Ok. I just went through and completely planned out this circuit.
Supplies:
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59 - Blue 5mm LEDs (20-30mA) (3-3.2V)
5 - Green 5mm LEDs (20-30mA) (3-3.2V)
63 - White 5mm LEDs (20-30mA) (3-3.2V)
48 - Red 5mm LEDs (20-30mA) (2-2.2V)
9 - 1/2W 330 Ohm Resistors
25 - 1/4W 120 Ohm Resistors
1 - (Unknown) 240 Ohm Resistor
1 - Switch
1 - 19V Laptop Power Supply
1 - Laptop Power Supply Jack
Going through everything I found that I will have:
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9 - Series of Red LEDs
11 - Series of Blue LEDs
1 - Series of Green LEDs
11 - Series of White LEDs
1 - Series of four White and one Blue LEDs
1 - Series of three Blue and two White LEDs
1 - Series of three Red and two White LEDs
*All series contain five LEDs
For all the calculations that I did, I assumed that I will be using a 19V power supply, and running all the LEDs at 25mA (the middle that they are all rated for) and using the highest rated forward voltage.
I used the online
LED calculator to find out the resistors that I needed for each of the solid series of LEDs.
The series made up of:
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Red LEDs need 1/2W 330 ohm Resistors
Blue, Green, and White LEDs need 1/4W 120 ohm Resistors
For all the series of LEDs that are not made up of one single color, I did the calculations by hand, using the information that you provided me.
The series made up of:
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(W)(W)(W)(W)(B) - needs a 1/4W 120 ohm Resistor
(B)(B)(B)(W)(W) - needs a 1/4W 120 ohm Resistor
(R)(R)(R)(W)(W) - needs a (Unknown) 240 ohm Resistor
A few questions that I have:
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1) For the series made up of different colored LEDs; does it matter what order I put them in?
2) For the resistor that I calculated for the three red and two white LED series; how do I figure out what Watt value I should use?
3) How would you recommend wiring each series to the power supply?
4) What will be the best way to prevent a short circuit? Should I use something such as shrink tubing, or is there a better way?
5) Do you know a website that I can buy these components for cheap? I am currently planning to buy my LEDs from Joe Knows Electronics
here
6) With a three prong switch, how exactly do I wire that up in my circuit?
7) When calculating what resistors I would need, I used the highest rated forward voltage for the calculations. Should I have done that? Or should I have picked something in the middle? For example, with a forward voltage rated between 3-3.2V, what value of forward voltage should I use?
Thank you for all your help everyone. Without it, I would not have been able to do this project.