A realistic Arduino Uno prototype on a lab workbench, connected to a PIR motion sensor (HC-SR501) mounted upright, an IR obstacle detection sensor with IR LED and photodiode facing forward, an IR receiver module (TSOP type), and a small IR proximity sensor module. All sensors wired using jumper wires through a breadboard, with status LEDs glowing. Clean educational electronics project, labeled components, top-angle view, high detail, engineering prototype style.
