Experimental project: automatically detect a gun to trigger an alarm without human intervention.

Parts used

1 x Husky Lens https://www.dfrobot.com/huskylens.html?tracking=61357a929f73e
1 x DfRduino https://www.dfrobot.com/product-838.html?tracking=61357a929f73e (it is Arduino Uno v3.0 ATmega328p with robust female headers)
1 x Red Switch https://www.dfrobot.com/product-2352.html?tracking=61357a929f73e
1 x Relay module https://www.dfrobot.com/product-1572.html?tracking=61357a929f73e
1 x microSD card https://www.dfrobot.com/product-1191.html?tracking=61357a929f73e
1 x Siren horn https://www.amazon.com/Sydien-114dB-Industrial-Motor-Buzzer/dp/B07LGV8JXB/ref=sr_1_4?dchild=1&keywords=siren+horn&qid=1631712461&sr=8-4
Jumper cables male-female and female-female
Custom 3d printed case (you can make your own with wood or a generic enclosure)

Source code at https://github.com/ronibandini/GunAway

Anet

A8

No

No

200

20

PLA no support required
Use another colour for columns.