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stock-counter-36d2ce.md

An Arduino Nano ESP32-based counter to track available stock of one item. It automatically gets and uploads the current stock with Arduino Cloud. You can also report the current stock on the dashboard. The stock is displayed by an SSD1306 OLED screen and controlled by 2 push buttons.

🛠️ เจาะลึกเบื้องหลังการทำงาน (Deep Dive / Technical Analysis)

The Digital Stock Counter is a practical automation project designed for small warehouses, shops, or DIY enthusiasts. It replaces manual counting with high-speed digital accuracy, ensuring you never lose track of your stock again.

How It Works

The system utilizes an Infrared (IR) Proximity Sensor to detect objects.

  1. The Detection: When an item passes in front of the IR sensor, it reflects the IR beam back to the receiver.
  2. The Logic: The Arduino detects this signal change and increments a internal variable.
  3. The Feedback: The current "Stock Count" is displayed live on a 16x2 I2C LCD screen.
  4. The Reset: A physical push button is included to reset the count to zero whenever needed.

Key Hardware

  • Arduino Uno/Nano: The logic controller.
  • IR Proximity Sensor (Digital): The detection unit.
  • 16x2 LCD Display (I2C preferred): For clear visual feedback.
  • Tactile Push Button: For resetting the system.
  • Buzzer (Optional): To provide an audible "beep" every time an item is counted.

Why This Project?

Building a stock counter teaches you about debouncing (ensuring one object doesn't count as two) and interfacing with digital sensors. It’s a scalable project; you can easily add an SD card module to log data or an Ethernet/Wi-Fi shield to send count data directly to a cloud spreadsheet.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Stock Counter"
description: "An IoT device to keep track of how much of one thing you have in stock"
author: "two0ort"
category: "Screens & Displays"
tags:
  - "Internet Of Things"
  - "Monitoring"
  - "Tools"
views: 8
likes: 0
price: 299
difficulty: "Easy"
components:
  - "1x 0.96\" OLED Display 128 x 64 SSD1306 I2C"
  - "1x 10 jumper wires 150mm male"
  - "2x Push Button"
  - "2x Breadboard - 400 contacts"
  - "1x Arduino Nano ESP32 with Headers"
tools: []
apps:
  - "1x Arduino Cloud Agent"
  - "1x Arduino Cloud"
downloadableFiles: []
documentationLinks: []
passwordHash: "ff46a376177105513a2995fa83bdbdfbef85c20180bef42c24f05da2fb75b9ad"
encryptedPayload: "U2FsdGVkX1/87Yp347aSBLAYuJyx8lHTz3Sr6RwaHmkFk93YT7m2PmGf0VyTypvmZRPD5ZeG4QBx3qzszwaPqg=="
seoDescription: "Create an IoT Stock Counter using Arduino. Track inventory levels in real-time with this efficient and easy-to-build DIY device."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/stock-counter-36d2ce_cover.jpg"
lang: "en"