In this video I show you by example how to build your own multiplexing digital chartplotter with autopilot control, AIS, GPS, and Wifi capability using a Ras...

Closed Captions (CC):
[Music]

hey guys so we recently discovered it

was time to change over our navigation

system balachander came with an old b

and g hercules system back in the day

I'm sure it was top-of-the-line it has

an onboard computer crunches all the

data and uses repeaters in the cockpit

to give you all your information but

it's a pretty old system now and some of

the displays were kind of fading one of

them would just completely drop like we

would have our depth and then all of a

sudden we couldn't read our depth and it

was it getting a little scary we decided

it was time to change it up so we

completely got over the old system and

we had to decide on the system to

replace it there's Meritor on a

Raymarine you know BG all the big

systems out there they're pretty pricey

installing them is a pretty big job

however a friend of mine was trying to

talk me into going the DIY route with

this Raspberry Pi system that sounded

crazy to me at first but then it was

explained and shown to me and I realized

that it's not a bad option just a little

bit of homework but if you don't mind a

project and you want to get into it

you're gonna save yourself a lot of

money because this is a great system and

it seems pretty reliable so with this

system you can use your existing

instrument if you have an existing

masthead unit depth sounder speed up

foreground instruments as long as they

output an enemy a signal you can input

that data into the Raspberry Pi which

will multiplex that data out is a stream

and then you can broadcast that through

a Wi-Fi signal out to your tablet or

your PC or your phone or you can just

run your full navigation system right

off the Raspberry Pi because it's

essentially just like an on-board

computer that's running your boat for

you it's pretty neat we got it working

and we like the results so far so I'd

like to share this with you guys and

maybe help you oh because if you were

thinking about going the cheap route

you'll kind of get an idea of how

complicated this is and whether or not

it's something you want to get into or

if it would be better for you to just go

out and buy a full package system and

install one of those so let's get

started and I'll show you how I install

the Raspberry Pi system with open

plotter in my nav station as our onboard

computer in this video you'll learn how

to build your own Wi-Fi multiplexer with

chartplotter autopilot control AIS and a

live enemy a zero 183 or nmea 2000 data

feed for all your sailboat data and use

it with your phone iPad Android or

Windows tablet or laptop I've included

links to all of the online sources I

used in the show description below and

most of the parts that you need are

available

Amazon so you'll need existing boat

instruments that can output enemy age

zero 183 enemy a mm or C talk data

you'll need some marine grade wiring a

Raspberry Pi 3 or greater a microSD card

with 16 gigabyte capacity or greater an

HDMI monitor that operates on 12 volts I

mounted a small 7-inch touchscreen one

in my nav station one or more serial 2

USB adapters preferably one with TX and

rx that's input and output and other

adapters now Don's depending on your

particular situation oh and of course

the keyboard in a mouse so this is a

Raspberry Pi when your Raspberry Pi

comes you'll notice that it looks like a

little computer that's exactly what it

is it's like a little computer

motherboard you'll notice that on this

unit there's four USB ports there's an

Ethernet connection port there's an HDMI

connection port and a mini USB port that

you'll use when you power the Raspberry

Pi but most importantly right on the

back there's kind of a little metal

pocket and that's where the SD card goes

so your SD card is basically your hard

drive in this computer and all the

information that you're going to use

your operating system is stored on this

SD card so in this case where we're

using open CP n but your entire open CP

n will be stored on this card and all

your charts and everything else that

you'll be using to navigate with alright

so let's open up the console and I'll

show you where I installed the Raspberry

Pi so this is an old GPS so putting GPS

data to my AIS twitch then multiplex is

a is an GPS data back to my Raspberry Pi

what you've got back here in this black

box is actually the Raspberry Pi I just

picked up this little box it's just

right to fit the pie and I mounted it

inside down here this is an active sense

d st - you probably won't need one of

these this is very specific from my

system because when I took out my old

hercules system i was left with the

speed over ground transducer and the

depth transducer which were still good

and i kind of wanted to reuse them but

they didn't work at the same frequency

as our modern-day instruments act a

sense makes this little box here and

what this does is it takes the old

analog data from those old transducers

and turns them into modern enemy a zero

one eight three data and then i plug

that into my pi that's how I get my

depth at my speed

like I said you guys probably won't need

that if you have more modern instruments

than I do and this here is a USB hub you

might need a USB hub if you're plugging

in more than four things into the

raspberry pi raspberry PI's only have

four USB ports so in my case I needed

more than four so I had to pick up a hub

and it's also really important that you

look for a USB hub that's powered the

reason being if you overpower your

Raspberry Pi by plugging a whole bunch

of USBs in you'll get a lightning bolt

symbol up in the right corner and that

means that the pi is having a problem

then it's not getting all the power it

needs anything you plug into this hub

will be powered by its own independent

power source operating on five volts you

can plug this into one of your Raspberry

Pi USB ports and you still have three

good USB ports on your PHA to use for

other things and I just mounted it here

on top of my axis sense DST - so it's

really important if you're installing an

autopilot with your Raspberry Pi that

you get a USB to serial adapter that can

handle both TX and rx so that would be

transmit and receive so one of these

wires is outputting enemy a0 183 and one

of these wires is inputting enemy 0 23

and I'm using this to talk to my auto

pilot when I want the Raspberry Pi to

move my rudder it'll send the adequate

enemy a data to my auto pilot I also

wanted to mention that I found it really

helpful to have a USB female connector

plugged into your Raspberry Pi that is

accessible from outside of wherever you

install the Raspberry Pi this is so that

I can plug in a jump drive like for

instance I had to copy all of my charts

over so that I'd have my charts they

were on a USB stick so this came in

handy something to think about if you're

installing the Raspberry Pi behind a

console like I did first thing you're

gonna want to do before you try out your

Raspberry Pi is to get your operating

system put on your micro sd card my

laptop doesn't have a micro SD card port

but I do have one of the old SD card

ports like this this is a micro SD

adapter you'll need to download your

operating system it's called open

plotter it's open source and it's

absolutely free just go to WWC lucam

that's sa ILO OG com click download and

follow the instructions

open plotter uses a custom version of

the noobs operating system for the

Raspberry Pi which already has open CP n

and everything you need pre-installed

and ready to go so it's very easy to get

started all the documentation you need

including lots of other tips can be

found here on this website make sure you

follow all of the installation and setup

steps found here just click documents on

the main page once your operating system

is installed and everything is connected

click on the open plotter icon at the

top of the screen it's a blue anchor

open plotter should auto detect any

active and MEA signals coming into the

raspberry pi if they're not Auto

detected the wires might not be

connected right or you might have the

wrong serial to USB adapter click on the

signal ke tab to check out your enemy a

streams here you can name them and

direct them and make sure they're being

properly multiplexed once you've

followed all the steps you should be

able to see all of your enemy a streams

from here you can use open CP n as your

primary chartplotter which can be

mirrored out to other devices or you can

download and install open CP N or

download and install your favorite

chartplotter software on any device as

long as it can interpret NMEA 0 183 data

coming in over a Wi-Fi signal and send

data back to the raspberry pi via Wi-Fi

and that device will become your active

chartplotter

so that's it for this week's video I

hope you guys enjoyed it remember that I

included links to all of the online

sources I used to build my PI in the

show description below if you like our

videos please don't forget to subscribe

and if you want leave a like or a

comment because you read them thanks so

much see you guys later