a lot of time we get questions from viewers and I answer them but here we
got some comments from viewers where they shared some information with me so
I'm going to share it with you right now
I'm Tom Kvichak and this is Toms Trains and Things this channel was
created to help other modelers who are in need of guidance in pursuing their
dream of building a model railroad and today we're going to go over some
comments from viewers where they shared information with me so it would help you
out in your model railroad or in your electronics projects for your model
railroad now we're going to go over a few of them right here
now one of them was from Russ Rassman now he gave me some suggestions before
and I did it on a Q&A and he started opening up and giving me more
information he said why don't you try the pro mini and what I did was I looked
up pro mini and I found one of these boards right here it's a pro mini and
when do they call it the proto snap now this thing right here was about $15 but
you get you get the the pro mini right here which is smaller than the Nano and
should have brother Nanna oh here I have a nano right here on the board here's a
nano right here on the board and here's the pro mini so you can see the pro mini
is just a little bit smaller it's about three three holes smaller than the Nano
but you get the FTDI board on it which you need to do the programming on it and
you get a few extra breakout boards on here there's a push button a light
sensor or an RGB LED and a buzzer right there the thing about it is okay I got
this from Amazon as its distributed or it's manufactured by Sparkfun the only
thing is Sparkfun discontinued this okay I paid 15 bucks for this
the one good thing about it is this thing right here I also paid 15 bucks
for this right here this is an FTDI ft f d TI is the FD TIR ftdi
well anyway it's an F TBI board and you need this to program the micro
controllers that don't have the programming chip on it now the Nano the
uno does but the pro mini some of the smaller boards don't have it on there
but a long time ago I said that I have some Atma I have the the chip that is on
the uno and we were going to build our own uno and to do that you need one of
these right here to program it it's FTD FTDI breakout board and I paid I think
15 bucks for it there this right here cost the same amount it was 15 bucks and
you could find this on my Amazon page it's discontinued sparkfun discontinued
manufacturing them I don't know why maybe because they didn't have enough
sales on them but get them while they last because they're well worth the
money you get two pro mini and you get two FTDI board now you're not going to
need several FTDI boards you could you could break these things off of here to
make it look like this and use them on different minis or micros I think the
micro has has the built-in FTDI on there but anyway this is a good buy right here
it was 15 bucks or 1595 and this was and this stand alone by itself was the same
price that I paid several months ago now another one was let me see
Domenic father when I was having problems with the the Nano he gave a
good suggestion on there about how to use it on the Windows 10 I was having a
problem with it and I said that I contacted the manufacturer they said
they had the wrong firmware on it and they was going to send me some well I
had I purchased a pack of three of them and I finally got it about a couple of
days after I did the Q&A video where I mentioned this on there and then they
only sent me one and it still had the same issue but Dominique gave me a good
idea on it and I saw it in the menu all the time but I never really it never you
know never dawned on me to use it but he said use the old boot loader now
whenever you use in the Nano or anything else that has the conventional boot
loader in there or the conventional chip for programming it the menu items not
going to show up it's only when you have a nano or another type that has a
different chip in it now this one says it has a 340 chip instead of what the
regular chip is and I'm not sure exactly what the regular chip is but this has a
340 and even though you download the driver for the 340 chip you still can't
use it and he said use the old boot loader and I'll bring it up on this
screen over here and show you what it looks like I'll connect this up and show
you what it looks like on there so what I got to do is open this up first
open up Arduino first and I'll bring up a sketch and this is the sketch that I
am this is the sketch that you will see tomorrow so let me I guess so many USB
cables over here hanging on here because each one of the each one of these has a
different different size USB connector this one
has this size that that use you could use on I guess is for one of my external
hard drives that fits in there and this is the Jeff bonza sketch and this is the
one where he uses a 17 LEDs to light up the lights in the building randomly and
I put this on a nano with 11 LEDs but anyway I have that nano hooked up and
I'll bring up the the page right there let me see if we can bring this close up
okay put this in the middle all right now we'll come over here and you can see
board and I'll go to nano and I'll go to port and we'll put it on port eight
you don't see this normally this is atmega328p but this has the atmega 328p
old bootloader and this is what I had to use to upload the program to the Nano
I'm not going to do it because I'm just having a nano on right now but I usually
use a uno but you know this is just to show you if you have if you run into a
problem like that where you have a nano that doesn't work or another one that
doesn't work go over here to and this this doesn't show up when you have a new
no or anything else say see you said you see the processor atma 328p and you have
to click on this one right here okay now let me undo this one and put my
uno in there and i'll show you the difference in the menus okay get my
other USB cable here
and all right nano I'll take the nano off and put it
you know you know port you see port comport five now you see it doesn't have
that menu item in there it was in between the board and the port and so if
you don't have that issue it's not going to show up in the menu so that's an
additional menu item that pops up whenever you have a nano with a
different bootloader or an old boot loader or whatever but anyway thanks for
that information it was great even the people at where did I get that one Ella
GU you know this is Ella GU they didn't even know that that was the case because
they sent me another one so now I have four nanos but all I have to do is
change the bootloader on there now here's one and I forgot to
I'll go to this one here now I talked about this shield the motor shield on
there and I got a few comments on about some other people had some shields and
they said they were they just wanted to know what they would have to do or if I
cut off that piece on there enough and I determined that I didn't have to cut off
the one piece on here when I went to look at the wiring diagram on there what
what you're cutting off on the bottom on that trace is for the V I n now this one
has a jumper on here right here but it's for the VCC the five volts so if I put
this jumper across the two pins this will draw power through the 5 volt pin
to power the chip on here now if I take it off it'll use the
external power on here and go through the voltage regulator that's built into
here to power the chip now standing off you know using the standoffs on all of
these I was able to check to see you know what was going on with heat over
here to see what was going on underneath and being able to take readings on here
without trying to stick things into the the pins up on the top or into the slots
on the top but anyway what I found out was a lot of these pins on here are just
pass throughs they don't connect to anything on the board and if you look at
your wiring diagram if you're familiar with wiring diagrams and let me see if I
could pull one up here I'll pull up Adobe and see if I can bring up a motor
shield revision3 let me see if I can pull up both of them at the same time
let me bring this one up okay and I'll bring this over here or you could see it
excuse me for a minute here and I'll try to bring up mine open and this is motor
shield H was it under M motor motor driver or motor driver motor shield
version 2.2 there we go okay now
and let me get close-up on it here's the wiring diagram for my I didn't want to
maximize out here's the here's bond now here's the jumper right here and see
this only disconnects VCC let me make this bigger here that jumper only
disconnects the VCC so that's the 5 volts right here is the VI and this is
actually the pins coming off of your uno so you can see the only ones that are
hooked up are the ones that are extended out so the reset the VCC the in the two
grounds the pins pin 23 with the voltage in is not connected to anything and you
can see on the other side over here pins 9 through 15 are connected now these
right here I'm not sure exactly what these are on here but these may be the
same thing as what you see over here on the side now let me bring is and I was
under let me see bring it over here and these are other two jumpers so here's a
jumper for the sense now on these there's no way that I could disconnect a
break on here like you can on the uno or the other motor board so and those are
on pins usually on pins 8 and 9 but you would have to go on your schematic to
see and right here where's the brake it doesn't show the brake on here
maybe it's ENB and ene EI
you got to go back and forth and look EI EI EI is 1011 so no it's not that but
anyway on here that's what it is and then this pin VI n is not connected it's
just a pass-through pin but on the Arduino board and let me make it a
little bit bigger then bring it down here this is the this is what you're
cutting here and this is going to your VI n on you on the Arduino board it
everything goes through this is your chip on your motor and here's the extra
pins that are sitting up on top now let me see now see they don't actually show
the Arduino board on here they just show the chip that's on the motor shield but
anyway I'm presuming that everything is going through and everything is
connected through the board because they're using these oops
they're using these six connectors over there six connectives one two three four
they're using these photo right here these four these six right here they're
using these connectors these are the connectors that are up on the board
itself and then these are the headers on the side so a four and five isn't
connected PWM a five and six that's oh
one two three four so that's four five six
there's break there's one and two so this is hi this is pins eight and nine
see they they they mark these one through six one through eight but this
is e if you recognize this this is your digital this is your digital pins and
this is your power or pins over here and you can see most
of these pins are hooked up on the arduino shield except for a couple of
these pins over here but the power this is the power right here and you could
see the VI end is hooked up going through the board that's why you have
this that you could cut this right here and also if you want to on the DCC you
don't need the breaks on there so you could also cut these two on here if you
have the Arduino shield or if you have another shield that has all these tabs
on the bottom of the shield now this is for sensing and you want to have the
sensors connected on there but anyway
that's what I found and I wanted to share that with you and there was
another one that Donald Whitman told me about and it was about a 12 to 24 volt
dimmer that he got from Amazon for two dollars and 36 cents so if you have
those LED light strings and you're paying an enormous price for those
transformers and everything else these dimmers with these dimmer controls will
help you out and let me get one of them ok I got a box of three of them for
about seven dollars and some change but here's what it looks like right here
individually they're two dollars and 36 cents and Don Don sent me a picture of
it he took it apart and everything to show me what it and I took it apart also
to take a look for myself and it's just got a 555 timer in there it's got an op
amplifier in there and some resistors capacitors and potentiometer on there
for 2 dollars and 36 cents per unit so I got three of them I had two but three of
them for seven and some change because the one individual one
was not eligible for prime so since I'm a prime member I got the 3-pack for
seven bucks but anyway these are really good they work I tried it out on my
light strips and you just need an external power supply anywhere from 12
to 24 volts and it will dim and brighten your LED strips so Thank You Donald for
that information now I have three of them here and you get a little a TBD
used to get books and stuff with stuff now you get a little piece of paper that
you can barely see I have to get out my little I have to get out my magnifying
glass to see it but anyway that's what I got for today so thank you very much for
all that information did I get everything here I got oh let me show you
what what's coming out tomorrow okay this is it right here let me get this
other stuff out of the way but anyway this is starting on next week's one but
this is this will be out on Saturday tomorrow and these are ambient light
sensors right here and and you'll see that in the video lesson number five on
Arduino made easy so that's all I got for you right now I'm gonna have some
more stuff coming out I'll have it coming out sporadically I'm
not gonna be on a given schedule for right now we're taking it easy for a
little bit so every once in a while when I get to urge to make a video I'll be
putting out a video but I'll be putting out the Saturday video less than five
and then this is that lesson five is to two videos in one and okay you know it's
a two-parter so you know the second part will be on May the
twelve lessons six were we were gonna actually light up some LEDs with those
ambient light sensors on there and shoutout Monday evening will be there
still like doing that that's my favorite one to do and for those that did the
thumbs down they I didn't get any thumbs down on that last shoutout Monday
evening but when I called them out so go figure but anyway we'll see you don't
forget to subscribe and check out my playlist and if you feel like a
contribute on patreon so thank you very much and we'll see Ya.
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