Build a Cryptographic Automated Meter Reading Node for Real Utility Data — with Arduino Portenta C33

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

You're engineering a node that reads real power, water, and gas consumption, signs every reading with a hardware-backed key, and posts the payload to a utility API. This is the foundational unit of an AMI (Advanced Metering Infrastructure) network. Whether you're prototyping for a smart grid rollout, refining a hackathon submission, or validating a commercial metering concept, this kit pushes beyond typical maker projects into production-grade territory.

What You'll Build

You'll assemble a DIN-rail mounted unit that continuously monitors a power meter via PZEM-004T, two water / gas flow lines through YF-S201 pulse counters, and current draw with ACS712. An Arduino Portenta C33 timestamps readings with the DS3231 RTC, logs them to microSD, displays live metrics on a 0.96-inch OLED, and finally generates a cryptographically signed JSON packet ready for a utility REST API — all inside an industrial enclosure.

What You'll Learn

• Interfacing multiple energy, flow, and current sensors on a single microcontroller with exact timing
• Implementing secure element-based signing of sensor payloads using the Portenta C33's hardware key
• Designing a noise-filtered power supply and signal conditioning circuit for 12V industrial rails
• Structuring data into a utility-grade API format with CRC checks and retry logic

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This is built for final-year B.Tech ECE/EEE students delivering smart grid capstone projects, engineers prototyping AMI nodes for Smart India Hackathon, and professionals in energy management startups. If you've previously worked with Arduino and understand basic communication protocols, this kit pushes you into secure, multi-sensor industrial data acquisition. ATL tinkering labs will find it too advanced, but research groups at IITs, NITs, or corporate R&D labs will appreciate the precision.

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.