1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Some sort of switch that turns on when it recives voltage.

Discussion in 'Gen 3 Prius Technical Discussion' started by MagnusAG99, Jun 8, 2017.

  1. MagnusAG99

    MagnusAG99 Senior Member

    Joined:
    Feb 21, 2017
    671
    517
    41
    Location:
    Norway
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Hey, im just wondering, does it exist any kind of switch that can sit in between a positive cable and turn it on when it receives some sort of voltage? like.. i have added some buttons to my car (parking sensor and front camera) but they r connected directly to the battery, which means they r always on, and it would be great if it existed any sort of switch that i can add in the cable that turns on and off the voltage from the battery to the buttons ive added. Like, it could for example be connected to the rear lights, so anytime the rearlights turn on the buttons turn on. For example.. kind a hard to explain, ill leave a pic down here to to what i mean.[​IMG]
     
    #1 MagnusAG99, Jun 8, 2017
  2. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,275
    15,072
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    #2 ChapmanF, Jun 8, 2017
    MagnusAG99 likes this.
  3. MagnusAG99

    MagnusAG99 Senior Member

    Joined:
    Feb 21, 2017
    671
    517
    41
    Location:
    Norway
    Vehicle:
    Other Hybrid
    Model:
    N/A
    thnak u dude. lol, u have helped me alot with my car now, really appreciate it.
     
    #3 MagnusAG99, Jun 8, 2017
  4. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,848
    3,102
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    A regular relay can also be used to switch power to any accessory. The relay coil is wired to a wire or fuse that is only powered when in Ready mode, no voltage sensing circuit necessary.
     
    #4 xliderider, Jun 8, 2017
  5. Sam Spade

    Sam Spade Senior Member

    Joined:
    Dec 3, 2016
    2,036
    1,023
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    A switch that closes when a voltage is applied is.........a relay.
     
    #5 Sam Spade, Jun 8, 2017
    jerrymildred and Maarten28 like this.
  6. Eodguy

    Eodguy Junior Member

    Joined:
    May 14, 2017
    20
    27
    0
    Location:
    Seattle
    Vehicle:
    2010 Prius
    Model:
    V
    Wire in a relay to a 12v supply that turns on with the key. Be sure to use a fuse from the main power input.
     

    Attached Files:

    #6 Eodguy, Jun 20, 2017
    MagnusAG99 likes this.
  7. MagnusAG99

    MagnusAG99 Senior Member

    Joined:
    Feb 21, 2017
    671
    517
    41
    Location:
    Norway
    Vehicle:
    Other Hybrid
    Model:
    N/A
    yea, thanks dude, i have already done some haha, for my front camera and parking sensors and stuff, ill leave the diagram down here so u can see what i did.
     

    Attached Files:

    #7 MagnusAG99, Jun 20, 2017
(You must log in or sign up to post here.)