Step 1: connect one end of the black wire to GND and one end of the red wire to 5V.
Step 2: connect the other end of the black wire to “-” column on the breadboard and connect the other end of the red wire to “+”column. By doing so, I added power source to the breadboard.
Step 3: connect one end of a resistor to one of the holes in the “+” column and the other end in “a” column. Doing so will reduce the risk of damaging the circuit by controlling the amount of current flow.
Step 4: connect the longer lead of a LED to one of the holes in the same row of the resistor and the shorter lead to one of the holes in the adjacent column.
Step 5: place a switch adjacent to the LED light and bridge the two components with a wire.
Step 6: Finally, complete the circuit by connecting the “-” end of the switch next to the black wire in the “-“column.
And that completes a simple circuit for turning on a LED with a switch!