Satellite1 Dev Kit

Description

Satellite1 Dev Kit is an open, Home Assistant‑first voice satellite and multi‑sensor platform built from a Core board and a HAT. It is designed for private, local voice control with advanced audio processing and optional environmental sensing, so you can build a custom in‑home voice assistant without vendor lock‑in.

Satellite1 Dev Kit boards (HAT and Core)

Overview

My Implementation

I’m using the Dev Kit as the foundation for local voice control to replace cloud assistants. I plan to pair it with my own speaker and enclosure, and expand it with a mmWave sensor for room‑presence detection as I build out Home Assistant Assist in key rooms.

Device Score Summary

CategoryScoreRationale
Features★★★★☆Excellent audio and sensor capabilities for a dev kit
Interoperability★★★★☆Built for Home Assistant with open hardware
Setup Ease★★★☆☆DIY build and firmware setup required
Cloud Dependency★★★★☆Local‑first design, cloud not emphasized
Vendor Trust★★★★☆Transparent, open platform with community focus
Overall★★★★☆Strong choice for a private, customizable voice satellite

★★★★★ Exceptional | ★★★★☆ Very Good | ★★★☆☆ Good Enough | ★★☆☆☆ Frustrating | ★☆☆☆☆ Avoid

Features

  • Home Assistant‑first voice satellite platform (Core + HAT boards)
  • Advanced audio processing with 4 microphones and XMOS audio DSP
  • 25W speaker amplifier and line‑level audio output
  • Onboard sensors (temperature, humidity, ambient light) and optional presence via mmWave
  • Built‑in Wi‑Fi and Bluetooth for local connectivity
  • Open hardware with expansion connectors and Raspberry Pi HAT compatibility

Specifications

Price$69.99 (Dev Kit)
ProtocolWi‑Fi (2.4GHz), Bluetooth 5.0
Hub RequiredNo (designed for Home Assistant)
PowerUSB‑C PD; recommended 9V/3A (up to 20V/5A supported)
Cloud DependencyNot specified in sources
HA IntegrationHome Assistant (built for HA)
Voice ControlNot specified in sources
Dimensions88 × 88 × 10 mm (3.46 × 3.46 × 0.39 in)
WarrantyNot specified in sources

Home Assistant Integration

Integration Method: Home Assistant (built for HA)

  • Requirements: USB‑C power, Home Assistant instance, and local network access
  • Entities: Environmental sensors (temperature, humidity, light) when available; presence if mmWave sensor is added
  • Setup: Follow the Satellite1 Dev Kit documentation for firmware and HA pairing
  • Notes: Open hardware and local processing are core goals of the platform

Practical Considerations

  • Power budget: Use a quality USB‑C PD supply (9V/3A recommended) to avoid audio dropouts.
  • Speaker required: The Dev Kit needs an external speaker and enclosure to become a finished voice assistant.
  • Optional sensors: Presence requires a separate mmWave sensor module.
  • DIY build: Expect a bit of assembly and firmware setup compared to off‑the‑shelf assistants.

References