Adding backup camera to 2012 non-nav Prius 2 with touch screen

how does the stepdown wire in

 

what I need is a diag to show 6.5 stepdown to 3.3v and 12v stepdown to 6.5v with using the lm2596 as to what wires go to where I real good on the install of parts but need help on the wiring setup

 

Dan4500,
Your circuit worked Great. I had to reinstall a new camera in my Prius II. I had a factory Tacoma 6.5v camera in is first, but I think the mods. I did to mount it allowed water to get in. Luckily I wiring is good so all me work was done in the back hatch. Thanks again for all your work on the electrical (EE) side of this project.

 

Thanks for the kind words.
As for "Tcerr" you need to connect per "our1vue" instructions. Do not confuse the red & black of the camera with the red/black of the car. The camera red/black connects to regulator outputs +/- respectively. This connection will send 3.3 volts to camera. You need to have removed the regulator that came with the camera if that is what you bought. The input of the regulator is connected + to white prius wire and - to orange prius wire.

Then yellow camera wire which is video to red prius wire and its shield to black prius wire.

You need to be very careful with the lm2596. I looked it up and it comes in many varieties. It looks like it may need additional components to make the 3.3 volts. I am hesitant to suggest anything here as I do not have any experience with this device. From what I see posted here, you should not do anything with 12 volts with the lm2596.

Please be careful and heed the warning of our1vue.
Dan4500

 

Installed my backup camera today. Huge thanks to everyone who contributed to this and helped answer my questions in the other thread.

For reference, I bought the camera on ebay from chenwen, but the supplied video cable didn't come with the extra pigtail wire like many examples. I just used the yellow and black from the video cable for the video+ and return wires, and ran a second wire for power back to my homebuilt regulator.

 

I cant wait to install mine. Its coming in the mail

Galaxy Note 2 ? 4

 

Nice work our1vue!

 

got mine hooked up works great thanks for the help used the home made reg

 

Just installed mine last night. Works great

Galaxy Note 2 ? 4

 

I wanted to confirm the building of the regulator. I have a board but not like the one in the picture. Is it true that the lines on the board are connected? Mine only has individual holes so I would need to solder a wire to each component?

A501 ? 4

 

Perfect!! Thanks for the visual

 

I would like to thank everyone who has contributed to this venture. I installed my camera last night without any issues!!

 

Howdy:
Thought I'd check and see if you've installed the camera. I've since gone on another quest to see why the Prius seems to attract rodents to chew on its wiring. I parked long term at the airport returning to find the varmints had chewed the speed sensor wiring. Very expensive repair.

Rearview cam working fine.

dan4500.

 

Thanks everyone for all the insights and installation details! Last June, I inatalled a camera in my friend's 2012 and today I just installed a similar camera in my new 2014 Prius 2. I chose to wire into the kick panel rather than the headliner. I built a new voltage regulator using the LD1117V33C voltage regulator with two capacitors and I added an LED on the 3.3 volt output for troubleshooting. The camera draws about 105 mA and the LED adds about 2 mA. This regulator circuit works down as low as 4.5 volts on the input, so does nicely using the 6.0 volts from the head unit. In the kick panel, I just used the Black, Red and White wires and left the Orange alone. Observing the LED, I found that the camera is powered whenever the Ready light is on, but the picture displays only in Reverse.
Thanks again for the help!

 

My special thanks to you for all your good advice and information. Yes, the LED is only visible if the panel is removed, but I found it useful to be sure my circuit was working and to monitor when the 6 volt line was on. I saw the 2-3 second start-up check signal when there was no camera connected. Then I saw that the camera was powered up all the time the hybrid system was "ready," even in Park or Drive. Hopefully, I won't ever have to see the LED again Meanwhile, with its 1000 ohm resistor, it only uses 5 mW of power. Also, I found that I had to tilt my camera up about 15-18 degrees to get a better view (less bumper in the picture). Good luck with your installation!