Build an Offline Voice-Controlled Smart Home with Raspberry Pi 5, Vosk NLP, and MQTT ESP32 Nodes

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 telling your room, “Turn off the fan and dim the lights,” and having it happen instantly — without any cloud dependency. This kit walks you through building a voice-controlled smart home system using a Raspberry Pi 5 running Vosk offline speech recognition, which interprets natural language and sends commands over MQTT to ESP32 relay nodes controlling real appliances.

What You'll Build

A fully functional, offline voice-control network for your home. You'll have a Pi 5 hub that listens continuously, understands spoken commands like “switch on the living room light” or “set study mode,” and wirelessly triggers the correct relay via ESP32 endpoints. The system works even without internet, with local processing ensuring privacy.

What You'll Learn

• Deploy Vosk offline speech recognition on Raspberry Pi 5 and configure it for Indian English accents.
• Design natural language intent mapping to convert spoken phrases into appliance control actions.
• Set up a local MQTT broker (Mosquitto) and program ESP32 clients to subscribe to command topics.
• Wire and safely control 230V AC appliances using 5V relays and ESP32 GPIOs.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for B.Tech ECE/EEE students building IoT projects, CBSE Class 12 students with advanced robotics interests, and hackers in Smart India Hackathon problem statements involving home automation. It's also ideal for ATL Tinkering Labs and hobbyists from IIT, NIT, VIT, or BITS who want a serious, offline-capable voice-control system.

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.