Infrared Object Counter Kit

Overview

This DIY project builds an object counter. An IR proximity sensor detects each object that passes and an Arduino Nano shows the running count on an OLED display.

How It Works

1. The IR sensor detects an object passing in front of it.
2. The Arduino Nano increments a counter on each detection.
3. The total count is displayed live on the OLED.

Complete Parts List

You Will Also Need

A USB-A to USB-C cable to connect the Arduino Nano C-Type to your computer and upload code — not included in this kit.

Applications

• Conveyor and production counting - count items passing a point
• Visitor counting - count people entering a room
• Sensor logic learning - practise edge detection and counting

Full Build Guide

Step-by-step instructions and code for this exact project are on Project Hub.

FAQ

Do I need coding experience? No prior experience is required - this kit is built around one specific project, and the full code is freely available. See the build guide above.

What tools do I need beyond what's included? A computer with the free Arduino IDE (or ESP8266 board support, where applicable) installed to upload the code. No soldering is required for this build. You'll also need a USB-A to USB-C cable to connect the board — not included.

Can I reuse the parts afterward? Yes - every component in this kit is a standard, reusable part you can use in future projects, not a single-use kit.