Phantom 4 Advanced

Drone Users Anonymous - Feeding the drone addiction

Just two days ago I bought myself Phantom 4 Advanced. I debated within myself whether I needed all the features of Phantom 4 Pro and decided that the extra pair of anti collision sensors plus the ability to use 5.8Ghz spectrum wasn’t worth it. I noticed in all the screenshot from Phantom 4 Pro that everyone still uses 2.4GHz. 5.8GHz is designed to be used in built up areas. Due to the fact that the whole area where I live use the same ISP, which provides 5.8Ghz routers as standard it wouldn’t have helped me. Out in the open you would still want to use 2.4GHz as it provides a superior range. In the end the deciding factor was the deal that I managed to get on eBay – I got a brand new Phantom 4 Advanced for a mere £700. How and why would someone want to sell a…

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Got up at 3am yesterday to take the new drone for a spin. Went to a lake, canal, mountain drawing, windmill and a hill.

Had a really close call first thing in the morning when the drone went into the brunches of a tree. No way did I think it would be able to survive that and I thought it would plummet into the canal under the tree. To my surprise the drone came unscathed! No propeller damage, just dirt from the tree. Phew! Great job DJI!

Again the collision avoidance just made things worse! It is now permanently turned off.

The parabolic reflectors seem to decrease the range rather than increase it, so they are going to the bin.

Positives: managed to clock about 2 hours of flight. Phantom 4 Advanced seems to get along very well with Phantom 4 Ver 2 propellers and I’m averaging 29-30 minutes of flight time with 10% to spear!

Got a lot of great footage, which needs to be cut, edited, colour graded etc.

Some photos from yesterday:


Still can’t believe how great the camera on the drone is. 1 inch sensor is definitely worth it. The UHD footage looks unbelievable on 4K monitor!

New drone video

Drone Users Anonymous - Feeding the drone addiction

Some [censored] has managed to land a brand new Range Rover in the middle of the roundabout. As it hit the barrier which essentially acted as a ramp, it took off and flew for good a 5-7 metres before smashing to the ground. I obviously had to investigate and flew over with my Phantom to the site of the accident.

What speed the driver of the Range Rover must have been doing to make a such a big jump?

Anyway, here is the video

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Drone Users Anonymous - Feeding the drone addiction

I found a document online intended to instruct police officers on how to deal with drone offenders (pretty much of all the drone users). Here is the list of few interesting extracts:

The ownership and use of drones are not of themselves unlawful but in certain circumstances, their use may contravene air safety legislation or other statutes, commonly used to manage other types of offending. The intention of this guidance is to address the negligent, reckless or malicious use of this technology.

It is not the intention of the Police Service to criminalise innocent misuse and the criminal justice system provides options for non-recordable disposal. However, some innocent misuse might also be reckless and therefore Appendix Two to the SOP provides a gravity factor matrix that users of this SOP may use to help them in decision making.

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DJI Phantom 3

I got a DJI Phantom 3 Standard as a present for my 36th and so far I’m more than impressed with the purchase. The drone flies like a rocket has a very good range and beyond excellent gimbal stabilisation. No matter how much I tried to thrash it, the video is perfectly stabilised.

The safety features are even more impressive –  if it happens that you lose the connection to the drone it will automatically land itself where it took off, so you really need to try hard to lose it.

You can install Litchi software on the phone and then use their website to create a flight mission, where you specify the altitude, speed, direction of the drone and the cameraLitchi

Here some sample footage I have taken using waypoint navigation described above.


Efficient linked lists in .NET

Exercises in .NET with Andras Nemes

Sometimes you need a collection that’s modified a lot: you insert, update and remove items. A List of T is then inefficient as it needs to constantly rearrange all other items. The LinkedList class might be a better candidate.

A linked list is a doubly-linked list. Each item has a Next and Previous pointer to look at which element comes right before and after a particular object in the list. A linked list is very efficient at inserting and deleting items in particular.

Initialisation:

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Line Saving Code Tricks – C#

Stuart's Pixel Games

Introduction

Reducing lines of code can make your work more readable, making it easier for you and for others to read. More lines means more mental gymnastics to decipher which part of code does what. I want to go over some tips and tricks that helpd me.

This is a guide I’ll update periodically if I discover new line saving tricks. If you know one that I haven’t put in, post a comment below to let me know and it may end up in the guide!

Smart Booleans

A real line saving trick is being smart with booleans. Below is a typical scenario you might have with turning off an objects animator once a counter has finished counting down.

void Update()
{
    counter--;
    
    if(counter > 0)
    {
        animator.enabled = true;
    }
    else  …

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ErazerBrecht's Blog

Hello,

UPDATE 13/10/2015/
I made another post about MVVM and EntityFramework. After reading this, you should really check that one out!
It’s really worth it to use MVVM 🙂
Link to another post: Click Here

I’ll explain the basics to get SQLite working with EntityFramework 6. It’s a straight forwarded tutorial / explanation. I will not tell you everything about EF (there are a lot of tuturials on the web). Instead I’ll show you the most basic example to get EF working with SQLite, after all it wasn’t that easy!

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