How to Solder PCB

all right so this is a quick little instructional on how to put your LED lights onto your Pirates head here so first thing you're going to do is grab an LED and you'll notice that one lead is longer than the other LEDs only allowed to voltage to flow in a single Direction LED means light emitting diode a diode only lets voltage go in a single Direction so if you look at the back of these two holes here you'll notice a little positive symbol on these two sets and a little positive symbol on these two sets so you want to make sure that your longer lead goes through this hole so whenever you flip it over it's on the

right hand side now so when you flip it over it'll be on the left hand side so we'll take our LEDs here and we'll just insert them like so and then here we have our long lead going into the left hand hole and whenever you insert these you want to make sure they're flush against the board you don't want them sticking up like this or anything like that unless you intend on laying them over so in this case we're going to have them flush against the board and when we turn them over you'll see that our long leads are on the right on the positive where they should be so just going to go ahead and lay

this down make sure these are pulled up tightly and then I'm going to add a little bit of of flux flux is not entirely necessary but flux is very helpful in allowing the solder to flow and only a little bit is all you need so just a little bit there a little bit there just a little dabble do now when you're applying the solder you want the solder you want the iron to be touching what it is you're working on and you just want to very gently dab your solder onto it and make a little cone or pyramid so I'm going to put a little bit of solder on the iron first and then we'll clean it off just a

little bit sometimes people use sponges and then you'll just come in right like this and you will touch and add your solder to the lead little dab there touch this guy little dad there touch this guy add a little dab and right here add a little dab and we'll get a closeup in just a second here all right so make sure your iron's clean put it back in the safe place where it won't get burned and now if you look real closely you'll see that the solder is not touching from one side to the other and it has a nice little cone shape and then we'll go back at the end and trim it with these so I'm

just going to look at them myself just to be sure just hard to see off camera okay they look good to me all right so positive and negative is important when it comes to LEDs if they're regular light that doesn't matter so this is your battery tray and the battery tray can also be installed in either orientation so if you install it incorrectly then your LEDs won't work so if you look at this board you'll notice that there is this white box outline right here and that outline matches the battery tray with this little box section here or this little blocked off section here so if you install it this way see how it's smooth

you install it this way it'll match up so you want to make sure that matches up that way your positive and negative polarities are correct on your battery tray and then when you see on this side you'll see it they pop out on this side so we'll solder these two points as well and I can't lay it down so I'm going to have to go ahead and trim these leads right now so get yourself a nice pair of flush Cuts you'll get right up on them and just snip them off just like that and just like that now we have nice clean solder joints as you can see nothing is shorting out and your LEDs are

secure so we'll come back here make sure we're installing our battery tray in the correct orientation with the block matching the outline just push that in and lay it down there we go having a little big hand difficulty here all right so both of my posts came through again just going to add a little dab of whoops A little dab of flux on these points

here little bit of flux there a little bit of flux there and again flux is not necessary but it does help the solder flow nicer all right so I'm going to put a little bit of solder on my tip here just to make sure that it makes contact I'm going to touch where I'm going then add a little dab right there add a little dab right

here so as you can see with the closeup we have nice little cones again making sure that we have a good connection with our battery tray nice and clean and we'll go ahead and trim off the excess with our flush cuts a little bit there I like to put my finger over it so it doesn't go shooting off in your eye here you have it so as you can see our battery terminal is connected neatly finally we're going to add our switch so next to our battery tray you can see these leads here they go to our switch here this is our power switch for the LEDs go ahead and install that and as you can see it's already

starting to make a little bit of contact but it's not a good see how I'm wiggling it it's not making a good contact because it's not soldered yet I'm going go ahead and turn that switch off that way we're not getting distracted so with the switch installed I'm going to go ahead and lay it down excuse me and this is going to be a little

tricky install our switch and I'm just going to use my pliers here as a support because it's going to want to fall out cuz the battery tray is a little tall do you want me to hold it um I think I'll just use my hand here so there that is not working out we'll get it little technical difficulty here had I known I would have these clearance issues I probably would have installed the switch before the battery tray all right there we go all right so I just have my pliers holding the switch up into the terminals and I'm going to go ahead and apply my flux to these exposed leads here just a little bits all you

need

okay we'll go ahead and go through and solder these leads together you want to make sure that you don't short these out so they all have to be not touching each other only contact with the board and nothing else so we go ahead and do one here we go

two

three four and five this one could use a little more right here there okay now our switch is attached and we have a functioning board on and

off