Hannah Satellite – Custom ESP32-S3 Hardware Platform for Local Voice Assistants

The Hannah Satellite PCB is a custom-designed, high-performance hardware node engineered for fully local, privacy-focused smart home ecosystems. It serves as an ultra-responsive physical endpoint for local voice processing architectures (e.g., streaming audio via UDP to home automation systems like Hannah Vocie Assistant).

Key Hardware Features

• Processing: Native ESP32-S3 microcontroller support for high-speed local processing.
• Audio Capture: Integrated low-noise microphone array circuits designed specifically for far-field voice recognition.
• Status Feedback: Onboard RGB LEDs for immediate, visual state indication (e.g., listening, processing, mute).
• Power Management: Optimized power routing to maintain clean audio signals and prevent ground loops or supply noise.

Assembly & Components

• SMT Ready: ICs and RGB LEDs are placed for seamless, automated turnkey assembly via PCBWay SMT service.
• Hand-Solder Friendly Passives: All basic passive components (resistors, capacitors, diodes) utilize clear 0603 footprints for flexible DIY hand-soldering or full turnkey production.

Included Files

• Pre-configured Gerber production files
• Pick-and-Place (CPL) and Bill of Materials (BOM) files for automated SMT ordering

Note: Schematic source files are proprietary. Fabrication files are provided under CC BY-NC-ND 4.0 for non-commercial personal use.