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peanutless-peanut-mm-sorter-homemade-3d-scanner-eb5d61-en.md

I built a 3D scanner that can predict whether peanut M&Ms have peanuts in the center, or are pure chocolate. See how it works in the video below.

EXPANDED TECHNICAL DETAILS

Industrial Food Sorting Automation

This advanced project uses a homemade 3D scanning technique to sort M&M candies based on shape (identifying those without peanuts).

  • Computer Vision Pipeline: Uses a Raspberry Pi Camera and an Arduino-controlled turntable. The system captures a "Profile" of the candy. The Raspberry Pi runs a custom Python/OpenCV script to calculate the volume and eccentricity of the object.
  • Precision Mechanical Diverter: Upon identification, the Arduino triggers a SG90 micro servo attached to a sorting chute, diverting "Clean" vs. "Peanut" candies into separate bins.

Integrated Hardware

  • Backlit Scanning Hub: Uses a diffused LED ring to create a high-contrast shadow-graph of the candy, ensuring the 3D-profile algorithm is not affected by the color of the candy's shell.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Peanut(less) Peanut M&M Sorter - Homemade 3D Scanner"
description: "I built a 3D scanner that can predict whether peanut M&Ms have peanuts in the center, or are pure chocolate."
author: "harrisonm"
category: "Home & Automation"
tags:
  - "food and drinks"
  - "internet of things"
  - "robots"
views: 7280
likes: 6
price: 299
difficulty: "Intermediate"
components:
  - "1x Adafruit Motor Shield V2"
  - "1x Hot glue gun (generic)"
  - "1x WS2812 Addressable LED Strip"
  - "1x Line Laser"
  - "1x 3D Printer (generic)"
  - "1x Wood Screws"
  - "1x Stepper Motor, Mini Step"
  - "1x Raspberry Pi 4 Model B"
  - "2x Box Hinges"
  - "1x Drill / Driver, Cordless"
  - "1x USB-A to B Cable"
  - "1x Camera Module V2"
  - "1x Arduino UNO"
  - "1x Various Boards"
tools: []
apps:
  - "1x Arduino IDE"
  - "1x Raspbian"
downloadableFiles:
  - "https://github.com/hamac2003/PeanutlessMM-Sorter"
  - "https://github.com/hamac2003/PeanutlessMM-Sorter"
documentationLinks: []
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seoDescription: "Build a homemade 3D Scanner to predict if Peanut M&Ms contain peanuts or are pure chocolate."
videoLinks:
  - "https://www.youtube.com/embed/o8dnvQafDV4"
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/peanutless-peanut-mm-sorter-homemade-3d-scanner-eb5d61_cover.jpg"
lang: "en"