Electrical – LED Circuit- Beginner seeks help


I am a beginner in electronics and circuits and I decided to make my first circuit. It is an arrangement that spells SPEC with 5mm LED lights. I familiarised myself with the basic concepts (Voltage, amps, Ohms, resistors, e.t.c.). After some research I created this schematic. Would such an arangement work? enter image description here

The goal:
According to http://ledcalc.com/#calc I set up this arrangement for the letter S (2 leds + 47 Ohm resistor). What I do not know is the way to connect the resistors to the LEDs and in general all the wires. Could someone help me with a small diagram?

enter image description here

Best Answer

As you calculated, with 5V, you can only power 2 leds in series. For multiple leds, you have to place them in parallel strings of 2, each with its own resistor.

If you are using a computer ATX power supply, you also have 12V available. To save on resistors, you could power 5 + 100 ohm resistor in series with 12V instead of 5V. Then you can do multiple strings in parallel.


simulate this circuit – Schematic created using CircuitLab