DIY Bomb Prop with Digital Timer - Educational Electronics Project #3691864 (License: Personal Use)

This image shows a non-functional, educational bomb prop constructed from rolled paper tubes bound with black tape, featuring a custom PCB with a red LED digital display reading "7:55", a pushbutton, and multicolored coiled wires. The circuit appears based on an ATmega328 microcontroller, simulating a countdown timer often used in film, theater, or robotics demonstrations. All components are safely assembled for demonstration purposes only.

Used in educational contexts (STEM labs, maker fairs), film/theater prop design tutorials, or electronics hobbyist blogs to illustrate safe simulation of dramatic devices. Matches user intent for “how to build a fake bomb timer,” “Arduino countdown prop,” or “safe explosive prop for school projects.”