Wiring LED TO helmet

[BigVariable]

Thanks. =]

 

[Macattack64]

ok heres my little LED tut
heres what you'll need

-soilder iron
-soilder
-flux paste (if you want it)
-red and black wire (i used 20 gau)
-resistors 100 ohm
-white LEDs
-switch
-9V
-9V connector

1st you'll need to know that LEDs has a short (-) and a long (+) leg

plus if you look closely theres a small (+) and a fat (-) wire inside the
head

ok now you'll need to set up the LEDs bend a short leg out on one LED then on the other bend the long leg..this is called series

then add flux to one of the legs

then soilded them into series like so

now soilder a resistor to the longer leg which is the +

next soilder the red wire to the resistor then the switch

then soilder the connector to the red wire

now soilder the black wire to the short leg on the other LED

now just add the 9V and thats it

then do the same to the other side and add the red wire to the wire before the 9V and add the black to the black wire, use the electric tape to the exposed wires

Wait... So... Where do the other wires go?

 

[MaShEdPOTaToEs]

what does the resister do?

 

[MC Chris]

what does the resister do?

I assume it limits the flow of electricity throught the wire to the LED if it aint there the LED will fry instantly.

 

[Macattack64]

I believe you are correct... I've blown some light from some toys before when I put them with 9v... LOL... =P... :hyper: :hyper: :$ops!:

 

[FinAeros]

A resistor raises the resistance in a circuit, thus decreasing the current in the circuit.

Voltage = Current * Resistance from Ohm's Law http://en.wikipedia.org/wiki/Ohm's_law

(Edits: PHP's URL link doesn't recognize ' as a valid symbol in a HTML string, so you'll have to C+P the link)

 

[link4044]

Wait... So... Where do the other wires go?

what are you talking about

 

[MC Chris]

:agree:

 

[Demerean]

Aye, without a resistor in there the LED would be nice and burnt out... Learned that lesson in my first AC electronics lab :roll:

 

[Macattack64]

then do the same to the other side and add the red wire to the wire before the 9V and add the black to the black wire, use the electric tape to the exposed wires

Look at the end of Link's tutorial... =\


Link, What would it look like if they were all one unit... All 4 lights?

 

[link4044]

same way...the power the ground will split to eachside

 

[Macattack64]

Wait, What? So the black goes to what?

Can you take the final picture and draw it in?

 

[FinAeros]

The black end goes from the negative terminus of the second LED light to the negative terminal on the 9V battery.

 

[Macattack64]

Oh ok... I thought so thanks for clearing that up...

 

[silvershadow]

can a potentiometer be used instead of a resistor/switch? then you could dim the lights or some thing right?

 

[link4044]

you still need the resistor if not the led is toast

 

[Kiltmanfortytwo]

most LEDs have such a limited range, mainly on-off, that a petentiometer would do absolutely nothing.

Chris

 

[Leadingspartan]

ok heres my little LED tut
heres what you'll need

Link Do i need the crap in the backround of the first pic as one of my supplies? ;-) :mrgreen:

 

[TheBlue]

Leading we really don't need you to repost those pics...alot of people do that and it takes a long time to load and scroll past so should edit your quote of Links pics...just delete all the stuff below where his first pic is.

Just trying to help ;-) .

 

[Kiltmanfortytwo]

I am actually working on stripping down two led headlamps. Very bright and compact enough to fit in the proper spot.