WEBVTT

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Components of a robot, learning objective, required components, circuit assembly for

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blinking LED, understanding and uploading the code, debugging and troubleshooting.

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Hey component, Arduino board, Uno R3 model, USB cable, used to power and

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program the Arduino, computer, running the Arduino IDE software, LED, a

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light emitting diode for external circuit testing, one kilo on resistor, current

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limiting resistor to protect the LED, breadboard, a prototyping platform for

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circuit assembly, jumper wires, used for making connections on the breadboard,

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blinking an external LED, step one, circuit assembly, connect an external LED

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to the Arduino using the following circuit diagram, wiring instructions, LED

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cathode to Arduino GND, LED a node plus longer leg to one side of a 220

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ohm resistor, another side of the resistor to digital pin 13 on the Arduino.

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Here is a circuit sketch for your reference, why use a resistor? The 220 ohm

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resistor prevents excessive current flow, protecting both the LED and the

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Arduino, step two, understanding the code, read and understand the code, step three,

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uploading and observing the output, one, click upload in the Arduino IDE, two, the

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external LED should now blink every one second, debugging and troubleshooting,

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if the external LED does not blink, check that the LED is inserted correctly,

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the longer leg is connected to pin 13 through a resistor, verify that the

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resistor is connected in series with the LED, try a different LED or change the

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resistor, the required components and steps to blink an external LED using an

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Arduino Uno, by correctly assembling the circuit and uploading the code, users

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can observe the LED blinking, ensuring proper connections and troubleshooting if needed.