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okay welcome to part four of the albot
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project where we're going to be
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upgrading the power supply to our albot
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prototype circuit as you can see here we
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have the Prototype circuit set up on the
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ultimate DIY 3220 point breadboard or 2D
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I have 2D right here this was a previous
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project build that uh you can try out
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yourself if you'd like to if not uh I
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give instruction on how to set up this
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prototype circuit for the albot in
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complete detail on the blog post project
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series I'll leave the
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description uh or the link to the
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below but like I said for this part part
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four we're going to be upgrading the
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power supply and the reason why we want
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to do that is because in part five the
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next part of this uh build series we're
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going to be adding a DC motor as you can
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see I already have it set up here and a
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couple of solenoids so the 2D here has
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an onboard 9vt battery power supply or
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if you're using just a generic uh
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breadboard we've been using a 9volt
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battery supply to provide Power
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for both the Arduino and the MP3 player
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that we installed in part two of the
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project and the uh LEDs that we
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installed on our prototype circuit in
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project so later we're going to want to
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add the DC motor and the
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solenoids but having a single 9volt
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battery power supply isn't going to
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really quite cut it to power everything
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have currently and what we want to add
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on in the future or in the future builds
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so in order to provide the power that we
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will need especially for the DC motor
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and the solenoids we're going to need to
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add a another source or another way to
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provide Power for everything and the way
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that I'm going to be doing it for part
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four here of this project uh build
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series for the albot project I'm going
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to add a secondary power
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supply and what I'm going to use is this
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uh battery pack that holds six ablea
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batteries this one already has the
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batteries uh installed in it and this
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convenient 9volt battery snap connector
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so the six batteries makes up 9 volts
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this particular battery pack has the 9vt
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battery snap connector which in the
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future when installing this inside the
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body of the uh owl figure that we're
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using if you just give me a second I'll
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that so in the future we're going to
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stick everything inside this ow figure
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it's kind of too big to put them all
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into the camera sh sh right now but we
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want to have something that would be
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easily installed inside that Al figure
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and something like this would be fine
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and uh in order to change the batteries
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out in the future it's much easier to
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have something like this or where you
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can just snap that off take this out
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change your batteries and then snap it
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back in and of course these wires will
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be attached to the rest of the circuit
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albot so before I jump into
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this as that was mentioned on
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the blog post for part four of the albot
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project we needed to add a couple of
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jumper wires uh in order to create a
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common ground for the entire uh
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prototype circuit so here we have the
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9volt battery power supply and in part
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one I showed you uh at least from 2D and
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for a generic breadboard if you're using
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that that we connected the plus and
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minus supply of the 9volt battery to the
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here and this is the negative Supply
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here you can see that there's a blue
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jumper wire to connect the rest of this
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uh these points here on this rail here
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I've added a white jumper wire that goes
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from the negative supply of the main
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power rail from the 9volt battery power
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here and this is the negative Supply or
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I've created the negative Supply on this
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rail along here you can kind of see that
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black jumper wire that connects the rest
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of this negative Supply here and all the
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the uh negative uh points that we'll
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make for the other circuitry that will
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add later that circuitry is actually
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hidden underneath this pier sensor right
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now so you'll get to see that in part
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five uh of this build and I've also
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added this other white jumper wire right
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here and it's also connected to the same
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negative uh rail here and
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it's continued throughout through this
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jumper wire to this other negative rail
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on this side where we added the negative
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for both the Arduino and the MP3 player
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and also the uh LEDs so this negative
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Supply rail here that we added in I
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believe either part two I think in part
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two of the build and then this new uh
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connected negative Supply rail that
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we're doing in this part of the project
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and the main negative uh side of or the
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main rail for the negative side from the
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9volt battery power supply is all
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connected so we've created a common
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throughout so just going back over it
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once again this is this black wire here
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is representative of my negative Supply
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from the onboard 9volt battery power
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negative Supply is continued to this
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main power rail here and continues
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through this blue jumper wire all the
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way down to this white jumper wire and
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continued on to this white jumper wire
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jumper wire so both of these white
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jumper wires go to either
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side of this breadboard here this
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negative rail here and this negative
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rail on this side and these negative
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rails are connected all
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down so all of these are connected to
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create a common ground and we need a
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common ground for the uh prototype
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circuit to work properly and all that's
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explained in uh the blog post again I'll
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leave that in the description below for
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this part four of the albot project
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build Series so that was one of the
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first things that we needed to set up
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for this part before we add our
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secondary power supply which again I'm
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using a sixpack of ablea batteries and
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all I will need to do next is that I'll
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the positive to I'm connecting it to
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this side rail and I'm connecting the
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negative to the negative rail for this
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new power supply rail on this side of
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this uh breadboard that we're using on
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this end of 2D so to recap for all that
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we're doing for part four of this build
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is that we are creating a common ground
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so again this comes from the negative
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supply of the 9volt battery it's
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main uh Power rail here on the negative
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rail there's a jumper wire to connect
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here and also this jumper wire over here
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to connect this uh negative rail that we
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set up in the previous parts of the
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build so that all the negatives are
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connected to together to create a common
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ground and then next all we needed to do
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was grab our secondary power supply in
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this case I'm using a six doublea
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battery pack and connecting its positive
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to the positive rail to this new uh
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Power rail that we're creating here and
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I'm connecting the negative line which
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is this black wire from the battery pack
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to the negative rail here so this new
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rail here that we're creating for the
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new uh 9vt battery power supply with the
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six AA batteries is going to create a a
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better more stable uh power supply for
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the solenoids and the DC motor that will
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add in the next part of this build for
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part five so we have our 9vt battery
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power supply that we set up in part one
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of the project we have our secondary
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9volt battery power supply that includes
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that uh is made up of six AA batteries
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here and this is the rail that we're
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going to use for the DC motor and the
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two solenoids later in the
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project and we still have our this is
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5vt power supply rail that comes
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directly from the 5vt supply of the
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Arduino and again the Arduino we hooked
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up to the 9vt battery power supply
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here so that's all we're doing for part
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four I just wanted to create this quick
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video in order to kind of explain
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verbally what we're doing you can get uh
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the complete instructions for this part
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of the build and for the previous parts
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of the build uh down in the links down
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in or in the links down in the
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description below I'll leave that for
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you so it's easier for you to find where
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all that is so next up we're going to be
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adding this DC motor and the two
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solenoids and uh then we we move on from
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there to work our way into
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completing the albot project and
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hopefully sometime soon we can add all
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of this stuff inside this guy here so I
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want to thank you for watching and uh
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stay tuned for part five of the albot
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project where again we'll be adding the
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mechanical movements for our albot
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prototype circuit the DC motor and the
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two solenoids so I'll see you next time
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take care and remember to keep at it and
