These LEDs can be made with any LED that needs less than 5 volts to operate and they are really useful when you want to add an LED to a project and don't have a protoboard or want the LED to be right on the Arduinoo.
Step 1: WHat you`ll need
for this project you will need;
- Any LED that needs less than 5 Volts.
- The correct resistor for that LED. You can easily calculate it here.