First Person View RC Car Racing!! #Helpful Post

in previous years at LTX Jake's

contribution to like incredible

experiences that we've created have been

playing racing games on the 16 K and 10

K ultra wide gaming setups and frankly

they were Smash Hits good job Jake but

this year for our racing experience

we're not content to settle for bezels

or even virtual cars this is next level

my friends what if instead of a video

game car on a screen we could drive

actual cars in VR I mean yeah okay there

there RC cars but like come on close

enough right SiC right

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let's break this down so first we've got

to figure out how to control our

steering servo here with a steering

wheel as well as figuring out how to

control our ESC or electronic speed

controller with a throttle and a brake

pedal and then there's the video stuff

like how do we even mount it what are we

gonna use like there's a lot of

questions here yeah

furthermore getting that video feed to

the headset is another issue so we need

something that's high quality enough

that you can really see where you're

going through it and also low latency

enough but you don't just want to

immediately throw up we're probably

getting ahead of ourselves a little bit

though because before we can do any of

that stuff we need to settle on a

platform or a car there's a lot of

options out there obviously but we need

something that's not crazy expensive

because you know you're kind of cheap we

need something that's gonna be reliable

with good battery life because this is

gonna be seven plus hours for two days

and it needs to be not too big or too

fast because both of those things are

gonna contribute to motion second yeah

if you're like ripping around that fast

like four inches from the ground we want

to keep our vomit quota for lcx pretty

low could it be done now of course it

also still needs to be big enough to

house all the first person view hardware

and I mean ideally be fun to play with

when we're just done this project right

yeah there we go so turns out there was

a bit of a miscommunication Jake and I

define large a little bit differently so

for better for worse we ended up with a

Traxxas Slash

two-wheel drive which would be perfect

for this project if it was oh I don't

know about 30% smaller and okay okay

okay maybe about a fifth of the speed

it's fun though yeah that's fine roll

with this all right all right all right

well one thing I didn't show you is it

has training mode which cuts the

throttle in half you know Jake's not so

bana we're on the same wavelength here

all right it's still pretty quick okay

still probably a little faster than we

wanted sorry David

getting our steering working with the

USB steering wheel was the first real

challenge now we knew thanks to fellow

youtuber RC sparks that there was a

steering wheel that would work really

well for this setup thanks to its simple

design the thrust master Ferrari racing

wheel and thankfully Thrustmaster was

able to supply us with several of them

to tinker with and it looks like with

some minor modifications we should be in

pretty good shape

so with the RC transmitter and the

steering wheel opened up this actually

looks relatively straightforward ish

hopefully knock on wood so the

transmitter just has a potentiometer so

you can see the one behind the steering

wheel right here and then it's got a

second one for the throttle so that's

pretty cool so if the resistance is the

same between this and there we go the

potentiometer here and while the other

one would be in the pedals we'll deal

with that later we should be able to

just move the wires over and yeah

they're different so we're dealing with

ten kilo ohm potentiometers in the

steering wheel and then just five kilo

yeah sorry yeah five kilo for the

transmitter okay so hopefully then what

we can do is find some five kilo ohm

pots that are a similar size to what's

already in the steering wheel because

we'd rather not have to make adapters or

something just to mount the pot so we

can turn the stem on it when we turn the

wheel after a quick trip to the local

electronics store

Jake returned with something reminiscent

of what we previously had although we

could tell some minor modifications were

going to be necessary for the pedals we

weren't able to locally source flat

sided potentiometers in the resistance

that we needed so while you could

probably just drill out the hole in

these little gears we decided to instead

3d prints and replacements as for the

steering wheel the

geometers was really close to fitting

but some cutting and sanding was

required to get it nice and snug in

there we went with a super professional

hot glue mount for now but by the time

we roll this out at LTX it'll probably

be upgraded to jb weld for wiring we

followed along as closely as we could

with our see sparks as guide and it

turned out pretty well although we did

have to swap our petals from left to

right as they were reversed okay so

theoretically if you fire that up turn

three mil oh no way

okay that's the easy one okay sigh you

saw it definitely trying we should try

the calibration thing whoa whoa wake it

so what we're trying to do right now is

calibrate the petals because

theoretically you can set up what I

guess it would be the receiver yeah the

speed control you're ready yeah okay

ready does already press it no no sorry

well it's moving at least so we got the

throw is it enough to get it to go oh

not very fast this might be better

though it's a little slow I feel like we

have less throw than we did in the

controller trigger so the ones in the

control are 180 degrees right see how

yeah blah blah blah and then these ones

are like 270 yeah so what if we cut this

just cut the stoppers out so while Jake

chops up the pedal assembly it's time to

talk about the first person view video

setup now we browsed a ton of different

tutorials and forums for information

about what the best individual

components were for a setup like that

and the conclusion is that it's kind of

like building a PC except rather than

what CPU GPU and ram you should buy it's

which video transmitter receiver camera

antennas headset and batteries and

there's a lot less community consensus

on the benefits of certain parts over

others so at this point it felt like

throwing the company credit card at an

RC shop and validating a bunch of

different stuff ourselves might have

been our only choice that is until we

found out that DJI makes a pretty much

plug and play first-person view camera

called oq sync which when paired with

their racing goggles supposedly provides

a super low latency and high quality

video feed you know I gotta say as much

as I was genuinely looking forward to

cobbling something together and

tinkering with it

given that we're gonna be running this

at a live event with thousands of

attendees I'm actually pretty happy that

we found a premade solution one point

DJI failed to mention to us however is

that see this right here is the receiver

and camera module it actually needs

active cooling otherwise it can overheat

I mean I guess that makes sense given

that this thing is designed to be used

on open air like racing drones but

anyway it's fine because we can just

simulate that airflow with a little 5

volt knock to a fan a 3d printed bracket

and then some of these old Enzo tech

heat sinks okay so now that Jake is

pretty much done with the hack job

behind me I guess it's time for me to

try and find some look it's not I know

it's not gonna be perfect today think

about what we're gonna have to do is cut

some holes in this top but so we don't

maintain it for LTX we're just gonna

temporarily mount it yes because LTX we

want it to be very pretty and pretty is

not our specialty and like think about

it it's not like when you sit in your

car you don't have your dash in front of

the windshield like we'll be able to see

well enough it's not it's gonna be like

right in front Lee look I know look if I

could put it up supercar something sure

Oh hot glue I'm just putting

little bit okay well it has a bracket

you know well now it's hot glue

hopefully right side up - you can flip

it alright there we go that's doesn't

quick that's on there no please don't

hot glue that what's just a little Oh No

just a DAB okay I forgive you for

choosing this car that's expensive

because it's not actually working pretty

darn well yeah yeah easy for you to say

did you pay for it no but neither did

you

yes I did well - Media Group

Incorporated good okay so now the

battery we need the battery yep I'm not

gonna hot glue you at home this is a

lithium polymer battery I would strongly

recommend not hot gluing one of these

anywhere you got to rip it off just

tears the cell in half that's a massive

fire yeah yeah spicy hey nice alright so

the cooling fans going

is it super wide angle yeah actually

holy crap I can see David right now

really from where you are

720p right now so this is the I think

the highest quality setting it looks

pretty good like the lowest latency

setting you mean er no it's the highest

quality well really so the highest

latency okay how's your nausea I mean

the fact that you're moving isn't

helping but do you want to put it on the

ground I want to try it alright to try

this spoils with my labour where are the

pedals this is gonna be kind of

interesting watching me fall over okay I

feel like I'm driving a Jeep like it oh

man no way woah oh my gosh dude the

latency is so low no so we think it's

possible that we can insert an SD card

right here in the occupied and record

straight to this so you guys will see

the full quality haha isn't it sick hey

Jake what's up dude this is so awesome

so cool the graphics the graphics man

it's IRL man I could get like way better

at this with some practice alright

alright alright we can wrap this video I

can go I can go do mine sure ok so

there's definitely still some progress

for us to make before we can deploy this

at LTX but like wow this is genuinely

really awesome I know that this one was

a little bit sparse on the details but

the truth is that this was just proof of

concept we've still got some things to

iron out so the next video is going to

be the detailed guide for how you guys

could do this with similar gear at home

trying out the track and then of course

we're gonna be teasing the full

experience that you'll be able to have

at LTX 2019

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