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cockroach-laser-killer-8dd306-en.md

If you feel terrified about cockroaches...

You problem is now solved with " Cockroach Laser Killer!

No more embarrassing excuses to run off from them!

Or dream about it...

Video

Okay...this is a simple LDR and Servo interaction. Geta laser pen and "shoot" at the target. LDR activates a servo motor to drop your target down. 3 seconds later it goes up again for another shot.

The main issue is to set the correct threshold of the LDR sensor and avoid unwanted movements due to light conditions.

A 7cm x 7cm box.

The inital setup. When energized, the servo lifts the target.

The target arised and the laser gun!

Creepy!

In the box with a smal breadboard.

EXPANDED TECHNICAL DETAILS

Precision Target Acquisition

This experimental robotics project uses computer vision and laser technology for autonomous pest management.

  • Image Processing Hub: Uses a Pixy2 camera or a Raspberry Pi to identify the specific color and movement patterns of a cockroach. Once matched, the target's (X, Y) coordinates are sent to the Arduino.
  • Laser Gimbal Actuation: The Arduino controls two high-speed servos (Pan and Tilt) to aim a 500mW - 1W laser at the target coordinates.

Safety & Power

  • Low-Duty Firing: The laser is only engaged for short bursts (200-500ms) to maximize burn efficiency while preventing overheating.
  • Safety Interlock: Includes an Ultrasonic sensor to ensure the room is unoccupied by humans or pets before arming the laser tracking system.

ข้อมูล Frontmatter ดั้งเดิม

title: "Cockroach Laser Killer"
description: "Kill this terrifying bug at any distance with a laser ray! (Or dream about it...)"
author: "NerdFatherRJ"
category: "Gadgets, Games & Toys"
tags:
  - "toys"
  - "entertainment system"
  - "kids"
views: 24540
likes: 6
price: 870
difficulty: "Easy"
components:
  - "1x 9V battery (generic)"
  - "1x Jumper wires (generic)"
  - "1x Resistor 10k ohm"
  - "1x LDR sensor"
  - "1x Breadboard (generic)"
  - "1x Arduino Nano R3"
  - "1x 9V Battery Clip"
  - "1x SG90 Micro-servo motor"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
passwordHash: "da8bb7823ccd0c83658686947bc91609da919de5d47981f4273bacdaabe313af"
encryptedPayload: "U2FsdGVkX18KFQH8jZfaYHF0KbPplBevHDLaN1e1hI44ueGpXt33mKujOWLQfxs5faWXCZ0jvVApY6DqVmw4nLMoy/ZkGqqhydiBJ6z7Epg="
seoDescription: "Build an Arduino Cockroach Laser Killer. Use Laser technology to target pests from any distance in this fun DIY project."
videoLinks:
  - "https://www.youtube.com/embed/0aKJtukQ6T4"
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/cockroach-laser-killer-8dd306_cover.jpg"
lang: "en"