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GGDR



Member Since: 26 Nov 2016
Location: London
Posts: 3519

United Kingdom 2011 Range Rover Vogue SE TDV8 Stornoway Grey
Anyone here into RC cars or planes? I have a servo question

I'm working on an automation project for the house....

I need something to move/swing 90 degrees at the press of a button and I found those servoless retractable landing gear units on ebay.

Wondering if anyone could explain how I would hook it up to a switch without it all getting too complicated...

Have tried a couple of RC forums and nada....

https://www.ebay.co.uk/itm/173120203868?ha...Swc9NhGxlL

Thanks in advance!!

. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Post #613566 23rd Nov 2021 8:00pm
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AJGalaxy2012



Member Since: 11 Jun 2018
Location: Gainsborough
Posts: 1458

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Bonatti Grey

Hi,
Its fairly straight forward. RC Servo's in general work on a pulse width to set the desired position, 1.5 MSec is centre, 1 MSec full one way and 2 Msec full travel the other way. Dependent on what youre doing a lump of veroboard, 555 timer and a handful of components could do it or a Arduino processor could be programmed to do it and many other things very nicely. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Post #613571 23rd Nov 2021 8:46pm
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GGDR



Member Since: 26 Nov 2016
Location: London
Posts: 3519

United Kingdom 2011 Range Rover Vogue SE TDV8 Stornoway Grey

John!
Ok you said it's pretty straight froward then all the words following sound really complicated..!
For me anyway.
Do you think there is something simple off the shelf I could buy?

. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Post #613605 24th Nov 2021 12:39am
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bigbo



Member Since: 07 Jul 2014
Location: Derbyshire
Posts: 540

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

I am an ex modeller but I am not an expert on the retract you link to.

These retracts are available from many uk stores just search for rc retracts, I would then suggest you contact a uk supplier and ask.
From what I can see these look to be a retract that does not require a separate servo as the servo is built in. It has 3 wires which would be positive, negative and a PCM line, as ajgalaxy said.

The reason for this is that this retract plugs into an rc receiver which use PCM to control the servos that are connected to it.
However when I used to fly the servo/retract was plugged into a channel which on the transmitter had a switch to lower/raise the retract. So you could go that route and buy a transmitter/receiver from one of the model shops, that would be easy to do.

Controlling a servo via others methods is easily achieved as ajgalaxy said but only if you are competent with electronics or computers like the Raspberry Pi or Arduino.

I hope that helps
David Range Rover 4.2 Supercharged 2006
Ford Focus EcoBoost 1.5 2017
MG TF 2003

Previous Cars of note
Land Rover Discovery 2
Jaguar Mk2 3.8 - Company car
MG Midget 1974 - Concours

Post #613607 24th Nov 2021 1:09am
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AJGalaxy2012



Member Since: 11 Jun 2018
Location: Gainsborough
Posts: 1458

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Bonatti Grey

GGDR wrote:
John!
Ok you said it's pretty straight froward then all the words following sound really complicated..!
For me anyway.
Do you think there is something simple off the shelf I could buy?

.


Could you give a little more detail of what youre trying to achieve (by pm if you prefer)? I can program an arduino board for you that you could adjust end stops of ordinary servo's, set the speed of operation all triggered from a single input. Arduino's are circa £6-£10 so not expensive. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Post #613609 24th Nov 2021 5:51am
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