Office CO2 Tracker Kit v2
Office CO2 Tracker Kit v2 – Arduino Portenta C33 TrustZone-Based Air Monitor for Workplaces
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Deploy a professionally-graded CO2 monitor that isolates sensor credentials in hardware, keeping your office air quality data safe from firmware-level tampering. The Arduino Portenta C33’s Cortex-M33 with TrustZone partitions the MH-Z19B sensor keys and MQTT TLS certificates away from application code, ensuring that even if firmware is compromised, secrets remain locked. Build a dashboard-ready device that streams encrypted data to a cloud broker — ideal for workplaces tracking IAQ compliance.
What You'll Build
You’ll assemble an industrial-style, enclosure-mounted CO2 monitor that reports temperature, humidity, pressure, and CO2 concentration to a cloud dashboard via MQTT over TLS. The onboard OLED displays real-time readings, while the secure element ensures only authenticated devices can publish data. Perfect for Green Building certifications, WELL standard compliance, or simply ensuring your team breathes clean air.
What You'll Learn
- Program the Arduino Portenta C33’s dual-core architecture to handle sensor acquisition and MQTT publishing concurrently.
- Implement Arm TrustZone to store cryptographic keys and sensor credentials in a secure world, isolated from normal firmware.
- Configure MQTT over TLS with mutual authentication using pre-shared keys, and integrate with cloud brokers like AWS IoT or Mosquitto.
- Calibrate the MH-Z19B NDIR CO2 sensor and compensate readings with temperature and pressure from DHT22/BMP280.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta C33 | x1 |
| Portenta Mid Carrier | x1 |
| DHT22 | x1 |
| BMP280 | x1 |
| MH-Z19B CO2 | x1 |
| LM2596 Buck Converter | x1 |
| 0.96in OLED | x1 |
| 4.7kΩ Resistors | x5 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| Waterproof Enclosure | x1 |
| 5V 2A PSU | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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
Tailored for final-year B.Tech/M.Tech students (ECE, EEE, CSE) building IoT security capstones, Smart India Hackathon participants developing trusted workplace solutions, and professional engineers prototyping IAQ monitoring for green building projects. If you’re building a corporate air quality dashboard that demands hardware-rooted trust, or experimenting with Arm TrustZone for IoT, this kit accelerates your work — from NIT Warangal to BITS Pilani, and beyond.
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?
The AI companion, accessible via QR code, walks you through every wiring and firmware step with interactive debugging. For deeper issues, our team is available on WhatsApp during Indian business hours.
How is this different from a simple CO2 monitor with a Raspberry Pi?
The Portenta C33’s TrustZone hardware isolates sensor keys, so even a compromised OS cannot extract credentials. A Raspberry Pi lacks this hardware-level isolation, making our kit suitable for enterprise environments needing tamper-proof sensor data.
Can I use this kit for a WELL or LEED certification project?
Absolutely. The logged data proves continuous monitoring of indoor CO2, and the secure MQTT transport ensures data integrity for certification audits. Many green building consultants rely on hardware-secured loggers like this.
Does the kit include cloud broker access or just the hardware?
The kit ships with pre-configured MQTT TLS certificates for a test broker. You can replace them with your own broker (AWS IoT, Azure IoT Hub, etc.) — our AI companion guides the full replacement process.
Workplace Air — C33 TrustZone isolates sensor credentials and keys from application firmware. MQTT over TLS to cloud 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