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hello i'm lewis and this is diy machines
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and in this project i'll show you how
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you can build your own smart chessboard
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for both local and online remote play
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though this board has a great single
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player mode
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if you build two and bond them together
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digitally you can then
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send one to a friend or loved one so
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that you can play chess together
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over the internet with real chess pieces
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and only a few seconds delay
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it's a great way to share some time and
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to connect with people
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who are physically distant
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this 3d printable chessboard has plenty
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of tricks up his sleeve
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such as checking that you play by the
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rules and
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warning you when you don't it can also
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suggest
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your next best move if you want
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it also contains a formidable computer
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opponent
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to play against thanks to the internal
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raspberry pi
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and i think it looks super cool when
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played in the evenings
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except for the electronics it is
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entirely 3d printable
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the leds beneath the playing surface
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communicate
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a lot of information about the game to
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you whilst
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also creating a very cool effect by
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underlighting our chess pieces
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the clear ones were printed on my elegu
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resin printer
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and look great the others are printed on
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a traditional
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ftm printer the smart chessboard is
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powered by usb
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you can plug it into the mains when
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you're indoors
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but can also enjoy many hours of
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untethered play
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outside or on your coffee table using a
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common usb battery pack
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this project has been kindly sponsored
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by pcb way
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a great place to source your own pcbs
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more about that later
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as feature rich as the smart chessboard
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is
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it's actually made from very few
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components you'll need some filament for
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the 3d printed parts
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as well as some leds you'll need the
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sort where you get
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30 per meter on the roll a raspberry pi
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and micro sd card
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oled screen an arduino nano a logic
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level converter
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10 six millimeter push buttons two
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wiring blocks
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a usb dip board and some bolts
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as always you'll find a list to all of
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these parts and where you can find them
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online
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down below this video and on this
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project's page at my website
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we will need to start by printing the
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four main parts of the base assembly
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i printed mine in a wood infused pla
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and added a brim to help with the bed
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adhesion
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i put links to where you can find the 3d
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printable files in the description below
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there is no need for support when
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printing these parts
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or any of the others for this project
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once printed they are then simply glued
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together
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ensure that they are pressed together
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firmly whilst the glue sets
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the last one is best added from
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underneath
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next we will add the leds to the main
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surface of our chessboard
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for this you're going to need to cut
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eight lengths of eight leds from your
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roll
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cut straight through the center of the
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solder pads don't worry if you find that
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one of your cuts has solder on the joint
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you can still cut through this just like
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the others now with our lengths of leds
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cut
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you should add some solder to the three
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pads at both ends of each strip
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this will make attaching wires to these
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much easier
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later we will wire our leds
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in a zigzag pattern going back and forth
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across the surface of the chessboard
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you'll need to pay close attention to
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the arrows on both pieces
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i've put some arrows here on the 3d
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print which need to match up with the
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arrows that you'll find
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going along the strip of your leds the
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arrows found on our strips of leds
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represents the direction that the data
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takes as it moves
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from one pixel through to the next to
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the first strip
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in the bottom right corner we'll add a
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set of three 28 centimeter long wires
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they can be trimmed in length later you
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can then slide the strip
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into position being careful not to catch
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any of the leds
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as we continue to zigzag up through the
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chessboard
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we'll use five centimeter long wires to
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join each of the returns
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i found it easiest to prepare 21 of
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these wires
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before adding them to the board keep
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repeating this
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for the remainder of your strips
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remembering to pay attention
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to the directional arrows on the printed
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board and your leds
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and be careful with your shoulder joints
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when you find yourself at the end of the
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last led strip
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attach a couple of 16 centimeter long
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wires to only the
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5 volt and ground connections
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you can then go ahead and print the four
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sections of the playing surface
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and pop those into place temporarily
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by the way if you prefer to follow a
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wiring diagram
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as you go through the electronics then
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you'll find a link to this one that i've
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prepared
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down below the video but don't worry
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i'll continue to step through the
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remainder of the electronics now
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next we'll turn our attention to the
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main control panel
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i printed mine in both gray and white
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filament and changed color after just
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five layers
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after you 3d printed one of your own we
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can glue into position
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10 of the small tactile switches you'll
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need to orientate the switches
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so the legs run from side to side along
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the top and along the bottom like so
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take care when gluing the switches from
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behind that none of the glue finds its
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way to the front
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once dry we can then set about to
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connect all of the ground connections
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of our 10 switches together in series
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one after another start by connecting a
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13 centimeter long wire to this leg
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on the switch for a1 we'll then use
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several shorter lengths of wire to
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banning hop between
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each of the switches connecting their
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grounds together
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use a 5 centimeter wire to go around
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this first return
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and an eight centimeter wire to go
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around the second return
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to be able to connect each of our
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buttons to the arduino
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we'll need to add one more wire to each
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of them
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now you can either label these as you go
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along or use the continuity feature of a
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multimeter
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to figure out later solder an additional
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wire to each of the buttons
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following the suggested lengths shown
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here once these have all been attached
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you can thread them through these hoops
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to help keep your work nice and tidy
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now we can take our arduino nano and
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begin to connect to it the work which
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we've done so far
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if you decided to use a multimeter
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instead of labeling your wires earlier
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you need to set it to its continuity
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mode and then connect one probe to the
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common ground
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and then the other probe to an unused
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button wire
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you can then press each of the buttons
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in turn until you find
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the one which will be shown by a reading
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on your multimeter
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and more than likely a beeping noise
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okay let's start connecting our buttons
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to the arduino
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the button a1 connects to pin d5
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button b2 to pin d6
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button c3 to d7 button d4
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goes to arduino's d8 button
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e5 to d9
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f6 to d10
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g7 to d11
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h8 to d12
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the wire coming from ok is connected to
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a1
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and the wire coming from hint is
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connected to d3
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then the button's common ground wire can
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be connected to any of the three ground
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connections
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on the arduino next up is the back
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lighting for our control panel
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for this you should prepare and tin free
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strips of two leds
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solder a trio of 15 centimeter long
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wires to the first led strip
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then eight centimeters led strip four
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and a half centimeters
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led strip and the final 14 centimeters
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after you have printed the led's mount
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we can then pass the first pair through
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and stick in place with its
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self-adhesive backing
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repeat this back and forth controlling
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the arrows on the print match the arrows
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on the led strips
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to connect these leds to our arduino the
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center digital wire heading into the
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first strip
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is to be connected to d4 we can also
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take the opportunity now
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to connect the data in wire going in at
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the bottom of our chessboard to our leds
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to pin a5 on the arduino nano
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whilst we have our soldering iron still
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hot we can add some additional wires to
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the arduino
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sold at a 15 centimeter long wire to
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each of the arduino serial pins
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these are marked as tx1 for transmit and
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rx0
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for receive attach a 7 centimeter long
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wire to both the 5 volt
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and one of the unused ground connections
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we can now glue the led assembly for our
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control panel
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onto the rear of the buttons you'll find
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a notch in one
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and a protrusion in the other which are
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there to help you align them
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just use some glue of your choice to
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seal them firmly together
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to bring together all the five volt
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connections and all the ground
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connections
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we can use our two wiring blocks you'll
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need to connect
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both the 5 volt power lines coming from
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either ends of our chessboard leds
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the 5 volt line from the arduino nano
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and the 5 volts from the control panel
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leds
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to one of our blocks and to the other
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block connect both the negative ends of
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our chessboard leds
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the arduino nano and our control panel
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leds
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before we can fix this part in place you
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should thread the 14 centimeter wires
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coming from the end of our control panel
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led run
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through this little tunnel at the end of
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our board
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you can now fix the control panel in
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place
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using four of your m3x6 bolts
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we now find ourselves a great place to
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test both the buttons
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and the leds which we have installed so
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far to do this
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we'll upload a simple test script to the
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arduino nano
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temporarily and see what happens
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your computer's usb power supply and the
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arduino nano
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are not able to provide enough power to
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light all of these leds at their full
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brightness
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so the code will limit their brightness
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for now but don't worry
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they will be much brighter later next up
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is adding the ability
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to power our chessboard from outside the
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board using a usb
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connection you'll need to solder a 12
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centimeter wire to both the ground and
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power connection on your usb
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board this can then be held in place
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by two m3 by 6 bolts
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now you can connect the positive and
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ground wire coming from our usb board
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to their respective terminal blocks
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along with the otherwise
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we can now connect an external usb power
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supply to our board using our new port
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and you should find all the leds light
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up just as they did the first time
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around
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to illuminate the coordinates around the
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edge of our chessboard
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we can add a couple more strips of eight
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leds
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these strips are going to need to turn
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around a very tight corner on your board
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so use a two two and a half and a three
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centimeter wire to join the two together
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this will help later on when you put
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them in place
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once you've added these you can join the
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first one to our wires coming through
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the tunnel
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next to our control panel
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pass the strips carefully through the
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tunnel in the first trench
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go around the corner and then pass the
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far strip through the other tunnel
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you can then use some glue to help keep
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your leds
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roughly level and in line with the
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squares of the chessboard
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reconnecting the usb power supply to the
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outside of the board
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will allow you to check the leds again
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and this time
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you should see that these ones that
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we've added around the outside of our
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board
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join in with the animation great work so
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far
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now quickly before we continue i want to
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take a moment
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to thank all the awesome people who've
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helped make both this project
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and all my other projects possible here
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on youtube
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first off are the patrons of diy
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machines
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their kind and generous support is used
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towards funding the electronics
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in designing and prototyping these
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projects
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thank you their support has proven very
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crucial
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over the last year and i am and always
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will be grateful for it
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i also want to thank everybody at 3d
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jake
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for kindly providing the filament needed
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to bring this project to life
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now before we start adding the brains in
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the form of the raspberry pi
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to our project we need to upload the
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correct
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final code to our arduino nano
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for the next stage we will install the
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raspberry pi operating system
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onto our micro sd card then we'll boot
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this on the raspberry pi
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so that we can install the python
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scripts along with
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max chess which will be there to referee
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your game
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and stockfish which is the open source
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chess engine which you can play against
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locally now as more people build more of
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these chessboards
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and play with them it's incredibly
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likely that the code is going to evolve
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and improve over time because of this
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i've written out these software steps
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over on my website
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this way futureme can keep up to date as
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the project improves
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so head over there follow the steps of
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setting up the software on your
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raspberry pi
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once you've done that jump back here and
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we'll finish off the last with the
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[Music]
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wiring um
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all that remains now is to connect the
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last of our electronics together
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and uh you then we can start playing
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chess on our chessboard
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you can now connect the wire coming from
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tx1 on our arduino
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to the pin b1 and the wire rx0
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to the pin b2 add a new
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seven centimeter long wire between vb
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and our five volt power block
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and the ground pin and the ground power
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block
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attach some new 12 centimeter long wires
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to
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v8 a1 and a2 on the shifter
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and you'll also need to use just a small
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length of wire
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to join oe to va both on the same board
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in this case
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if you want to learn a bit more about
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using the txs01080
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logic level converter for your own
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projects
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then i recently made a short mini video
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on it
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which you can find up here or a link to
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in the description down below
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turning our attention to the oled
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display attached four
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12 centimeter long wires to the four
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points labeled as
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scl sda vcc
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and ground the only thing left to
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connect now
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is our raspberry pi i'm going to be
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putting a
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dupont style connector onto the ends of
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the wires
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and then using that to connect it to the
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pi this is very easy
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and cheap for you to make yourself and
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i've made another video to show you
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just how easy that is but if you don't
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want to
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or if you have a raspberry pi which
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doesn't have any headers already
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pre-soldered to it
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then you can solder your wires directly
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to the pins
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once you've finished adding all the
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female metal connectors to your wires
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we'll start to insert them into the
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plastic housing
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for this you'll need one which measures
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five by two and
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a single one on its own now the order
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that we insert them does matter
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so i'll step you through which wire
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wants to sit in which channel now
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when looking from the back the top left
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one should be the wire coming from va
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on the logic converter the next one down
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should be the sda wire from our screen
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followed by the scl wire from the screen
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then
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we skip a pin and connect a new wire
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here to the block of ground wires
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on the other side at the top we'll use
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another new wire to connect to the
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volt block
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followed by the screen's vcc wire
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we then skip the third hole but then
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connect the wire coming from a2
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on our logic level converter and this
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is followed by the converters a1 wire
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the remaining ground wire for our screen
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is added
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to its own dupont housing
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fit your raspberry pi inside of the
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chessboard
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using the four m two and a half bolts
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use two entry bolts to hold your logic
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level converter in place
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the screen is then arranged inside its
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3d printed panel from behind
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and held in place with some glue
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[Music]
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the larger dupont connector is then
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fitted so that the wire going to the 5
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volt power block
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is connected to the pi's 5 volt in the
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top right corner
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the lone ground wire for the screen is
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to be connected to the 7th pin down
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on the outside edge just two below our
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larger connector
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the panel itself can then be screwed
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onto the chessboard
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with the last of our m3 bolts
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the last parts which we need to add to
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our chessboard
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are these 3d printed coordinate labels
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these are simply printed and then glued
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into position
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and there you go that's your chessboard
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project complete
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you can now print some pieces of your
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own if you'd like to support the channel
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you can find the pieces that i've used
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available for a small donation
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over on my website or in the description
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below
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don't forget to check out some of the
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other projects such as this hidden shelf
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edge clock
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and if you've enjoyed it please consider
00:19:43
subscribing
00:19:44
or sharing this project with someone who
00:19:46
may like to build one of their own
00:19:48
otherwise until next time ciao for now
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one quick thing before i go that's to
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say thank you to pcb way for sponsoring
00:19:57
this video
00:19:58
personally i'm currently learning to
00:19:59
create my first pcbs
00:20:01
and they have been great to work with
00:20:03
whilst i get to the grips of this
00:20:05
if you've wanted to have a go yourself
00:20:07
at creating a pcb
00:20:08
or if you already know what you're doing
00:20:11
now there's a great time
00:20:12
to try ordering some from pcb way
00:20:15
usually
00:20:15
they offer 10 pcbs for 5
00:20:18
but if you're a new member they'll give
00:20:20
you a five dollar bonus
00:20:22
effectively getting your first pcbs for
00:20:24
free
00:20:25
try them out at pcbway.com you'll also
00:20:28
find
00:20:29
a list of the parts on my website
00:20:33
to power all of these leds at full
00:20:35
brightness
00:20:36
so they will light up in a slightly
00:20:38
lesser
00:20:39
amount no and install the python
00:20:43
programs that i've covered
00:20:46
um
