กลับไปหน้ารวมไฟล์
sun-tracking-mechanism-for-40w-solar-panel-0c3400-en.md

The idea started many years ago at work when we wanted to build a pin-hole camera to capture the image of the sun spots. So I built a little primitive contraption that was controlled by a PIC to point at the sun as it moves across the sky. My interest slowly shifted to solar energy and how to best capture the short hours of sunshine on a small panel since i don't have a large foot print to install an array of panels. At the same time, the project is helping me save on some electricity bill to light up the apartment.

EXPANDED TECHNICAL DETAILS

High-Efficiency Solar Harvest Orchestration

This mechanical project increases the energy output of a 40W solar panel by up to 30% by keeping it perfectly oriented toward the sun throughout the day.

  • Dual-LDR Differential Analysis: Uses two Light Dependent Resistors separated by a physical "Shade Pillar." The Arduino compares the light levels; when one side is shaded, it knows the sun has moved and triggers the motor.
  • High-Torque Actuator Control: Manages a linear actuator or geared DC motor via an H-Bridge driver. The firmware moves the heavy 40W panel in small increments to maintain a perfect 90-degree angle to the sun's rays.

Safety

  • Night-Cycle Auto-Reset: When both LDRs detect low light (Sunset), the Arduino automatically "Parks" the panel back to the East, ready for the next morning's sunrise.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Sun-Tracking Mechanism for 40W solar panel"
description: "Trackers generate more electricity than their stationary counterparts due to increased direct exposure to solar rays."
author: "LIMPINGLIM"
category: "Sensors & Environment"
tags:
  - "environmental sensing"
  - "energy efficiency"
  - "tracking"
views: 16184
likes: 16
price: 699
difficulty: "Easy"
components:
  - "1x 10A PWM solar charge controller"
  - "2x 12V 7.2Ah AGM Battery"
  - "4x RobotGeek Light Sensor"
  - "1x Electronic Enclosure"
  - "1x Tap & Die Kit"
  - "1x Solar Panel 40W"
  - "1x circle router"
  - "1x Arduino UNO"
  - "1x Dual H-Bridge motor drivers L298"
  - "4x Mini Ball Bearing – 105zz 5x10x4"
  - "2x 12V DC motor with gearbox (3rpm)"
  - "2x panel mounted push-button"
  - "1x Dremel Rotary Tool & drill bits"
tools: []
apps:
  - "1x Autodesk TinkerCad Project Ignite"
  - "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
passwordHash: "ee38ba87ff23bfbc3352aa663fad7edb6007722d7e3e31429d55d30d6fc9e266"
encryptedPayload: "U2FsdGVkX1+LHrzeZ/s9qJmvIH8FcaAWFVsho9PCUNcP4K3PZ8MFQUdzrflBjxZ/JAoGVJANoR3g4GZuMsq3NF/grtqn56vZHOyGuz8NdEAWeqbriT1QDb4C3XD7Z0gXlJxRB/rE1i7uCQoFP2sbbw=="
seoDescription: "Build a Sun-Tracking mechanism for 40W solar panel to maximize electricity production via direct solar rays exposure."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/sun-tracking-mechanism-for-40w-solar-panel-0c3400_cover.JPG"
lang: "en"