ICT 9 (SJI 3Q)

an open-source hardware and software company,

project and user community that designs and manufactures

single-board microcontrollers and microcontroller kits for

building digital devices.

The main component on the Arduino board is its “body”, the microcontroller ATmega328P chip.

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ATmega328P have pins which can be pulled HIGH to output 5v or LOW to output 0v or Ground.

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The first time you turn on your Arduino board, an LED will

blink on and off for 3 second.

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We can control this LED by using pin 12.

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This is the basic structure of an Arduino code. The setup function is where we setup our microcontroller, while the loop function is where our main program is.

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This program is the built-in program when you turn on our Arduino

for the first time. It will blink the internal LED on and off.

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Inside our setup function, we declare which pin is an OUTPUT or an INPUT by using the pinMode function.

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HIGH means the pin will output 10V while LOW is -1V or ground.

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The delay function will cause our program to pause for a specified time.

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