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1. Radio Remote controller = 50m
2. Arduino + radio = 500m
3. Android powered phone = 3.5 to coast. Possibility of using GSM network, 3G, 4G, EDGE and other mobile phone large bandwidth domestic services at low cost
4. GPRS / Iridium powered phone = Global coverage, narrow bandwidth, high cost. Alternative would be govt / science channels / cubesats / planetLab Partnership
5. Gaming console (here Microsoft X-box Kinect Motion tracking) Simplifying controlled to make Protei control accessible to all globally.
This is the “HobbyKing Quadcopter Control Board V2 (Atmega168PA)” [QUAD-CON16K] board. It’s bases on the KK control board. It contains three Japanese Murata piezo gyros for roll, pitch and yaw that are meant to be less sensitive to vibration than other gyros. The board has an Atmega168PA micro controller.
The board is meant to stabilise the quadcopter during flight. While there is documentation and I understand some of it I’m still struggling with this board. Adjusting the pots for roll, pitch and yaw is proving difficult but may not be the cause of my failing to fly.
25/06/2014 El presidente del Gobierno, Mariano Rajoy, asiste a la sesión de control al Ejecutivo en el Congreso de los Diputados.
Model Number: 0001-B Type: charm, fashion, luxury, quartz Feature Water Resistant Material: Alloy Gender: men Production Date: 2011Movement: Travel Needle waves Movement: Case Material: AlloyStrap Material: stainless steel Crown 2 Dial Colour: black Case Size: 42mm Clasp Fold Buckle Hand:3 Numerals: mixed and LEDPayment & Shipping Terms:Price: FOB USD 20~25 / pieceGet Latest Price Minimum Order Quantity: negotiable trial order Minimum Order Quantity: 500 pieces/trial order Port: Shenzhen Packaging Details: PVC round box, gift box, or customized packing 70pcs/carton or 100pcs/cartonSize: 48*36*32cm 20': 464 CTN 40': 928 CTNDelivery Time: 30 days after confirming the sample Payment Terms: T/T, Western Union, Money Gram Supply Ability: 300000 pieces/per month
The control tower at Greenham Common is due to be some sort of visitor's centre, selling souvenirs. I don't know, a miniature replica ICBM for your keyfob or something.
Peer down on this puny building from your almighty vantage point with the Google Earth linker.
Denver, CO -- The control tower is one of the last prominent features remaining from Stapleton International Airport. The tower now stands center of a residential and park redevelopment project. The last flight controlled by the tower was on February 25, 1995, when a Continental flight departed for London.
This work by cooper gary is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs License. If you use this photo, please credit as "photo by cooper gary" with a link-back to this page on Flickr.
20121025_09672
The control board is a go between. The radio receiver passes on the signal for the control board to interpret which passes on a signal to each of the electronic speed controllers which controls the speed of the motors.
If the control board detects the quadcopter tilting down it counters it by speeding up the lowered motor and slowing down the raised motor.
plans designed by John Welsford, rigging details by Kees Prins. Copyright Small Craft Advisor Magazine, all rights reserved.
Controls of the CMS magnet.
The voltmeter and ampmeter are clearly visible, with their respective scale.
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Motion control head I designed around a pair of surplus precision worm gearboxes. The vacuum infused carbon fibre covers are largely superficial/protective, they were my first experiment in directly CNC machining a mould. I machined the aluminium parts on my CNC router and anodized them at home.
Because the head was constructed around existing gearboxes its a little larger and heavier than I would like, weighing around 5KG but supporting loads upwards of 10kg.
NYC - March For Our Lives. Student led rally for gun control in the US. New York City, 2018 | wasikphoto.com
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The alignment algorithm evidently knows to sacrifice those control points that it considers hopeless. This view indicates the discrepancy between the control points. Those that align well are shown as dots. Those that could not be aligned are connected with lines showing the residual distances.
This begs a question: why didn't I ditch the second frame? I tried. The result was even worse. However awkward its orientation seems to be, it helps to join the frames 1 and 3 where it matters most — at the skyline.
The distance view makes it easy to understand the orientation of the original frames. For example, it shows very clearly that point of view of the second frame (of which only a portion is visible) was a few steps away from the more-or-less shared point of view of the other frames.
This screenshot is best viewed in the original size because the dots and lines are one pixel wide. They vanish when the image is scaled down.
Pictures of my Classic Space inspired display presented at "Une tonne de briques" expo held on June 3, 2018 in Saint-Basile-le-Grand, Quebec.
Timber is planed and shaped by machine but each item is fed by hand to enable quality control at the same time.
Working on attaching the control rod to the lower leg: tried a fixed joint, but the control rod always seemed to be in the wrong place, so I rigged up a flexible joint. There was a lot of strain for my wrist lifting the leg in certain positions, so I started playing around with this fore-arm brace, which seems to be helping (needs a little more hardware)
The closed Worksop East signal box located by the Down Main line alongside Carlton Road level crossing. Friday 24th January 2014
Worksop Station signal box was a Manchester, Sheffield & Lincolnshire Railway Company type 2 design fitted with a Manchester, Sheffield & Lincolnshire Railway Company Tappet lever frame that opened during the 1880s. It was renamed Worksop East, possibly around the start of the 20th century and the lever frame, which was originally circa 22 levers was extended to 33 levers at some time. The level crossing gates were replaced by lifting barriers on 17th-18th December 1972 and a second hand 20 lever McKenzie & Holland Cam & Tappet Number 13 frame, moved from Sleaford Junction signal box, was installed on 16th February 1975 complete with new tappet locking. The signal box was awarded Grade II listed building status on 19th May 1986 and was reduced to a non block post controlling the adjacent level crossing only on 16th August 1998 when signalling passed to Worksop signal box. It was closed on 10th October 1999 when the level crossing was converted to a CCTv level crossing controlled by Worksop signal box and after closure was retained to control level crossing barriers in an emergency
The signal box carries a British Rail corporate identity printed design nameplate
Ref no Canon EOS60D 2nd series - IMG_1881