GPIO (General Purpose Input/Output) pins are physical pins on devices like a Raspberry Pi or microcontrollers that allow you to interface with external hardware. These pins are used for sending or receiving electrical signals, enabling the device to interact with sensors, motors, LEDs, and other components. Key Features of GPIO Pins General Purpose : They are not dedicated to a specific function. You can program them for different tasks. Input or Output : Input Mode : Read signals (e.g., from a sensor or button). Output Mode : Send signals (e.g., to control an LED or motor). Voltage Levels : Most GPIO pins operate at 3.3V logic levels. Be cautious: some components (like LEDs or sensors) may require resistors or additional circuits to avoid damaging the pins. Programmable : Controlled via programming languages like Python, C, or JavaScript. Libraries like RPi.GPIO or gpiozero (Python) make interfacing easier. Applications of GPIO Pins Controlling Device...
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