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Showing posts from October 11, 2025

PVC Pipe Coin Sorting Machine

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 PVC Pipe Coin Sorting Machine Introduction: Sorting coins manually can be tedious, especially if you have a large collection. A PVC pipe coin sorting machine is an easy and fun DIY project that helps separate coins by size using simple materials and mechanics. What is a PVC Pipe Coin Sorting Machine? This is a small device built using PVC pipes, slanted chutes, and holes of different sizes . Coins are dropped at the top and roll down the pipe, getting sorted automatically according to their diameter. Materials Needed: PVC pipes of different diameters Wooden or cardboard base Glue or tape for assembly Sandpaper for smooth edges Optional: Funnels or chutes for guiding coins How It Works: Coins are dropped into the top of the pipe system. Pipes and holes are arranged by size. Coins roll down and get collected in separate compartments based on size. Sorting is fast, efficient, and requires minimal manual effort. Applications: Sorting coins at h...

Sound Sensor

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 Sound Sensor 2 A sound sensor is a versatile electronic component that detects sound levels in the environment. It’s widely used in DIY projects, robotics, and automation systems to trigger actions based on noise or specific sound patterns. What is a Sound Sensor? A sound sensor is an electronic device that converts sound waves into electrical signals. It typically consists of a microphone, amplifier, and signal processing circuit , allowing it to detect claps, voice, or ambient noise. Key Features: Sound Detection: Detects audio signals from the environment. Adjustable Sensitivity: Many modules allow sensitivity adjustments for precise detection. Digital/Analog Output: Provides output signals to microcontrollers like Arduino or Raspberry Pi. Low Power Consumption: Suitable for battery-powered projects. Applications: Clap-controlled lights or devices. Voice-activated robots. Security alarms triggered by noise. Sound level monitoring for classroom...