the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Rear view camera automated screen.


Post ReplyPost New Topic
< Prev Topic Next Topic >
skylark-53 
Member - Posts: 4
Member spacespace
Joined: September 16, 2015
Location: New Brunswick, Canada
Posted: September 16, 2015 at 11:56 AM / IP Logged Link to Post Post Reply Quote skylark-53
I have a 1952 Chevy pickup (hot rod) and in the middle of the top of the dashboard, there's a "radio delete plate" (RDP for short).
I have hinged this RDP and attached it to the screen for the rear view camera. I want to use a cowl vent motor (7 rpm) to open the RDP whenever the back up lights are on and close the RDP whenever the back up lights are off.
For this to operate, I need to stop the RDP once the screen is the fully opened of fully closed position. I want to use micro-switches to stop the up or down travel but need help with the wiring of the relays and micro-switches to make this work.
Any help would be greatly appreciated.
Skylark-53
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: September 16, 2015 at 12:57 PM / IP Logged Link to Post Post Reply Quote howie ll
Here's a simple way to do this. Use the reverse (back-up) light feed.
This wire sits on ground, when reverse is engaged it goes to 12V+.
Use a pair of DEI 528t adjustable timer relays, just add 1/2 second to the normal open/close times, no microswitches required.
flap_motor.bmp
skylark-53 
Member - Posts: 4
Member spacespace
Joined: September 16, 2015
Location: New Brunswick, Canada
Posted: September 17, 2015 at 7:55 AM / IP Logged Link to Post Post Reply Quote skylark-53
howie ll wrote:
Use a pair of DEI 528t adjustable timer relays, just add 1/2 second to the normal open/close times, no microswitches required.
flap_motor.bmp
Thank you for the quick response Howie II,
I found some of those timer relays online, they're a bit bulky for my installation. I was wondering if latching relays, or polarity reversing relays could be used instead... Also, the micro-switches would be on the motor bracket and I've already allowed for that (if need be).
Thanks again...
Skylark
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: September 17, 2015 at 7:58 AM / IP Logged Link to Post Post Reply Quote howie ll
Then use normal relays and microswitches.
skylark-53 
Member - Posts: 4
Member spacespace
Joined: September 16, 2015
Location: New Brunswick, Canada
Posted: September 17, 2015 at 8:54 AM / IP Logged Link to Post Post Reply Quote skylark-53
Howie, my knowledge on how to make that work is somewhat limited.
Could I ask you to read my steps below and sketch me a schematic, if it's not too much trouble.
These are the steps I "thought" could make this work with 2 relays, 2 micro-switches and 2 diodes:
Step 1 = Shifter moves into reverse gear
- Backup light circuit is activated
- NC relay OPENS (no current flows to the downward circuit)
- Diode also prevents flow to downward circuit.
- LED screen starts its upward travel.
Step 2 = LED screen reaches TOP of travel
- CW rotation trips NC micro-switch to NO and kills up upward circuit.
- LED screen now fully open for driver viewing.
Step 3 = Shifter moves out of reverse gear
- Backup light circuit closes
- Accessory side of ignition circuit powers downward circuit.
- NC relay from step 1 closes again.
- Second diode prevents current flow to the upward circuit.
- Motor polarity is now reversed.
- LED screen starts its downward travel.
Step 4 = LED screen reaches bottom of travel
- CCW rotation trips NC micro-switch at bottom of travel to NO and stops.
- Radio delete plate now completely closed.
Thank you for your time...
Skylark-53
p.s.: What program do you use to draw your schematics?
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: September 17, 2015 at 9:37 AM / IP Logged Link to Post Post Reply Quote howie ll
Sorry, now you can see why I suggested the 528t, always use KISS principle, PAINT.
skylark-53 
Member - Posts: 4
Member spacespace
Joined: September 16, 2015
Location: New Brunswick, Canada
Posted: September 17, 2015 at 12:36 PM / IP Logged Link to Post Post Reply Quote skylark-53
I understand Howie... Thanks anyway.
If I use Paint and design a schematic that I think would work, would you be willing to double check it for me?
Thanks again...
Skylark-53
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: September 17, 2015 at 12:44 PM / IP Logged Link to Post Post Reply Quote howie ll
Of course.

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Friday, March 29, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer