Jump to content

Recommended Posts

John - Very nice work and documenting via pics! Thank you for taking the time to capture, organize, and share with the rest of us. Wow.

I'm putting a battery / solar system together and would love to know specifics on components, wiring, and lessons learned.

Great work - bet it was fun having so many help you.


  • Like 2
Link to comment
Share on other sites

Guest Ray Davis

Wow,  what a job you and the crew did.  You have a great looking coach and family.  I know you are proud as you should be.

Thanks for sharing 

Link to comment
Share on other sites

lotsa new combination cuss words were exchanged with the boys (men?) in that 70 ft paint booth over those two months.

Also, they learned that the words "automotive" painting should really be "mostly sanding"

- John

  • Like 1
  • Thanks 1
  • Haha 1
Link to comment
Share on other sites


I'm quite interested in the 360 degree camera system.  I'm curious about how you did the install, particularly the routing of the wires.  Is this something I can do in my 2005 Knight, which is pretty much like a quad slide Diplomat, without tearing up the interior?  I'd like to add this if I can sort out how to do it.


Edited by Dwight Lindsey
  • Thanks 1
Link to comment
Share on other sites

(Dwight asked me “How to install the 360 degree bird’s eye view camera system”)

So here it is, in detail, with links to the inexpensive “extras” you’ll need to purchase. 

Lots of “tricks” i learned too. Hope it helps.

- John


Hi Dwight.

Running the wires is easy - as long as you don't mind them being on the roof. Any other way would be brutal unless you have hollow outside walls (you don’t) 🙂

As I already have a ton of solar panels (with wires), running four more cables wasn't a big deal.

All of the cameras are tiny (less than a 3/4" cube). The connectors are "BMW" style, which means they are color coded, skinny, indexed, with 4 internal conductors - about the diameter of the wire itself (3/16"). The cameras get power through the cables. You can paint the camera to match your coach (mask off the lens).

First things first: 

  • Amazon sells rolls of expandable wire sleeving (search for “UV expandable wire sleeving").  You are going to need a lot of it. I used the white UV kind to match the roof.
  • The sleeves work like those Chinese finger traps. Push to open it, slide the wire in, pull to take out the slack. These protect (and bundle) the camera cables. Not expensive.
  • Three individual camera wires (rear, and side x 2) will be covered in the wire sleeves all the way from the cameras to the main entry by the front end cap.
  • You'll need another larger diameter roll of UV expandable wire sleeving to bundle the three camera wires (rear, and side x 2) to go from midway to the front cap. Same procedure, just with three previously sleeved cables.
  • Insulate the section of wire in the fridge chimney. you can wrap the small two foot section in the fridge chimney cable in one layer, then use metal tape to wrap that, then another layer. Or find some insulated sleeving (I had some of the insulated tape)
  • To secure the wires to the roof, I used these things: https://www.amazon.com/Adhesive-Backed-100-Pack-Nova-White/dp/B072R6GFKW  Buy a big bag.  You'll need to secure the wire about every 12" up there.
  • Clean the roof with acetone where these will be stuck just before sticking them down.
  • Buy a big bag of 4” UV resistant wire ties (white). They go through the cable tie bases. Use two cable ties per mount - criss-cross them. Clip off the excess.
  • Lastly, buy a bunch of self leveling sealant for RV roofs.  You'll use it to seal the cables to the tie bases, and seal the tie base edges to the roof.

NOTE: The camera wires WILL whistle and rattle and drive you crazy if the cable mounts are too far apart. 12” spacing seems to work best.

Then, You'll need one of these Winegard Roof Cable Entry Plateshttps://www.amazon.com/Winegard-CE4000-Cable-Entry-Plate/dp/B009LX1JWU to get the wires through the roof into your front cabinet area. 

Mounting the cameras:

  • Mount the cameras up high. Make sure each camera can see the bumper (front or rear) or the RV side all the way to the ground.
  • Throw away the cheap #4 screws that came with the unit, and get some good stainless #6 cap screws (allen / hex / or square drive holes). They will not strip. Fiberglass is hard to screw into, and will break off a screw. Drill the holes only slightly smaller than needed, unless you like broken screw removal.
  • Rear Camera:  Make sure the camera can see the rear bumper. My rear camera sits right next to the existing rear view camera. Drill a hole through the end cap, slide the wire through. Fish it out on the top of the end cap (mine has a big air intake, so that was easy). Run the wire to the top of the front end cap (all the wires will end up there). Seal up all the holes with clear silicone.
  • Front camera is easy too: Mount it above the windshield.  Make sure the camera can see the front bumper. Drill a hole to pass the wire through. (don't forget to silicone the holes when done). 
  • Driver Side Camera: Trickier on the slide side of mine (only one big wall slide on driver side), but same idea:  
  • The side camera has to mount on the slide wall, and the slide wall moves. So, I put a 2" square of awning tape on both sides of the slide topper awning, put a brass grommet right through the tape, about 1" from the roof, sealed the grommet with superglue so the awning material won't unravel. Then you slip the camera in from the underside of the grommet/awning, through the grommet, and on to the roof. If the wire sleeve isn't the right color to match your roof, and you care, wrap it in UV resistant colored electrical tape. You'll never see it.
  • Mounted the side camera on the slide wall. Make sure the camera can see the side of the coach at a the bottom.
  • LEAVE enough slack under the awning for the slide to go out. Silicone the grommet so no water can get on the slide and so the cable won't slip. 
  • Run the first side camera wire to the center to meet the rear and other side wire. 
  • Bundle all three cables together where the meet midway on the roof to the front cap using the larger diameter expandable wire sleeving. Run all three bundled cables to the front cap area.
  • If you can mount the cameras between the passenger slides (has to be more or less in the center of the coach), AND you can avoid the big awning, great!
  • If not - I could not - my passenger side camera is about 10" down the wall and underneath metal covered awning protector)... so...
  • Drill a hole in side wall at the fridge chimney area about 10” down the coach wall.  Slip the side camera cable through the hole in the side wall. Cover the chimney wire section with heat resistant insulation (Home Depot). Come out the fridge chimney, run the wire to the center to meet the others.
  • IMPORTANT TO REPEAT: Insulate the wire in the chimney vent.
  • Now, with all three camera wires up front, Find a spot to get the three wires through the roof and into either the front cap space, or inside any front cabinet area you may have.
  • Use the Winegard cable entry plate to go through the roof (Amazon link above). I had a hole where I took off my old Dish antenna, and used that.
  • Seal the cable entry plate top and bottom with self leveling sealant.  Make sure the wires don't rub on bare metal.

Getting the wires to the camera splicing computer

  • All the camera wires wires plug into the splicing computer harness.  The harness plugs into the splicing computer (about the size of a thick iPhone in a case).
  • You want to mount the computer under the dash with easy access, because you'll need power, ground, access to the reverse and turn signal wires, and access to the monitor wire.
  • Note, you can run it without connecting to the reverse and turn signal wires. It's just nicer when using them (the camera angles change to "see around" corners and show the back of the coach better in reverse).  I already have a really good dedicated reverse camera, so I only connected the turn signal wires.

Access to the monitor.

  • At first, I used my in-dash radio as a monitor. meh.
  • BUT, I really, REALLY like having it on the dash.  If you line it up right, it is just like a flight simulator.  You are seated up high, and it doesn't block my view at all.
  • I purchased a 10" monitor that SZDALOS sells (see the photo in the thread) and painted it to match my other toys and dash, but you could tie it into any monitor you like (and that you can see while driving).  
  • The SZDALOS Monitor has composite, VGA and HDMI inputs. You can use all three (switchable) and connect another camera or three (switch between backup camera, rear bedroom camera, camera aimed at you engine, etc. The monitor has a small remote to switch inputs, adjust brightness, etc. Less than $100. Good quality.
  • The splicing computer supports several video outputs:  VGA DB-9 connector, composite video (yellow RCA-type) and HDMI, BUT ONLY ONE OUTPUT AT A TIME.
  • Helpful Dash Modification: I made a special connector out of a 1.5" plastic desk wire hole cover that fits a hole I drilled in my dash (you can’t even see it), and mounted an double sided HDMI socket and matching power socket in the plastic connector thingy (apologies - electrical engineer geek). Using a small special 3" HDMI cable (they exist!) and a small 3" power cable, I can quick disconnect the monitor if not needed.  Monitor fits in the cabinet above.
  • Attaching the monitor to the dash: I super-glued a bunch of strong magnets to the monitor base plate, and ALSO to the underside of the dash (after finding the sweet spot for driving). Works great. Used 14 magnets (7 on top, 7 under the dash). It ain't going anywhere unless I want it to. Link to the magnets:  https://www.amazon.com/dp/B089CZG942
  • If you want the cameras to go to multiple monitors in the coach: I ran the HDMI output from the splicing computer into an 1x2 HDMI splitter, then one HDMI into my Onkyo receiver, one into the dash monitor.  Since I already have a long HDMI run between the front Onkyo (dual HDMI outputs) and the bedroom Onkyo receiver, that's how I connected the who she-bang to the rear bedroom TV. I ran the long HDMI cable (get a really good one with thick gauge internal wires, cause it's 40 ft.) in the air ducts to get to the bedroom.
  • Running a thick HDMI cable from dash to the back bedroom was a pain in the arse. While I was doing that, I also ran two CAT-6 ethernet wires (use “plenum rated” cables) from the front to the back bedroom. There is a wireless access point and an 8 port POE switch in both the front and back of the coach. The POE (Power Over Ethernet) switch makes powering any other cameras easy (I have one installed in the engine bay to keep an eye on things, and one in the bedroom/storage area to see what went “crash” when driving. Stuff happens.
    Surely I will die of Wi-Fi radiation poisoning from all this 🙂
  • You could also use an HDMI wireless transmitter to get to the back bedroom TV.  That would have been easier.

Connecting it all together:

  • Finally, route all four camera wires down the A-pillar - I used the driver’s side pillar, then under the dash. Getting A-Pillar on and off can be a PITA, but mine went ok.
  • Switched Power: I used an existing dash switch ("radio") to power the dash monitor because sometimes I want to leave the camera system running / recording with the monitor(s) off. 
  • The camera system will record to a 64GB memory card or 64GB thumb drive. Good for security, or if involved in an accident - insurance proof that someone hit you.  The camera system recording function can be turned on or off. Mines stays on all the time recording - even when in storage. It uses about 40 watts at 12V, so almost nothing.
  • Make sure you can get to the computer to retrieve the memory card or thumb drive in an emergency.
  • I also have the ability to monitor my coach over the internet.  So I want the ability to independently power the monitors, and camera system.  When stored a few miles from my home, I can log in to a wi-fi box in the coach that will show me inside cameras, the 360 outside cameras feed, battery levels, temperature, etc. Way Cool.

Adjusting the cameras:

  • SZDALOS send you with a big roll of specially marked tape.  You are supposed to stick it to the ground at specific intervals, turn on the system, then "splice" the individual camera images together by looking at the camera images through the monitor.  I didn’t use the tape.
  • The splicing process took me about 45 minutes after all the measurements are laid out on the ground.
  • Backup your splice settings (it is a menu choice), shut the system down, pull out the memory card, save them to a real computer, then put the memory card back in the splicing computer. That way, if the computer goes bad (my first one did), they'll send you a replacement - and you just restore your settings.
  • Then you are done. Ta-DA!

Splicing the camera - tricks:

  • An empty parking lot with straight lines is your friend.
  • The tape did not stick to the asphalt and blew away in windy Colorado Springs. Lots of bad words.
  • Instead, I used kids sidewalk chalk.  Get different colors. BRIGHT colors, not that Easter Egg looking pastel stuff.
  • The measuring and layout takes longer than the actual convergence splicing.The splicing took me about 45 minutes.  Measuring properly (the second time, right) took me two hours. Never time time to measure properly, always time to do it again 😞
  • Some of the "splicing” involve merging points that are about 3 ft off the ground (the directions make it clear where and how).  
  • SZDALOS says to stack the boxes that the units ship in to get the right height. NOPE
  • Instead, I used a microphone stand (and also a camera tripod) with colorful tape at the correct height.
  • The hardest splice points to see are in the far corners (these are fish eye lenses, and work great). COLORFUL chalk or COLORFUL duck tape make it easier.
  • I went to Harbor Freight and got a "rolling measuring wheel". Save yourself hours and spend the $9 for the rolling measuring wheel. Link:  https://www.harborfreight.com/1000-ft-measuring-wheel-95701.html
  • Keep your lines parallel and straight.  It matters.
  • When washing your rig, clean the camera lenses.
  • Dont accidentally hit the cameras and knock them out of alignment.  You will probably have to re-do the splicing dance. You will be pissed.

Attached is a layout SZDALOS sent me for a 40' RV (this is what you must tape/draw on the ground to "splice" the four cameras together):


Feel free to call or email me directly. John at Lead Free Design dot com  (719) 359-5170 direct line.

I’m CEO of my engineering firm, so if I’m in the lab, just leave a message.  I return calls,


  • John







Dash camera at dusk - Truck stop.jpg

Edited by StellaTariche
added photos
  • Like 2
Link to comment
Share on other sites

Man you did a great job, well done Sir!

I am curious about the 360 camera system. I like the view from above the RV, like a drone, but the convex mirror views would drive me nuts. Am I to understand, with this system, you can watch a view as if it was from a drone above the RV, like in the video?

Link to comment
Share on other sites

Hi Bill.

You only see the flattened and stitched together images - just like a drone would see.

You *can* choose to see two different flattened and stitched images side by side (selectable) or only a single image.

You can also see the unprocessed fish eye camera outputs (if you like) (not sure why anyone would).

AND for integrity, the four separate camera outputs - unprocessed- are actually what is recorded. Insurance and police want to see the unprocessed originals if there is a need. They have tools to stitch them together if needed.

BTW, a separate weather proof camera that has pan an tilt controls- controlled by your iPhone /iPad - mounted on the roof - is a great way to see that low hanging tree branch. Inexpensive. Get the night vision version. About $80. 

- John

22 hours ago, dl_racing427 said:

I'm amazed that you accomplished all this for only $30K.

Slave labor is awesome 🙂 

Edited by StellaTariche
Typo fixed
  • Haha 1
Link to comment
Share on other sites

BTW, if you are good with fiberglass and dash mods, THIS is an option I also considered,making an enclosure and placing it closer to the windshield (below the high hump the gauges are in)


(I was worried about glare, so I went with the single 10” monitor.)



Link to comment
Share on other sites

38 minutes ago, StellaTariche said:

Hi Bill.

‘You only see the flattened and stitched together images - just like a drone would see.

You *can* choose to see two different flattened and stitched images side by side (selectable) or only a single image.

You can also see the unprocessed fish eye camera outputs (if you like) (not sure why anyone would).

AND for integrity, the four separate camera outputs - unprocessed- are actually what is recorded. Insurance and police want to see the unprocessed originals if there is a need. They have tools to stitch them together if needed.

BTW, a separate weather proof camera that has pan an tilt controls- controlled by your iPhone /iPad - mounted on the roof - is a great way to see that low hanging tree branch. Inexpensive. Get the night vision version. About $80. 

- John

Slave labor is awesome 🙂 

It's Bill again.  I plan to order this, but it seems like there are 2 different size camera, is that correct?

Also, what size monitor did you get, 7 inch or 10 inch?

Link to comment
Share on other sites

29 minutes ago, Corkman said:

It's Bill again.  I plan to order this, but it seems like there are 2 different size camera, is that correct?

Also, what size monitor did you get, 7 inch or 10 inch?

Hi Bill,

  1. Get the small cameras
  2. Get the 10" monitor (the 7" is too small for my eyes, especially if you are showing the split screen view)
  3. Also, remember to order the "RV" model:  Longer camera wires, and you can choose the "vehicle" image, which can be stretched to accurately show your coach. You can also choose a "Class C" image, a "School Bus" Image and several others.

I was gonna use a 1966 Batmobile image (special order to make a custom image), as I used to own a street legal 1966 batmobile:



Here is the contact information for SZDALOS.  They usually respond in one day (time zone stuff):

Shenzhen dalos electronics co., limited

Contact person: Dories Liu
Email: info@szdalos.com
Skype: doris-hid
Wechat/whatsapp: +86-18682022573
Tel: +86-13691627132


Edited by StellaTariche
Link to comment
Share on other sites

"Wow they have so many pan tilt cameras, which one goes with the 360 system?"



The pan / tilt camera is separate and unrelated from the 360 camera system.

I just mounted the pan / tilt on the roof, use POE to power it, drop it down through the same hole, and use a phone app (or HDMI switcher) to see what I'm about to hit. 

"Hit things, John Does"
                       - Master Yoda

An HDMI camera switching system is a nice addition when you have a lot of cameras you want to switch between.

Edited by StellaTariche
  • Thanks 1
Link to comment
Share on other sites

Your comments are most kind. 

I'm grateful that my Dad (age 87, former lifer engineer at IBM) taught many of these skills to me.

I'm 58, my sons are now 21, 27 and 30.  Two are engineers like me, the other a successful business owner.  All are entrepreneurs like me.   

With the dearth of Millennials who can't change a flat tire, It seems to fall on us Boomers to pass along what our fathers taught us, right? 

- John

  • Like 5
Link to comment
Share on other sites

Peter asked me about the solar panel and battery setup:

Solar Panels:

  • Solar panel options have greatly improved since I first installed mine about 6 years ago.
  • I used flexible panels made by the now gone Uni-Solar company. They are "peel and stick" (and really do stick), can be walked on, polycrystalline.  I have two lengths up there (13 ft and 26 ft, if I recall).
  • They are combined in a balanced series / parallel configuration to output 48V. This allowed me to use a smaller gauge wire from the roof. About 1000w (in theory). In practice, I get 42A on a hot sunny day.
  • I have one 6 gauge cable dropped through the chimney vent, run carefully in the space between the baggage doors and upper coach, and terminate in the last compartment with the inverters.

Solar Inverter:

  • The inverter is a MorningStar MPPT 60A model
  • The 6 gauge wire goes through it's own breaker box, then onto the Morningstar inverter, which down converts it to 12V.


  • Very easy to install
  • Reasonably priced.
  • Will survive our famous Colorado hail storms
  • Can be walked on.
  • Easy to clean
  • Fit the available roof spaces.


  • Not as efficient as more recent panels, especially the new 300w monocrystaline panels
  • As they get hot, they get less efficient
  • Removing them in the future to upgrade will be an interesting challenge (3M adhesive is a true blessing and curse)

Inverters and Charging sources:

  • The MorningStar controller is really nice.  Has profiles to charge lead acid, AGM and lithium batteries. Nice remote mounted inside.
  • The Solar inverter is paralleled with the Magnum 3012 Hybrid inverter into the house bank - currently a mix of existing lead acid and LiFePO4 Lithium packs.  All the charging sources self correct instead of fighting with each other. Nice
  • Everything has its own shunt, so I can see what each bank and inverter is doing.
  • Every source and bank is individually protected, and will also disconnect itself from any problematic source.  Any bank will also disconnect itself from the house if it is being problematic.  The whole system will completely isolate from all sources and all loads under worst case catastrophic conditions.
  • The Magnum Hybrid inverter is clever. 3000W nominal, Lithium profile (with the Advanced Remote). The "Hybrid" means it can be used to augment shore power seamlessly. 
  • Hybrid Use Example: if you are plugged in somewhere (my Dad's house), and only have a single 15a circuit, you can still run a single AC unit.  The Magnum uses the batteries to Boost the AC voltage when the compressor starts and tries to draw more than 15A.
  • I use a Sterling 400A Alternator to Battery unit to (1) Keep from melting my new 210A Leese Neville alternator, and (2) Charge the Lithium banks at the proper profile while still charging the lead acid (house and starting batteries) on a proper lead acid profile.


So my total battery system capacity is this:


  • 1000AH of Lithium, made up of 4 x 12V isolated lithium packs.  Each has its own BMS, contactors, temp sensors.  All 4 are bussed together in parallel and live inside under the bed. LFP batteries do not catch fire, explode, or any other bad thing. 
  • I have heating pads with temp controllers under each bank, so they self heat to 45F in case they get too cold under the bed.  A fan turns on to cool them (same thermostat controller) if the cells get too warm under the bed.
  • If one cell in one bank goes south, I can quickly disconnect just that pack, and run with 750AH (3 packs) + my lead acid bank (400AH, 200AH useable)

Lead Acid:

  • The standard 4 x 6V golf cart lead acid pack in the usual place. (400AH total. 200AH usable)
  • The standard 2 x 1100 CCA big lead acid starting batteries. (Starting only)
  • A battery "follower" that charges the starting batteries from the house bank.


Charging sources:

  • 7500 watt Onan Genset (125A max through the Magnum) or shore power (same 125A max)
  • The solar array setup (42A nominal)
  • The new Alternator (210A at 1300RPM, with temperature sensor in case it gets too hot.)  It seems to put out almost 200A all the time.


Total Charging Sources:

  • ~370A at 12.8V


Total Useable house bank storage:

  • Max system is ~1700AH, ~1300AH usable
  • Nominal = 1300AH total, 1100AH usable, keeping LFP 40% to 90%, Lead Acid (400AH total, at 50% 200AH usable)
  • Keeping the Lithium banks in this range almost guarantees > 5000 recharging cycles (~15 years).
  • There are currently 500 cycles on the system now after 4 years (including the cycles when I purchased used from a FedEx IT backup system)


Charging rates:

  • All sources running, all banks operational = 370A / 1100A = 0.34C (great)
  • With one lithium bank off-line for some reason, Charging rate = 0.45C (still less than 0.5C, so fine)


Other Mods and System Notes:

  • I've modded the rear Air Conditioner to use a "slow start" device, and re-wired it to run off the house bank.
  • This eliminates the need to run the Genset while driving (you normally need to do this to have AC).
  • The solar and alternator supply enough of power to keep all banks full while driving under normal conditions. 
  • Lithium cells charge very fast, because they have such low internal resistance
  • Normal the Solar alone tops them up to 95% by noon. If really depleted, the genset can recharge bank to 95% in less than 2 hours.
  • The Lithium banks charge the lead acid banks, and slowly recharge themselves to the proper levels.
  • I can monitor everything with two panels (one up front where I can see it while driving, one in the rear.)
  • BMS changes are made via a phone app if needed.

- John


Edited by StellaTariche
  • Like 2
  • Thanks 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...