SkyViper V2450 GPS

Got hold of one of these SkyViper V2450 GPS a while back as a good friend of mine in the USA put me onto this quad because it uses arducopter firmware, and might be a way to cram this into a broken S6 I have lying about.

Really nice little quad considering the price and features, with only drawbacks are it uses brushed motors which will always wear out real quick and it use a very low quality 720 camera which from flight I done suffers really bad jello.

But apart from that works pretty well along with the remote it comes with.

Some teardown photos:-

The flight controller is based off the pixhawk racer hardware and is very compact with the rx for the control built on the pcb, so really nice size.

After a few flights of this until the brushed motors wore out and then onto getting this to work in a s6 shell with the original s6 motors.

 

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Another Winsgland S6 battery test

After rebuilding a S6 battery with the Hyperion G6 1400mah LiHV cells this is a test from 100% to auto landing at 0% using stock props.

To cut to the chase I got 7 mins 48 seconds of actual flying time.

Temps on the day were around 26C / 79F with little wind.

The S6 and the battery pack were taken outside and no warming of pack or craft prior to hover test.

I would expect maybe a tad longer flight times if flying around in forward flight.

But still a pretty good upgrade of getting more flight time and this G6 version of the hyperion cells seems to last better than the Hyperion G7 graphene pack I tried before.

I did also do a test with some Simtoo XT175 props, but although you can get even longer with those props, twice including my last test with these the props broke apart mid air.

Below photo of the one broken prop I did find after it hit the deck and you can see where it broke apart.

Otherwide those props definately provide longer flight times, but maybe not strong enough for the S6 sadly.

I do have other props on the way which might work, shall update when they arrived and I tested them.

In the meantime, below is the video of my test flight. Rather boring as just a hover and video recorded off screen on a iphone 6 and hence not very good quality, but for those that want to see the % drop of battery over those almost 8 mins.

Video of test flight:-

 

 

 

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Replacing worn out Wingsland S6 cells

Well I now have 2 S6 packs which are showing there age and much shorter flight times.

So time to replace the cells.

This time the cells I am using are Hyperion G6 1400Mah ones as I ordered the G7 pack I had before, but was sent a G6 one from Robotbirds in the UK

So this was the pack I received :-

A 4S pack, which means I have to carefully split the pack!

Balance of cells was around 3.8 per cell, but normally HV cells are around 3.87 per cell.

First off I charged the pack to storage which took 164mah to get the cells to 3.9 per cell which is what I would expect from HV cells at storage voltage.

 

Right now onto the tricky part!

First remove the blue shrink wrap.

and then the bit of plastic that goes around cells.

Then (CAREFULLY) cut the balance cables and remove from the pack.

Then what I did was to use a small grinder and cut the pcb like photo below

Also note cells are stuck together with very sticky tape and best way to seperate them is by using lighter fuel ,

squirt some down sides of cells and then after a min they will come apart much easier (AGAIN be careful, lighter fuel and lipos that can catch fire!!)

Then to make it easier after this I cut down the middle of solder where cells are to seperate the cells (Sorry I forgot to take photo of this)

But in photo below is where I cut which is marked in red.

Reason why I did it this way, was trying to unsolder the cells you need to apply too much heat. This is what I done before and I am concerned its damaging the cells, so if you are really carefull ginding and cutting is far less stressful on the cells, but you still have to be really careful not to slice through pack or short the cells with cutter.

Once all cells are loose you can unsolder what is left of the tabs and you should end up with something like this:-

2 of the 4 cells now almost ready to go into the S6 battery case.

Next solder 2 of the cells together making sure you connect postive to minus correctly!!!!

And attach the balance wire to the battery pcb.

A really big issuse is the case is quite easy to get apart as its not plastic welded, but held together with really small and flimsy clips that will almost certainly break when you get case apart.

On the case below the clips broke a long time back as I was testing different cells and the case looks far worse for wear by now 😉

Cells and battery pcb back in case.

Yes I marked the cells after reading with meter so I got it right.

The postive and neagtive is marked on the S6 battery pcb as B+ and B- (Triple check you got this right or you will blow the ESC and dc convertor on the main Wingsland S6 board!!!!) I know this as I done it once! And as you cant buy the esc board its a write off, unless you want to replace every esc fet and dc convertor chip which I had to do once.

So you must check and check again that the voltage you have on the pcb is correct at around 7.6v at storage and the small balance wire should be reading 1 around 3.8v if at storage from new.

After that put it in charger to make sure it charges and if you got it wrong, blow the charger and not the s6 😉

 

Then charged it up and then on next post will give results.

WARNING!!!!

Only try this is you are experienced in soldering and lipo batteries, you will 100% void any wingsland warranty and also void any warranty on the lipo pack, and so for most people I would strongly advise against doing this , and to get legal stuff out of the way if you do this mod and anything catches fire or burns down, or you destroy your S6 or charger its down to you as you have been warned!!

 

Best solution is some third party lipo maker like GiFi power would make better batteries , they make them for the Dobby and so why not the Wingsland S6??? I am sure they would sell a lot if they made some!!

 

 

 

 

 

 

 

 

 

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Wingsland S6 Flash Light

Just got hold of one of these wingsland s6 Flash lights off Banggood

Clips on top of S6 and lines up with the data pins on top of the S6.

Quite neat that you can change the brightness settings in the app and also turn on strobe effect.

A drawback to all this is it will reduce the already short flight time of a S6 with the extra weight and what the light draws.

But apart from that a nice add on

Think out of all the clip on’s wingsland made for this, this one is the best.

The All-Around Obstacle Sensing & Avoidance module would have been a neat add on,

 

but Wingsland never released it and wont see anything now they given up on the S6.

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Updating a Wingsland S6 with problems.

After trying out a different S6 camera firmware, my quad started to have issues connecting and staying connected and to start a fresh again I thought it be a good idea to update a fresh.

And as I not wrote anything before about doing a update and it may? help others having strange issues with there Wingsland S6.

What you need:-

Usb cable from pc to micro usb type which plugs in the S6 next to the sd card.

A Windows pc

Wingsland S6 updater util

Camera firmware

 

First follow instructions in the Wingsland S6 updater util link above from what you will also get the file from at the bottom of the page.

Now after about a few mins the updater will be done and S6 will have stopped flashing, so power off S6 by removing the usb lead.

Then run Wingsland S6 app on phone and it will tell you of a firmware update to install the lastest firmware version (because version in the Wingsland updater is a older one), so do this next.

Then download the camera firmware file above and unzip it and place the Wingsland.bin file from it onto the SD card.

Then put battery in S6 and power on and wait for a few mins until its finnished installing the camera firmware.

Then power off the S6 and take out the SD and delete the Wingsland.bin file from sd card and put it back in the craft.

Then once S6 powered back on , go to the camera settings on the app on phone and reset the camera settings.

I would also reformat the SD to cover all bases (Make sure you saved your videos first)

Hopefully all this might have helped.

Although doing this still will not cure the fact that at times when I start app there is no video and have to exit app and back in a few times. This only seems to happen on my iphone6 and iphone 5, the app on android dont seem to have this issue and so assume this is another bug.

Happy flying!

 

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