Office Occupancy Tracker Pro Kit with ESP32 + DHT22
ESP32 Office Occupancy Tracker Pro Kit with Direct Home Assistant Integration
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform any office into a smart, responsive workspace. This kit lets you build a wall-mounted occupancy tracker that detects motion, measures temperature, and controls a relay—all without janky MQTT brokers. The ESP32 talks directly to Home Assistant using the native ESPHome API, exposing temperature, relay state, and motion as ready-to-use entities. Automate lights, log occupancy, or trigger alarms based purely on local sensor data.
What You'll Build
A compact PCB‑mounted unit that senses motion via PIR, reads ambient temperature from a DHT22, and drives a 4‑channel relay to switch appliances. The 0.96‑inch OLED shows live occupancy status and temperature in real time. Plug the ESP32 into a USB power supply or the included 5V adapter, and all entities appear inside Home Assistant, no YAML‑hunting required. You’ll have a professional‑grade automation node that can control lights, AC, or any mains‑wired device.
What You'll Learn
- Programming the ESP32 with ESPHome’s native API—no MQTT broker, no extra cloud layer
- Integrating DHT22 temperature/humidity, PIR motion, and relay modules into a single IoT node
- Interfacing a 0.96‑inch OLED over I²C to display real‑time sensor data locally
- Soldering through‑hole components on a prototype PCB, including voltage regulation with the LM2596 buck converter
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| HC‑SR501 PIR | 1 |
| 4‑ch Relay Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 2A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre‑tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step‑by‑step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3‑5 days |
Who This Kit Is For
This kit hits the sweet spot for B.Tech ECE/EEE students who need a capstone or IoT hackathon project—think Smart India Hackathon or a final‑year lab. It’s also ideal for ATL tinkering labs that want to move beyond Arduino into real home automation, and for IIT/NIT/VIT/BITS hostel‑room hackers who want reliable occupancy‑based control. Even CBSE Class 12 pioneers with a soldering iron will find a rewarding challenge.
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.
What if I get stuck during the build?
Scan the QR code on the box for the AI companion—it walks you through every connection and line of code. A WhatsApp backup is just a message away if you need another pair of eyes.
Do I need an MQTT broker to connect to Home Assistant?
No. This kit uses the ESP32’s native ESPHome API to expose temperature, motion, and relay entities directly—zero MQTT configuration needed.
Can the relay control AC appliances like tubelights or fans?
Yes, the 4‑channel relay switches up to 250V AC. For safety, consult an electrician for mains wiring, and always enclose the unit in the provided box when live.
Is soldering experience necessary?
Basic soldering helps, but the included iron and wire, plus the AI companion’s close‑up guides, make this a great way to learn. Every joint is explained step‑by‑step.
Office — ESP32 native Home Assistant API exposes temperature, relay, and motion as entities without MQTT broker.
What's in this kit
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.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items