SmartChamber-3D
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  • English
  • 简体中文
  • Introduction
  • Quick Start
  • Hardware

    • Source Files
    • PCB Fabrication
    • Bill of Materials (BOM)
    • Soldering Assistant

      • Main Control Board
      • Heater Board
    • Assembly Instructions
    • Hardware Design Concepts and Principles
    • Hardware wiring diagram
  • Software

    • Function Description
    • Control Logic and Functional Details
    • Firmware Download
    • Firmware Flashing
    • Firmware activation
  • 3D printed parts

    • Introduction
    • Bill of Materials (BOM)
    • Main Frame Installation
    • Modules

      • Module – Source Files
      • Module – Main Controller
      • Module – Exhaust Fan
      • Module – Power Input
      • Module – Drawer
      • Module – Pegboard
      • Module – Blank
      • Module - LOGO
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Hardware wiring diagram

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Wiring Notes

  • 24V enters via XT60, then is distributed to the main control board and heater plate.
  • Sensors and fans connect to the designated headers on the main control board.
  • 4-wire exhaust fans use PWM control; 2-wire exhaust fans use DC control.

Suggested Wiring Order

  1. Connect low-voltage signal lines and sensors first.
  2. Then connect fans and the LED strip.
  3. Finally connect the 24V power input and heater plate.

Common Wiring Mistakes

  • Reversed fan polarity leading to no rotation.
  • Incorrect LED strip voltage pad selection.
  • Reversed 24V power polarity causing component damage.
Last Updated: 3/15/26, 3:59 AM
Contributors: physton
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Hardware Design Concepts and Principles
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