Working With Two LEDs Using Arduino UNO in TinkerCAD Circuits

This project demonstrates working with two LEDs and Arduino in TinkerCAD circuits.

Step 1: Objective

• Blinking of two LEDs (alternating)
• Fading effect of two LEDs (alternating)

Step 2: Components Required

• Arduino UNO (1 No.)
• Breadboard (1 No.)
• Resistor 1k ohm (2 No.)
• LED (2 No.)
• Jumper wire (4 No.)
• USB cable (1 No.)

Step 3: Basic Circuit Diagram

The basic circuit diagram is shown in the figure. It consists of LEDs in series with Resistors. The power is drawn from the Arduino board.

Step 4: Breadboard Diagram

Make the connections as shown in the figure above.

• LED (red): Anode and Cathode to a10 and a11 respectively on the Breadboard.
• Resistor: one end to e10 and another to g10.
• Jumper wire (red): connecting the PIN3 (of Arduino) and j10 (of breadboard)

• LED (green): Anode and Cathode to j20 and j19 respectively on the Breadboard.
• Resistor: one end to f20 and another to d20.

• Jumper wire (green): connecting the PIN6 (of Arduino) and a20 (of breadboard)

• Jumper wire (black): connecting c11 and GND
• Jumper wire (black): connecting h19 and GND

Step 5: Block Code (for Blinking of Two LEDs)

Create Block codes as shown in the figure

Step 6: Block Code (for Fading of Two LEDs)

Create Block codes as shown in the figure

Step 7: Start Simulation

Click Start Simulation to see the action

Step 8: TinkerCAD Circuits

Blinking of two LEDs

Fading of two LEDs