Build a Real-Time Parking Slot Occupancy Monitor with ESP32 & 4 Ultrasonic Sensors

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine a dashboard that shows exactly which parking slots are free—no circling, no guesswork. This kit puts you at the centre of a smart-city solution, turning a common campus or apartment parking hassle into a clean, WiFi-monitored system. You’ll mount four ultrasonic sensors in model bays, wire them to an ESP32-S3, and watch the occupancy map light up in real time.

What You'll Build

You’ll assemble a working occupancy monitor that detects vehicles in four bays using HC-SR04 sensors, drives a WS2812B LED strip for red/green status at each slot, and serves a responsive web dashboard via the ESP32’s own access point. The logic is robust against false triggers, and the setup can scale to larger parking areas—a genuine IoT prototype for hackathons, CBSE practicals, or engineering minor projects.

What You'll Learn

• How to interface multiple HC-SR04 ultrasonic sensors efficiently using timed GPIO reads without blocking the ESP32 loop.
• Building a captive WiFi access point and a live web dashboard on ESP32-S3 to stream slot states as JSON.
• Implementing occupancy state machines and sensor debounce routines to eliminate phantom detections.
• Soldering through-hole components onto prototype PCBs and creating a field-deployable unit with a stable 5V rail.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for B.Tech ECE/EEE students building IoT prototypes for Smart India Hackathon, CBSE Class 11–12 students with CS or Electronics electives, ATL Tinkering Lab mentors demonstrating smart city concepts, and hobbyists ready to go beyond blinking LEDs. The project assumes you can follow a schematic and solder, making it a solid stepping stone from Arduino basics to ESP32-based connected systems.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.