Posted by Jack Crossfire | Today @ 09:24 PM | 607 Views
Face tracker 1 (8 min 14 sec)



The decision was made to transfer to using a face tracker instead of manually pointing the pole cam. Manual pointing would override the face tracker if the remote control was powered on, but it was expected to disappear. The lion kingdom found itself running more often without powering the servo, since carrying around the 2nd paw controller was a hassle. It was manely used for pointing the camera at the lion instead of viewing anything else. The most desirable shots were tracking the lion during a turn, but this wasn't possible with manual pointing.

The ideal tracker would run a pose tracker & face tracker. This can run reasonably well on a 4GB GPU. The face tracker would pick out the lion & the pose tracker would track any visible body part when the face wasn't visible. Unfortunately, the embedded GPUs of the past were all discontinued so the lion kingdom settled on just the opencv face tracker on a raspberry pi 4B.

Opencv face tracking is split into face detection & face recognition. Face recognition goes at 3fps while face detection goes at 7fps, so just the largest face is tracked. There is an optical flow step which keeps tracking the same face for a short time if a larger face appears. Optical flow works better at higher frame rates, but the best the pi can do is 7.8fps. Further optimization for slower modern confusers involved scaling down the video to 640x360.

The gopro 7 delays its HDMI feed...Continue Reading
Posted by RobinStr | Today @ 02:02 PM | 3,442 Views
I have been given an old Flair cable tensioner, previously I have just had adjusters on each cable - has anyone any experience of the Flair device or similar and do they work?
Posted by phil alvirez | Today @ 10:41 AM | 4,718 Views
we hear about DSM2, DSMX, and so many other alphabet soup letters...
but, what does it mean?
what we get from that?
i have found some links to threads about it and i would like to bring some to see if you learn what is this all about.
for instance: https://www.google.ca/search?q=radio...client=gws-wiz
more specifically: https://www.we-online.com/web/en/ele...more%20parties.
this in particular explains it well what the letters used by brands: https://oscarliang.com/rc-protocols/
here we find links to most brands: https://www.rcgroups.com/forums/show...o-RC-Protocols
and here he tells us which 1 is better: https://www.liveabout.com/dsm-rc-con...eivers-2862526
but then we get the final word about all of it here:
" all modern model RC systems to the best of my knowledge are both FHSS and DSSS.
They describe different parts of the generation of the RF signal.
FHSS is the scheme by which the frequency hops around the 2.4 band to minimise any chance of swamping by other 2.4 signals from powerful transmissions.
DSSS is an encoding scheme on those frequencies that optimises the signal to noise ratio.
Combination of the two gives the best chance of a long range reliable control link.
The last paragraph of the David Buxton document "RC Spread Spectrum Demystified” summarises it all:
"Our radios use FHSS, which is modulated using DSSS, which is modulated using CDMA, which is modulated using frequency or phase shift keying. DSSS...Continue Reading
Posted by cuavlindy | Today @ 02:20 AM | 7,927 Views
CUAV C-RTK 2 item is still in presale.It is avaible to ship now.
If there you need any CUAV products.please contact us for shipping in advance.because the chinese new year coming,and we can ship goods before 25th January.thanks🥰
Posted by Old_Pilot | Yesterday @ 04:36 PM | 11,966 Views
Got the wings and feathers hinged and assembled. Wing is a modified KFm-3. Steps are at 66% and 33% with (2) 0.156 sq CF spars. Leading edge was beveled and sanded, and the LE tape will soften the edges. A standard KF-3 is 50% and 75% I think....At any rate, a 50-75 KF would get into the ailerons...It wouldn't work. Besides I've flown this wing before, on this airplane...she flew just fine
Posted by Old_Pilot | Yesterday @ 02:29 PM | 12,746 Views
I cut this little girl out several months ago with the thought of building her again.....however, the demand for Einzpfeils and StealthStreams took precedence, plus a couple of balsa gliders. Probably going to color her the same as before (see pic). I still have to cut and shape both the canopy and the nose block, but that won't take long. I'll have the wings and the feathers assembled shortly
Posted by Old_Pilot | Yesterday @ 11:21 AM | 14,006 Views
Since I've had enough of gliders for awhile, I'm going back to stand-off scale warbird foamies .....(3) to be exact...An S-3 Viking, a CF-100 Canuck (already cut out), and an SU-25 Frogfoot. I've got a drawer full of fans and ESC's....In prep for that, I cut some control horns, this time out of 3mm light ply...the one's I cut out of 1/16 were just too fragile......and I can paint them to match the color scheme of the aircraft
Posted by UpNup | Jan 15, 2022 @ 02:48 PM | 22,582 Views
My wife said putting puzzles together might help my mental health. Good to know. I think assembling tightly-cut forestry products into a work of art is a brilliant idea. This puzzle is called DW Hobbys Hansa-Brandenburg w29. 😉
Posted by PittSpecial | Jan 15, 2022 @ 12:02 PM | 23,761 Views
Okay guys,

Today was just a magical morning in Central Florida. Cool at 60 Degrees F and Zero wind and with a Large BLUE sky to enjoy!

I arrived right at 9:03 am as I didn't want to compete with the early birds at the Club for a turn. I needed the sleep and rest after almost a full night of working and preparing my new member of my fleet, the 2000mm wing span Cessna 182 giant.

The model leaped up with just 4-Cells using that 840Kv 35mm brushless outrunner motor and a bank of parallel, 4-Cells, 4,000mAH, 40C, Lithium Polymer pack place way up front. I replaced the test receiver (Spektrum AR6200 + SAT) - to- the (Spektrum AR8000 + SAT) and dual power feed from the CASTLE CREATION BEC PRO. Reason I needed the AR8000 as it has enough ports for the Dual Feed power from the external BEC.

I found the model light on the control and very very forgiving because as soon as it lifted off the ground it felt like a giant trainer and just could not believe how docile and easy manners.

One item that I still have to determine is why it sinks quickly as (not viewable in the Video) it came close to the field's edge and almost became a boat. Perhaps I have too much EXPO on the Elevator...hum..... "Or" it is nose heavy.

Anyway, I used the actual wing antennas that I ordered from HSDJETS for this model but, I used the securing pins that I bought from ACE Hardware as I liked the size instead the hardware pins from HSDJETS.

Please realized that I flew this model without any frontal Cockpit windscreen nor any windows of any kind! Those at the RC Club were very disappointed that this model has limited parts selection and commented very negatively about not being able to obtain the Frontal Battery Hatch from HSDJETS without forcing the customer in purchasing the entire FUSELAGE in order to get the Frontal Battery Hatch!

Okay, here is the video:

HSDJETS Cessna 182 (2000mm Wingspan) approximately 11-lbs. 01-15-2022 (3 min 4 sec)

Posted by Quagga75 | Jan 15, 2022 @ 09:02 AM | 24,952 Views
Inspired by a French design in Model Magazine with an updated Wing Planform and Airfoil. The Pod and Boom fuselage came out really well, and the modern Clark Y "Strak" looks good in XFLR5.
Posted by phil alvirez | Jan 15, 2022 @ 08:42 AM | 25,167 Views
i think you have heard this word before.
in simple words?
Modulation is the act or process of giving a wave or signal the amplitude or frequency of another wave or signal. In telecommunications, modulation is the process of conveying a message signal, for example a digital bit stream or an analog audio signal, inside another signal that can be physically transmitted.
and, how it works?

https://www.taitradioacademy.com/top...tion-work-1-1/
https://www.carritech.com/news/what-...ommunications/
https://www.tutorialspoint.com/princ...modulation.htm



i hope you will see things more clearly... or less muddy.
Posted by Tazkiller85 | Jan 15, 2022 @ 05:54 AM | 26,188 Views
🧐Yep Les Amis,
Off-Road, Sauts, FPV... la maison !!! La voil enfin, la nouvelle TURBO RACING tant attendue, la C 81. Un petit 4X4 au 1/76 plein de ressources qui permet de s'adonner plusieurs types de pilotage et contrairement aux autres Turbo Racing, il sera l'aise sur beaucoup plus de revtements, tapis, moquette fine, obstacles etc ... Livr avec 4 rampes de saut, ce nouveau pack vous surprendra par ses nombreuses possibilits ! En bref ... Je SURVALIDE mme si j'aurais aim un tarif lgrement infrieur... Prenez soin de vous (et des autres) et merci tous pour votre soutien .

Turbo Racing C81 1/76 Off ROAD - Review Test Démo - Résultat du concours ! (22 min 24 sec)


🧐NOTATAZ : 18/20 Pas donn, mais j'adore !

- Turbo Racing C81 : https://www.banggood.com/custlink/KKmYnpOI00
- Autres produits Turbo Racing : https://www.banggood.com/custlink/GDvRAHThGd
- Camra FPV AIO : https://www.banggood.com/custlink/33GYs5TdGW
- Lipo 3.7V 150mAh X5 : https://www.banggood.com/custlink/33DRQPfE3F
- Tapis Mini (coupon Parts8) : https://bit.ly/3yed3T3
- Tapis MAXI (coupon Parts8) : https://bit.ly/3qFs6T3
- Radiocommande 1er Prix TURBO RACING : https://www.banggood.com/custlink/3vGEnhowqI
ALIEXPRESS
- Lipo 3.7V 100mAh : https://s.click.aliexpress.com/e/_AVky64
- Pices dtaches Mini Cooper : https://s.click.aliexpress.com/e/_9zRaT7
- Pices dtaches RX7 : https://s.click.aliexpress.com/e/_9xCXFn

Prvisions et Nouveauts,...Continue Reading
Posted by Eric Zhu | Jan 15, 2022 @ 03:15 AM | 27,350 Views
AGFRC Low Profile Waterproof Steering Servo High Torque 35KG 12V Programmable Metal Gear Smart Servo for 1/10 RC Model, Control Angle 180(SA66BVMW)

SA66BVMW is low profile design 3S brushless smart servo, full aluminum short case with heat sink ribs for high efficient heat dissipation. Low profile body which is more flexible for different car or boat/ship models. 0.073sec fast speed, 35kg-cm high torque and magnetic sensor waterproof IP67 which allow the servo work in humid environment or rainy day.
Name: AGFRC SA66BVMW 35KG 12V IP67 Waterproof Brushless Programmable Low Profile Smart RC Steering Ser.jpg
Views: 0
Size: 502.4 KB
Description:
This low profile smart servo allow to plug with 3S LiPo battery directly for higher power application. Optimize the circuit board design to make the operating voltage up to 14.4V instead of 12V only, enables it to be better applied to more models, like 1/10, 1/12 On Road, off Road, Touring, Drifting cars. Programmable Smart feature enable to change the firmware for regular and winch usage.
Name: AGFRC SA66BVMW 35KG 12V IP67 Waterproof Brushless Programmable Low Profile Smart RC Steering Ser.jpg
Views: 0
Size: 383.9 KB
Description:

Feature
  • Fast Cooling Heat Sink Case
  • Extra Strong Steel Gears
  • High Quality Brushless Motor
  • Metal Dual Ball Bearings
  • Programmable Digital Circuit
  • Wear-resistance 4pin Connection Cable
  • High Precision Magnetic Sensor Waterproof Up To IP67
  • Available to change the firmware for regular and winch usage
  • Ideal for 1/10, 1/12 On Road, Touring, Drifting cars, Airplane, Robot, Boat etc.

Specification
  • Item Name: SA66BVMW
  • Operating Voltage: 7.4-14.4 V
  • Operating speed: 0.095 sec/ 60 @ 11.1V
  • Operating speed: 0.086 sec/60 @ 12.0V
  • Operating speed: 0.082 sec/60 @ 12.6V
  • Operating speed: 0.073 sec/
...Continue Reading
Posted by Catherine Chen | Jan 15, 2022 @ 02:12 AM | 27,760 Views
Hello Everyone,

This is Catherine from Dongguan QS Electronic Tech Co.,Ltd.

This is QS8 Antispark Connector JST Plug Extension cable Model Toy Battery Balance Charging Conversion Line.

End A: QS8 Male connector

End B: QS8 Female connector, BEC male connector 2PCS

Wire: 12AWG Silicone wire + 22AWG Silicone wire

Length:100mm

Welcome to contact.

Best Regards,
Catherine
Dongguan QS Electronic Tech Co.,Ltd
www.qsrccn-hobbies.com www.qiangshui.en.alibaba.com
M 86 134 80010457 P 86 (0) 769 84750417 Skype chenmin19911 Email [email protected] / [email protected]
Posted by jdixon77 | Jan 15, 2022 @ 01:51 AM | 28,041 Views
So a few years ago I was looking for an inexpensive little stadium truck at one point to upgrade and play with, so I jumped on the letgo app and one that caught my eye, was an old Losi LXT. It caught my attention mainly for the body design (A cool truck with the number 3 and GoodWrench sponsorship), and kept my interest due to the price and the info shared by other hobbyist who noted it could be upgraded to brushless without having to upgrade all the gears. So I sent a message to the seller that I was interested and arranged a meet up for inspection and purchase. I was given the address to his home and a time to meet.

I pulled up to the suburban home of a gentlemen tolling around in his garage, packing ammo If I remember correctly. Well we get to talking of course and he is telling me about the truck and how he was big into RC as a youngster and he mentions he did the design because his cousin Dale raced the number 3 in NASCAR. And after the expected "Wait a min, you mean Dale Earnhardt?"

"Yep" and the stories of him growing up and going over to his house to swim in the pool and the family get togethers at his house, before he became super famous followed of course. And boy did he have a lot of Earnhardt stuff, which he noted he had no interest in selling for the money, being family an all, which I certainly respected him for that. I wound up selling the truck itself a little while later since I realized AWD was just more my taste, but I kept the body, and never mentioned the story behind it when I sold it. Now if the person who bought that truck from me happens to see this, yes that was the one. This shell has been like a novelty sitting on my shelf for a while, but now I am just gonna strap it on my wifes truck and let it be what it should be :-) And I just thought I should get some pics of it and blog the story behind in case it doesn't survive ;-) Plus it's just a neat little story.
Posted by BDOG1 | Jan 14, 2022 @ 11:11 PM | 29,176 Views
I took the opportunity to get back out on the slope today .
The forecast today was for a max of 12 mph, North /NE and temps around 19 degrees
Not a day the I normally would consider a flying day
But .....
I am just finishing my build of a 30 Magnummodels. LaGG -3 stand-off scale WW2 warbird .
I hoped to at least get some test glides to rough trim the glider

I was pleasantly suprized to get in a couple of short flights when the lift pumped ,once trimmed she flew very well while the lift was there .

With conditions so light I did not even try to put my Sizzle wing up .

This coming Mondays forecast is predicting 15 to 20 mph straight up the hill , I am looking forward to stretching this little birds legs. 😁
Posted by turbinefancy | Jan 14, 2022 @ 08:48 PM | 29,884 Views
Some salient points for using head-tracker to enhance situational awareness and scale realism. And of course, it's second nature to move one's head around when flying. Freedom!

RC Spitfire Aerobatics - How Headtracking Enhances FPV 💥💥💥 (1 min 30 sec)