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Step 15Wiring the LED
Before connecting the LED, be sure that you know which pin is the power pin and which is the ground pin. If you are unsure, consult the images in Unit 2 for guidance.
1. Connect short lengths of black and red wire to the terminals to the left and right of the buzzer, as shown in Figure.
2. Twist together one end of the 390-Ohm resistor with the loose end of the black wire, and twist together the other end of the resistor with the LED's ground pin, as shown.
3. Twist together the loose end of the red wire with the LED's power pin, as shown.
1. Connect short lengths of black and red wire to the terminals to the left and right of the buzzer, as shown in Figure.
2. Twist together one end of the 390-Ohm resistor with the loose end of the black wire, and twist together the other end of the resistor with the LED's ground pin, as shown.
3. Twist together the loose end of the red wire with the LED's power pin, as shown.
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