Kids OK, with an adult
DIY project. Children must build this only with an adult (16+ years) beside them at all times. Not suitable for children under 8 years.
Strictly follow the description given with this video.
What is in the kit
- Nano microcontroller board× 1 · ₹345
- Reed switch + magnet× 1
- Active buzzer× 1 · ₹17
- LED + 220 Ω resistor× 1
- USB 5V adapter + cable× 1