. If you turned this off, you'll...