@solved_science on Instagram: "Arduino can be programmed to detect objects using sensors like ultrasonic or infrared. Once an object is detected, the system immediately triggers an LED light and a buzzer as alerts. This simple yet effective setup is often used in DIY security systems, obstacle detection for robots, and automation projects, showing how Arduino provides affordable and practical real-world applications. #arduino #detects #objects #activatesalerts #tech #knowledge #technology #histo