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Questions and Answers
The ______ pin controls the LED in the Arduino code.
The ______ pin controls the LED in the Arduino code.
output
The function that configures the pins in the Arduino sketch is called ______().
The function that configures the pins in the Arduino sketch is called ______().
pinMode
The variable ______ stores the state of the input pin.
The variable ______ stores the state of the input pin.
State
The ______ function runs continuously after the setup function.
The ______ function runs continuously after the setup function.
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When the pushbutton is pressed, the output pin is set to ______.
When the pushbutton is pressed, the output pin is set to ______.
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Study Notes
Arduino Sketch for Controlling an Output Pin
- The code defines variables for the output pin (
pin_o: 13), the input pin (pin_i: 1), and the state of the input pin (State). - The
setup()function configures the output pin as an output and the input pin as an input. - The
loop()function reads the state of the input pin (pin_i) usingdigitalRead(). State == 1indicates the input pin is HIGH (pressed), andState == 0indicates it's LOW (released).- If the input pin is HIGH, the
digitalWrite()function sets the output pin (pin_o) HIGH, turning the LED on. - If the input pin is LOW, the
digitalWrite()function sets the output pin (pin_o) LOW, turning the LED off. - This code demonstrates a basic but effective implementation of using a pushbutton to control an LED.
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