GPS Rescue mode in Betaflight is similar to “Return to Home”. When you lose video or radio signal, the quad is supposed to return to you using GPS.
How to Setup GPS Rescue Mode in Betaflight
Tag Archives: advanced
Mini Quad Crashed into the Ocean | Salt Water = Drone Killer
I was flying at this beautiful seaside spot a few days ago, but my quadcopter failsafe’d and fell into the water. This is a good case study and we can talk about what to do after getting the drone out of water.
Top Mounted Battery vs. Bottom Mounted on a Mini Quad
The location of the battery affects the performance and handling of your mini quad. The LiPo battery itself is a mass, in fact it’s so heavy it can change the centre of gravity. In this article we will discuss the benefits and downsides of mounting the LiPo on top and bottom of the frame.
Betaflight Feed-Forward (Previously “Setpoint Weight and Transition”)
This article explains what Feed-Forward is Setpoint Weight and Transition are, and how to tune it in Betaflight. “Derivative of error and measurement” are closely related to Setpoint weight / Feedforward, and they can give you very different flight characteristics.
Fix LiPo Batteries with Bad Cells
Lipo batteries degrade over time, sometimes this degradation results in dead cells. It seems to be a waste to throw the whole pack away because other cells might still be working. In this post we will show you how to make a working LiPo by combining the good cells from multiple damaged/defective batteries.
Fatshark 18650 Battery Case DIY Mod – Charge It Directly!
The Fatshark battery case is a convenient holder for 18650 cells. However it’s not designed for charging, and you have to take the 18650 batteries out of the case to charge them. It’s quite annoying so I decided to modify the case so that I can plug it straight into the charger for charging.
DIY Lost Model Alarm with Built-in Battery
Buzzer can help you locate your crashed drone, but typically it won’t work if the battery is disconnected in the crash. Here we will show you how to build a DIY lost model alarm with its own little built-in battery.
X-Lite Latency Testing (Sticks & OpenTX Delay)
During the latency testing on the Frsky X-Lite, we discovered some interesting results. There is delay in the gimbals, (how often the gimbal value is being updated), and additional delay caused by OpenTX’s sample averaging.
The Best BLHeli_32 Settings?
There are settings you can play with in BLHeli_32 to achieve better performance on your mini quad. In this article I want to share the settings in BLHeli_32 configurator that have given me the best result.
Mini Quad Motors: 2306 vs. 2207 Stator Size
The differences between 2306 and 2207 mini quad motors are often discussed. In this article I will share my understanding and experience to help you pick a suitable motor size for your next quadcopter build.
FPV Goggles Screen FOV Comparing Tool
We all know bigger FOV gives you “bigger screens”, but how much bigger? In this short post we are going to find out. I also made a handy tool to let you quickly compare the FOV between two sets of goggles side by side. It’s scary what a strong cup of coffee can do to you :D
Tips for Long Range FPV Flying with Mini Quad & Racing Drones
More and more top pilots are posting cinematically edited long range FPV videos of mountain dives, flying across rivers or sweeping over villages. The sense of exploration in these videos is truly amazing, and reminds me of what got me interested in FPV in the beginning, to explore!