Which of the following function is used to set any pin in the state of HIGH/LOW ?

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Multiple Choice

Which of the following function is used to set any pin in the state of HIGH/LOW ?

Setting a digital pin to HIGH or LOW is done with digitalWrite. This function takes the pin number and a value of HIGH or LOW and drives the pin to the corresponding voltage level, turning connected devices on or off. It’s the straightforward way to control a digital output, such as lighting an LED or activating a transistor. Typically you first configure the pin as an OUTPUT with pinMode; without that, the pin may not reliably switch states. The other options don’t set a pin to a fixed HIGH or LOW: digitalRead reads the current pin state, analogWrite outputs a PWM signal on pins that support it (not a fixed high or low), and pinMode only sets the pin’s mode (INPUT, OUTPUT, etc.).

Setting a digital pin to HIGH or LOW is done with digitalWrite. This function takes the pin number and a value of HIGH or LOW and drives the pin to the corresponding voltage level, turning connected devices on or off. It’s the straightforward way to control a digital output, such as lighting an LED or activating a transistor. Typically you first configure the pin as an OUTPUT with pinMode; without that, the pin may not reliably switch states. The other options don’t set a pin to a fixed HIGH or LOW: digitalRead reads the current pin state, analogWrite outputs a PWM signal on pins that support it (not a fixed high or low), and pinMode only sets the pin’s mode (INPUT, OUTPUT, etc.).

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