Gikfun 3mm LED Bulb Light Assorted Kit DIY LEDs for Arduino (Pack of 100pcs) EK8435

today I'm going to show you guys a very simple Arduino project for beginners we're going to get three different LEDs to turn on and turn off in a simple sequence like you see here for this you're going to need an Arduino Uno or similar Arduino board a breadboard preferably with a positive and negative rail like this one for breadboard jumper wires a USB cable for the uno three LEDs of different colors here we're using blue red and green and three 220 ohm resistors now we're using 220 ohm resistors because they seem to work the best with the LEDs we have but you could use different resistors depending on your LEDs and your circuit I've put a link to an inexpensive Arduino kit that contains all these components in the description below so let's first set up the hardware the first step is to establish a common ground to do this use a jumper wire to connect the ground pin on the Arduino to