A challenge for electronic experts

macafee2 · 15th October 2018, 09:06

A challenge should you wish to accept it. I was not sure if to post here, technical or technology, but here won.

Ok, so for the challenge.

You are to detect the car going into reverse and supply 2-3 seconds of power to the wing mirrors to make them point down.

You then need to supply 2-3 seconds of power when the car is put into first, drive or the ignition turned off to reset the mirrors.

To make the challenge more of a challenge, there needs to be the facility to turn the system off. This is for those, such as myself that have to tilt the mirrors down, so towing mirrors can be fitted.

The normal switch for adjusting the mirrors must remain operational.

I think 1 wire from gear box to door card should be the only one to run, the rest and the device should fit behind drivers door card and hopefully any power can be obtained at the drivers mirror switch.

macafee2

Avulon · 15th October 2018, 09:39

Unlikely that you'd ever get the correct mirror position with having a position sensor (i.e. memory mirrors same as memory seats).

Arctic · 15th October 2018, 10:37

As above my FL2 does this, it also will go back to the original position if you reverse at speed so not to confuse the driver, all built in with memory so it would be a big task to convert the mirrors on ours I would think.

vitesse · 15th October 2018, 13:02

You might find this thread of interest where the dipping mirror in reverse was discussed. https://forums.mg-rover.org/mg-zt-ro...49/index5.html

Regards

macafee2 · 15th October 2018, 16:19

Quote:

Originally Posted by vitesse

You might find this thread of interest where the dipping mirror in reverse was discussed. https://forums.mg-rover.org/mg-zt-ro...49/index5.html

Regards

had a read, did not read to last page. It was mentioned but I did not see if they got it working

macafee2

macafee2 · 15th October 2018, 16:21

Quote:

Originally Posted by Avulon

Unlikely that you'd ever get the correct mirror position with having a position sensor (i.e. memory mirrors same as memory seats).

may be but nothing ventured nothing gained and a condition would be the tilt button on the door will still be active for fine ajustment

macafee2

macafee2 · 15th October 2018, 16:24

Quote:

Originally Posted by Arctic

As above my FL2 does this, it also will go back to the original position if you reverse at speed so not to confuse the driver, all built in with memory so it would be a big task to convert the mirrors on ours I would think.

i'm no electronics expert but pick up power from reverse switch/light.

send power to wires that do the tilting for 2-3 seconds. should be able to do this at drivers door. hey presto

no idea if you would need to make sure power does not run the wrong way to the switch.

cut into the wires at drivers door card.

am I imagining this to be far simpler then it is?

macafee2

Bolin · 15th October 2018, 23:44

I think the BMW E46 could do this on the passenger's side with no 'off' button, might be a starting point - some of the electronics might be compatible.

Terryf · 16th October 2018, 09:14

Time mirror from normal position to required reverse position. Wire from reverse switch to timer circuit the from timer circuit to each mirror. At each mirror locate wire to down movement drive and connect.
Timer could then be set to required number of seconds.
A normally open relay could be used after reverse switch and using similar idea as above mirror would be raised for same time when reverse switch not operated.

Any way that's my thoughts as a non electronic body.
Terry

vacuman · 16th October 2018, 10:08

Too much time on your hands

15th October 2018, 09:06	#1
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,928 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	A challenge for electronic experts A challenge should you wish to accept it. I was not sure if to post here, technical or technology, but here won. Ok, so for the challenge. You are to detect the car going into reverse and supply 2-3 seconds of power to the wing mirrors to make them point down. You then need to supply 2-3 seconds of power when the car is put into first, drive or the ignition turned off to reset the mirrors. To make the challenge more of a challenge, there needs to be the facility to turn the system off. This is for those, such as myself that have to tilt the mirrors down, so towing mirrors can be fitted. The normal switch for adjusting the mirrors must remain operational. I think 1 wire from gear box to door card should be the only one to run, the rest and the device should fit behind drivers door card and hopefully any power can be obtained at the drivers mirror switch. macafee2

15th October 2018, 09:39	#2
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	Unlikely that you'd ever get the correct mirror position with having a position sensor (i.e. memory mirrors same as memory seats). __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button

15th October 2018, 10:37	#3
Arctic Give to Learn Freelander 2 Join Date: Aug 2010 Location: West Midlands Posts: 18,716 Thanks: 1,155 Thanked 6,407 Times in 3,874 Posts	As above my FL2 does this, it also will go back to the original position if you reverse at speed so not to confuse the driver, all built in with memory so it would be a big task to convert the mirrors on ours I would think. __________________ Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise "

15th October 2018, 23:44	#8
Bolin This is my second home Rover 75 2.5 V6 Connoisseur SE 4dr manual Wedgewood Blue 2 04-05/06/2001 Join Date: Nov 2006 Location: N.E. Hampshire Posts: 4,617 Thanks: 289 Thanked 308 Times in 243 Posts	I think the BMW E46 could do this on the passenger's side with no 'off' button, might be a starting point - some of the electronics might be compatible. __________________ "...the new Rover 75, which is a fabulous car......I think it looks fabulous....It's like sitting in a Rolls Royce......For me, this is the star of the show.....it looks so good" - J. Clarkson, motoring journalist on the launch of the Rover 75 in 1998.

16th October 2018, 10:08	#10
vacuman Gets stuck in MG ZT-T Join Date: Feb 2017 Location: St Albans Posts: 855 Thanks: 69 Thanked 236 Times in 172 Posts	Too much time on your hands __________________ • This vehicle was the 8,186th ZT-T to run off the production line, out of 8,249 • This vehicle was the 1,723rd ZT-T 190 + to be made out of 1,756 • This vehicle was the 149th ZT-T in Mica Blue (Ignition) (code: JGY) to be made out of 160 Mica Blue (Ignition) ZT-Ts

15th October 2018, 13:02	#4
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,534 Thanks: 395 Thanked 823 Times in 652 Posts	You might find this thread of interest where the dipping mirror in reverse was discussed. https://forums.mg-rover.org/mg-zt-ro...49/index5.html Regards

16th October 2018, 09:14	#9
Terryf Gets stuck in Rover 75 Saloon BRG Join Date: Jun 2007 Location: Retford Posts: 573 Thanks: 119 Thanked 142 Times in 69 Posts	Time mirror from normal position to required reverse position. Wire from reverse switch to timer circuit the from timer circuit to each mirror. At each mirror locate wire to down movement drive and connect. Timer could then be set to required number of seconds. A normally open relay could be used after reverse switch and using similar idea as above mirror would be raised for same time when reverse switch not operated. Any way that's my thoughts as a non electronic body. Terry