Blink

What you will learn

How to write and basic program to control leds and how to uplaod that code to the Arduino.

Bill of Materials

• 1 x Arduino with cable
• 1 x Breadboard
• 2 x Leds
• 2 x Resistors (100 - 400 ohms)
• 5 x wires

Blocks

• Loop
• Led
• Wait

Coding Video

Wiring Diagram

Steps First LED

1. Have the front of the Arduino face towards 1 of the breadboard.

2. Connect a wire from - of the breadboard to a GND pin on the Arduino.

3. Connect a wire from (28, A) to the - of the breadboard.

4. Insert the led's short (-) wire into (28, E) and the led's long (+) wire into (29,E).

5. Connect a resistor from (29, D) to (31, D).

6. Connect a wire from (31, A) to pin 7 on the Arduino.

7. Connect the Arduino into the computer.

Steps Second LED

1. Connect a wire from (40, A) to the - of the breadboard.

2. Insert the led's short (-) wire into (40, E) and the led's long (+) wire into (41,E).

3. Connect a resistor from wiring (41, D) to (43, D).

4. Connect a wire from (43, A) to pin 4 on the Arduino.

Review

• What is an led?
• What is the first block that gets executed in the loop block?
• What does the delay block do?
• What is a breadboard?