Sovereign Cognitive HID Interface

SynapseDeck OS

Transform your Raspberry Pi keyboard into an AI-powered cognitive interface. Unlimited custom agents via voice or text, 3 input modes, n8n automation, PGP encryption. 100% local processing. Zero cloud dependency.

Custom AI Agents
3 Input Modes
100% Privacy
v28.4 Latest Build
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Choose Your Hardware

Three Raspberry Pi keyboard models. All features included in every package. SynapseDeck OS v28.4.0 with unlimited AI agents, voice control, n8n automation, and military-grade encryption.

ENTRY LEVEL

Raspberry Pi 400

All-in-One Keyboard Computer

  • Broadcom BCM2711 • Quad-core Cortex-A72 @ 1.8GHz
  • 4GB LPDDR4-3200 RAM
  • USB-C (1000Hz) + Bluetooth 5.0 Dual HID
  • Unlimited AI Agents (Voice + Text Config)
  • 3 Input Modes: Predictive, Post-Process, PGP
  • n8n Automation (F5-F12 Hotkeys + Voice)
  • Web Dashboard (React 18) • Multi-Language
  • PGP-4096 Encryption • LED Status Indicators
$299 USD + Keyboard
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PERFORMANCE

Raspberry Pi 500

Professional Grade Keyboard

  • Broadcom BCM2712 • Quad-core Cortex-A76 @ 2.4GHz
  • 8GB LPDDR4X-4267 RAM • Active Cooling
  • USB-C (1000Hz) + Bluetooth 5.0 Dual HID
  • Unlimited AI Agents (Voice + Text Config)
  • 3 Input Modes: Predictive, Post-Process, PGP
  • n8n Automation (F5-F12 Hotkeys + Voice)
  • Extended Context Window (2000 chars)
  • Web Dashboard (React 18) • Multi-Language
  • PGP-4096 Encryption • LED Status • Docker Support
$499 USD + Keyboard
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Ultimate Edition
FLAGSHIP 500+

Raspberry Pi 500+

Flagship Keyboard • Maximum Performance

  • Broadcom BCM2712 • Quad-core Cortex-A76 @ 2.4GHz+
  • 16GB LPDDR4X-4267 RAM • Advanced Cooling
  • USB-C (1000Hz) + Bluetooth 5.0 Privacy Mode
  • Unlimited AI Agents (Voice + Text Config)
  • 3 Input Modes: Predictive, Post-Process, PGP
  • n8n Automation (F5-F12 Hotkeys + Voice)
  • Extended Context Window (4000 chars)
  • Web Dashboard (React 18) • Multi-Language
  • PGP-4096 Encryption • Hardware Kill Switches
  • YubiKey Bundle • Stealth Case • Priority Support
$899 USD + Keyboard
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All Models Include Full Feature Set • No Artificial Limitations • Same Software Stack

Three Cognitive Input Modes

SynapseDeck OS adapts to your workflow. Switch between modes instantly via hotkeys or voice commands. Each mode designed for different use cases—from real-time flow writing to maximum security.

Mode 1: Predictive Flow

Real-time AI-powered typing. Like T9 on steroids—AI learns your writing style, predicts full sentences, and auto-corrects as you type. Text flows directly to connected device with instant AI enhancements. Press Tab to accept, Esc to reject suggestions.

  • ✓ Best for: Fast drafting, emails, messaging
  • ✓ Context window: 500-4000 characters
  • ✓ Latency: <200ms prediction

Mode 2: Post-Process

Write first, transform later. Type naturally without interruptions. When done, invoke AI agents via hotkeys (Ctrl+Shift+G/F/T...) to transform: grammar fix, formalize, translate, summarize. Text is processed locally and replaced instantly.

  • ✓ Best for: Documents, code, creative writing
  • ✓ 10 default agents + unlimited custom via voice
  • ✓ Latency: <500ms transformation

Mode 3: PGP Stealth

Military-grade encryption on-the-fly. Display random decoy characters on screen while transmitting PGP-4096 encrypted text to device. Defeats keyloggers and shoulder surfing. Real message only decryptable by recipient. Toggle via Ctrl+Shift+P.

  • ✓ Best for: Sensitive communications, journalism
  • ✓ RSA-4096 + AES-256 encryption
  • ✓ Air-gapped mode available (offline cache)

Pro Tip: Combine modes within a single session. Use Predictive for fast drafting, switch to Post-Process for refinement, then PGP Stealth for final transmission. Change modes via Ctrl+Alt+M or voice command "Switch to [mode name]".

Infinite AI Agent System

10 pre-configured agents on hotkeys + unlimited custom agents via voice/text. Configure new agents through web interface, voice commands (via connected headset), or conversational AI in settings. No coding required—just describe what you want in natural language.

Voice Control System

Connect headset with microphone. Use wake word "SynapseDeck" to create agents, bind hotkeys, configure settings—all hands-free.

Create Agent
"Create agent that rewrites text in Shakespearean style"
Bind Hotkey
"Bind Ctrl+Shift+K to Shakespeare agent"
Configure Workflow
"Create workflow: translate to Spanish, send via Telegram"

Default Hotkey Agents (Ctrl+Shift+Key)

Grammar Fix +G

Corrects grammar, spelling, punctuation. Preserves tone and voice. Ideal for emails, documents, and messages.

Formalize +F

Transforms casual text into professional business language. Perfect for client communications and proposals.

Casualize +C

Rewrites formal text in friendly, conversational tone. Great for social media and team chats.

Translate +T

Translates any language to English (or custom target). Maintains nuance and idiomatic expressions.

Expand +E

Elaborates on brief notes, adding detail and context. Turns bullet points into full paragraphs.

Summarize +S

Extracts key points from long text into concise summaries. Perfect for article digests and meeting notes.

Code Explain +X

Explains code snippets in plain English. Ideal for code reviews, learning, and documentation. 20+ languages.

Social Post +R

Adapts text for social media with engaging tone and hashtags. Optimized for Twitter/X, LinkedIn, Instagram.

Quick Reply +Q

Generates professional email responses based on incoming message. Maintains appropriate tone.

Bullets +B

Converts paragraphs into structured bullet points. Essential for presentations and quick scanning.

n8n Automation Engine

Local workflow automation with F5-F12 hotkey triggers + voice commands. Create complex multi-step workflows through visual node editor or voice. Send emails, update databases, post to social—all from keyboard.

F5 Workflow
Email digest from selected text
F6 Workflow
Quick translate + copy to clipboard
F7 Workflow
Save to Notion database
F8-F12
Custom workflows (configure via UI or voice)
Voice Example: "Create F8 workflow: Summarize selected text, translate to Russian, post to Telegram channel DevNotes"

Core Feature Set

Every SynapseDeck model includes the full feature stack. No artificial limitations. Built on Debian Bookworm with custom kernel optimizations for real-time HID processing.

Dual-Link HID™

USB-C (1000Hz, <1ms latency) + Bluetooth 5.0 L2CAP. Auto-switching when cable connected. Connect to 7 devices simultaneously via Ctrl+Alt+1-7.

Web Dashboard

React 18 + TypeScript control panel accessible at pi-ip:5000. Real-time WebSocket updates, agent configuration, logs viewer, system stats. Accessible from any device on network.

Multi-Language Sync

EN/RU/DE/FR keyboard layouts with automatic target device synchronization. Press Ctrl+Shift to switch—both keyboards change together. AI aware of language context.

LED Feedback System

Caps/Num/Scroll Lock LEDs show system status: current layout, AI processing, Bluetooth connection state. No display needed—everything visible via LEDs.

Privacy Bluetooth

Randomized device names per session (KB-A7F2, Input-92E1). Never broadcasts static identity. Anti-tracking by design. Defeats Bluetooth scanners.

Modular Architecture

8 independent modules (System, BT HID, Neural Core, Web API, Health Monitor, n8n, PGP, Metrics). Self-healing watchdog restarts crashed modules in <1s. Never requires full reboot.

Technical Specifications

Hardware specifications for each Raspberry Pi model. All software features available on every device.

Specification Pi 400 Pi 500 Pi 500+
CPU BCM2711 Quad A72 @ 1.8GHz BCM2712 Quad A76 @ 2.4GHz BCM2712 Quad A76 @ 2.4GHz+
RAM 4GB LPDDR4-3200 8GB LPDDR4X-4267 16GB LPDDR4X-4267
Connectivity USB-C + BT 5.0 USB-C + BT 5.0 USB-C + BT 5.0 Privacy
Context Window 500-1000 chars 2000 chars 4000 chars
Cooling Passive Active Fan Advanced Heatsink
Storage microSD (included) microSD + NVMe support NVMe SSD 128GB (included)
Power 5V/3A USB-C 5V/5A USB-C PD 5V/5A USB-C PD
Price $299 USD $499 USD $899 USD

Join the Beta Program

Get early access to SynapseDeck OS. Limited beta slots available. Priority given to developers, security professionals, and content creators.

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