What is a Serial Monitor?  

Here is the hardware list:

• Arduino Board
• Breadboard
• 3 LEDs (all different colors)
• 3 Resistors (220 ohms)
• USB Cable
• Jumper Wires

The serial monitor is the 'tether' between the computer and your Arduino - it lets you send and receive text messages, handy for debugging and also controlling the Arduino from a keyboard! For example, you will be able to send commands from your computer to turn on LEDs.

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