Private LLM Voice Control Industrial HMI
Build an Industrial Voice-Controlled HMI with Private Edge AI: Arduino Portenta X8 & Llama-3.2-1B
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 a control panel, “Activate conveyor, set speed 60%, open valve 3,” and it responds instantly without an internet connection. This kit lets you build exactly that: a voice-driven industrial HMI powered by a private large language model running entirely on-device. The Arduino Portenta X8 runs a lightweight Llama-3.2-1B on Linux alongside a real-time M4 core that maps voice intent directly to relays, a motor output, and display updates—no cloud, no latency, total data privacy.
What You'll Build
You’ll assemble a DIN-rail-mountable enclosure housing a voice interface that listens via I2S microphone, amplifies spoken responses through a speaker, and shows status on a TFT screen. The Llama model interprets natural language commands (e.g., "start pump A," "set heater to 50%") and the M4 translates those to relay actions, PWM motor control, and screen feedback. The result is a fully functional, edge-only HMI suitable for shop floors, test rigs, or smart agriculture prototypes.
What You'll Learn
- Flashing and configuring a Yocto‑based Linux image on the Portenta X8 for edge AI workloads
- Integrating Llama‑3.2‑1B (quantized) with audio capture and text‑to‑speech pipelines
- Writing firmware on the M4 core to map LLM‑parsed intents to industrial relays and PWM signals
- Designing and soldering a robust DIN‑rail system with power management and noise filtering
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta X8 | 1 |
| Portenta Max Carrier | 1 |
| INMP441 I2S Mic | 1 |
| PAM8403 Amp | 1 |
| 3W 8Ω Speaker | 1 |
| 4-ch Relay Module | 1 |
| LM2596 Buck Converter | 1 |
| 2.4in TFT ILI9341 | 1 |
| 1N4007 Diode | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 3 |
| DIN Rail Enclosure | 1 |
| 24V 5A 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 is built for professionals and advanced students working on industrial IoT, factory automation, or edge AI projects. It’s ideal for B.Tech ECE/EEE final-year projects at IITs, NITs, VIT, or BITS Pilani, and for participants in Smart India Hackathon hardware tracks. R&D labs exploring on-premise voice control, ATL tinkering labs with advanced cohorts, and makers prototyping for shop-floor HMIs will find every component purpose-matched.
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 to start a conversation with an AI companion that knows every connection, command, and troubleshooting step. If you need a human, our WhatsApp support is just a message away.
Can I customize the voice commands and the actions they trigger?
Absolutely. The Llama-3.2-1B model is fine‑tunable, and the M4 firmware is open source. You can add commands for extra relays, modify the TFT UI, or change the wake word—the AI companion walks you through exactly where to edit.
Does it need an internet connection to work?
No. All speech recognition and intent parsing runs locally on the Portenta X8. Once assembled, the HMI is fully offline and private—no data ever leaves the device.
What kind of industrial loads can I control with the relays?
The 4-channel relay module handles up to 10A at 250V AC or 30V DC per channel, suitable for motors, solenoid valves, heaters, and indicator lamps. The kit includes 1N4007 flyback diodes to protect against inductive spikes.
Llama-3.2-1B on X8 Linux interprets voice commands. M4 maps intent to relay, motor, and display actions.
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