2013 Tundra Rock Warrior Build Sheet

[Tyler Meek]

I first posted on Expedition Portal regarding an onboard water system a few days ago under the "adventure planning" category. I have since realized that I may have started that thread in the wrong spot. Here is that thread: http://www.expeditionportal.com/forum/threads/124133-Touch-Screen-On-Board-Potable-Water-System

I will continue to post updates and mods to the truck as they happen here.


To bring this up to date here is the simple "slap on" mods that have been completed:
Sug Top Rebel cap
Bed Rug
Dash I-Pad Mount
Bumper Beer Opener

 

[Tyler Meek]

This is the dash mount iPad holder my wife gave me for Christmas. I love having my iPad on the dash but the mount itself sucks. The bracket that attaches to the truck is springy so it makes the screen bounce all over. I will need to weld a little triangle at the corner to make it stop bouncing. It makes me wonder if these folks http://padholdr.comever install the products they build. The holder itself is very nice, its just the bracket that needs work.

 

[Tyler Meek]

I figured I better show the beer opener.:wings:

 

[bigwapitijohnny]

Tyler,

Welcome to ExPo. There is a wealth of information here. Looking forward to seeing your build.

Regards,

BWJ

 

[Tyler Meek]

Thanks BWJ

After thinking about it I have decided to make a bunch of changes to the touch screen system. I was originally going to use the screen to operate just the water system however after Joe (Joe's Toy) questioned its ability to run all the accessories it seemed dumb to have this tiny 2.5" screen to operate a water system and a bunch of toggles to operate everything else. I decided to upgrade the screen to a "big" 4.3 inch capacitive touch screen. It has 13 I/O pins that can operate 13 different relays. That's more than enough to control anything a guy would want to bolt onto his truck. The screen will run a digital relay board from Parallax housed in a #1120 Pelican box mounted in the engine bay.
The relay board will only have 8 relays on it but the box will have enough room to double stack 2 boards when/if I need to control more stuff, up to 12 amps per I/O.
It took awhile, but I think I am going to mount the screen in the overhead console of the Tundra. There is a eye glasses holder that is way too small to be a practical glasses holder but fits the uLCD-43 screen perfect. I will have to take the liner down to run the wires but other than that it should be a sweet install, totally concealed.
If anybody has a spare overhead console for a tundra with the eyeglass holder in it I would be interested. I just talked with the dealer and they are saying I have to buy an entire console at $382. Yikes!

 

[bmxer06pa]

So are you able to run a traditional relay off of the I/O pins? All of my lights are controlled by relays already. Would I just be able to remove the switches and put the screen in it s place?

 

[Tyler Meek]

Probably not, but keep in mind thats just a "shoot from the hip" kind of answer. To really find out you would need to tell me the part# of the relays that you use. The screen toggles between 0(ground) and 3.3v. It actually can do a lot more than that, like communicate via byte size operators, but for what we are talking about it communicates via TTL level voltages. I am guessing that your relays are 12volt actuated?

 

[bmxer06pa]

Yes I have the normal 12 volt relays from hella.

 

[Tyler Meek]

Thats a gnarly relay. 150 amp peak with a 40 amp continuous rating, do you have a flux capacitor in that thing?
They have a 20 amp coil for a single gate (spst = single pull, single throw). That's a lot of juice to shut the door.
You could run two 50" Rigid Light bars shelling out 46,000 Lumens of light with just one of those relays.
You would need to redesign your system to use a touch screen.

 

[Tyler Meek]

I have been working out the bugs in the electronics, still lots of problems. This is where I am at now.
https://www.youtube.com/watch?v=j6l3PeyNdbs

 

[Tyler Meek]

Jeez, after messing around with this for a couple of months I finally got it working without any issues. The I/O relay board was easy, just time consuming. I did end up soldering a pin connection where a capacitor should have been and I had never de-soldered anything before, so that wasn't fun.
View attachment 222624
The board fit perfectly in the Pelican box.
View attachment 222625
The problem turned out to be pin 3 on the touch screen was outputting 3.3 volts at idle. Every time I connected or called that pin the screen would go blank.
Here are some screen shots:

 

[Tyler Meek]

HAHAHA, I spelled passenger wrong on the screen, CRAP!

 

[jpat30]

Man that is sweet, dude......................

 

[Tyler Meek]

 

[Tyler Meek]

Time to remove the overhead console and build a mount for the screen in the sunglass holder.