Use a SIM ejector tool or paperclip to gently remove the SIM tray. Take out the SIM card and inspect it for damage, such as ...

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Abstract: Optical fiber sensors, known for their small size, lightweight, and resistance to electronic interference, are widely used in various applications, including medical vital signs monitoring ...

Abstract: This project introduces an innovative IoT-enabled automated pet feeding system, providing pet owners with a reliable and convenient solution for maintaining regular feeding schedules and ...