Reddit reviews EDGELEC 200pcs 10 Colors x 20pcs 5mm LED Light Emitting Diode Assorted Kit 29mm Lead Clear Round Lamp White Red Blue Green Yellow UV Bright LEDs Bulb +300pcs Resistors for DC 6-12V Lights
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Product Overview: 200 pcs LED Diodes + 300 pcs ResistorsProduct Features: For Each Color ) / 5mm Round Clear Lens / 29mm Long LeadProduct Parameters: Red,Yellow,Orange,Yellow-Green: DC 2.0V; Other Colors: DC 3.0V (IF=20mA) / 0.06 Watts / 2pin / DIP LEDsProduct Parameters: Luminance Brighter Up To +20% / 30° Viewing Angle / Single LED Diodes Wight: 0.29gAccessories: 200pcs 430ohm + 100pcs 470ohm (For DC 6-12V) 1/4 Watt Metal Film Resistors Included / ±1% Tolerance
The led/resistor (resistor is the only thing really needed) makes it think the top screen is connected.
LED is colored, i used these:
https://www.amazon.com/gp/product/B077XBFZH9/ref=ppx_yo_dt_b_asin_image_o01_s00?ie=UTF8&psc=1
its fine, easier to ask sometimes.
What led's are you wanting to use?
The fact is what you will need to do is find out how much power the led's will require to run each, than multiply that by how many led's you require. Example:
THEASE LED'S https://www.amazon.com/EDGELEC-200pcs-Emitting-Assorted-Resistors/dp/B077XBFZH9/ref=mp_s_a_1_5?ie=UTF8&qid=1541525214&sr=1-5&pi=AC_SX236_SY340_FMwebp_QL65&keywords=led&dpPl=1&dpID=51r07AcVK3L&ref=plSrch
Use 20ma each. So if you use 70 of them it will be 1400ma or 1.4 ampre just for the led's. The micro will require a quarter amp. And then you will need transistors to turn the led's on and off because the micro can not source them and lastly power limiteing resistor loss. So my best guess you will be looking at a 3 amp 5v power supply to run this project using the items I listed.
And YES you can wire the power supply in parallel so one plug can power the entire project.
You can look around and find better led's, or use less of them, etc. I just used this as an example. That's all. Hope this helps. Let me know if I can assist you any farther.
P.s. that math is if all the led's are on at the same time!