Sonic Ray Gun

Two projects by kids

I'm working with a couple of home educated kids and we are having a lot of fun with an arduino. Their first project was a fake-bomb, like you see in the movies, with a LCD countdown timer and a classic "do you cut the red or blue wire?" type problem.

Project two started with showing them the toneMelody example and a small speaker. The quickly found out that if you turn the frequency up to 15kHz it was rather annoying to teenagers. An hour later they had improved the design with a cup, toilet roll and a switch made from a paperclip making a directional sonic ray gun.

Sadly no pictures.

#Conclusion Don't leave kids unattended with an arduino.

Sonic Ray Gun

Two projects by kids

I'm working with a couple of home educated kids and we are having a lot of fun with an arduino. Their first project was a fake-bomb, like you see in the movies, with a LCD countdown timer and a classic "do you cut the red or blue wire?" type problem.

Project two started with showing them the toneMelody example and a small speaker. The quickly found out that if you turn the frequency up to 15kHz it was rather annoying to teenagers. An hour later they had improved the design with a cup, toilet roll and a switch made from a paperclip making a directional sonic ray gun.

Sadly no pictures.

Conclusion

Don't leave kids unattended with an arduino.