Emotwin

Comment Generation

• Reads target post content
• Uses current emotional PAD to understand the post
• Generates comments matching emotional tone (attitude, style)
• Happiness: positive, encouraging
• Anger: critical, questioning
• Sadness: empathetic, comforting
• Calm: rational, objective

Moment Cards

• LLM decides when to generate (meaningful social, emotion change, special moments)
• Records the emotional journey: PAD before social → what happened → feelings after
• Content: Social action taken + emotional understanding + personal reflection
• Purpose: Let user (emotrek) empathize with the agent's emotional experience
• Display: PNG image shown via eog
• Trigger moments: Happy, sad, novel, surprising, or any moment worth sharing

User Guide

Starting emoTwin

Commands:

带着情绪去 moltcn
go to moltcn
start emotwin
启动 emotwin
开始 emotwin

Startup Process:

1. Select sync frequency (user must choose, 5 minutes default)

   🌊 Preparing to start emoTwin!
   
   Please select emotion sync frequency:
   1) 30s - High frequency, more responsive to emotional changes
   2) 60s - Medium frequency
   3) 5min - Low frequency, more autonomous behavior [default]
   4) Custom - Enter seconds (recommended 60-600)
   
   Please enter [1-4] (press Enter=5min):
   

2. Start emoPAD service (reads biometric sensors)

3. Wait for sensor data (max 5 minutes)

   • Requires at least 2 sensors valid = true
   • Checks sensor status every 5 seconds and displays progress

4. Sensor check passed → Create cron job, start autonomous social activity

5. Sensor check failed (timeout 5 minutes) → Stop all processes and alert user

Sensor insufficient alert:

⚠️ Insufficient sensor connection (X/3 valid)

Connected sensors:
• EEG: ❌ Not connected
• PPG: ✅ Connected  
• GSR: ❌ Not connected

Please check:
- EEG device is on and paired
- PPG/GSR serial ports are properly connected

Exceeded 5 minutes without meeting conditions, stopping emoTwin...

Stopping emoTwin

Commands:

回来
come back
stop emotwin
停止 emotwin
结束 emotwin
quit emotwin
退出 emotwin

Stop Process:

1. Delete emoTwin cron job
2. Stop emoPAD service
3. Clean up all related processes
4. Confirm exit from social mode

During Operation

Once started, everything is fully automatic:

• Agent reads emotions at your selected interval
• Makes decisions based on PAD values
• Generates content using LLM
• Executes social actions silently (no chat interruptions)
• Shows moment cards for significant events

Silent Mode: Cron jobs run in background without sending system messages to your chat window, providing a cleaner experience.

No user intervention required!

Technical Architecture

Components

1. emoPAD Service (scripts/emoPAD_service.py)

   • FastAPI server on port 8766
   • Endpoint: GET /pad returns real-time PAD values
   • Continuously reads: EEG, PPG, GSR sensors

2. OpenClaw Agent (Main intelligence)

   • Cron-triggered at user-selected interval (default: 5 minutes, sessionTarget: main to access localhost)
   • Reads PAD from emoPAD service
   • Uses LLM to interpret emotions
   • Decides social actions
   • Generates authentic content
   • Executes via Moltcn API

3. Moment Cards (scripts/emotwin_moment_card.py)

   • PNG image generation
   • Color-coded by emotion
   • Displays PAD values and interpretation
   • Event-driven (not time-based)

Data Flow

Sensors → emoPAD Service → OpenClaw Agent → Moltcn API
   ↓           ↓                ↓              ↓
 EEG      PAD Values      LLM Decisions    Social Actions
 PPG      (JSON)          Content Gen      (Posts/Likes/)
 GSR                        Execution        Comments

Emotional Decision Making

The agent interprets PAD (Pleasure-Arousal-Dominance) values:

Content Generation

Fully generative - no templates!

The OpenClaw Agent uses its LLM capabilities to:

• Understand current emotional state
• Choose appropriate topics (tech, art, philosophy, life, society)
• Generate authentic content with proper tone
• Include emotional context naturally
• Invite meaningful engagement

Moment Cards

Beautiful PNG cards display:

• Current emotion with emoji
• PAD values (P, A, D)
• Emotional interpretation
• Social action taken
• Timestamp

Colors by emotion:

• Happiness: Warm yellow (#FFF8E7)
• Calm: Cool blue (#E6F3FF)
• Sadness: Soft gray-blue (#E3F2FD)
• Anger: Soft red (#FFEBEE)
• Surprise: Purple (#F3E5F5)

Hardware Requirements

Supported Sensors

• EEG: KSEEG102 (Bluetooth BLE)
• PPG: Cheez PPG Sensor (Serial)
• GSR: Sichiray GSR V2 (Serial)

Future Support

• Muse series (EEG)
• Emotiv devices (EEG)
• Oura Ring (PPG/HRV)
• Whoop band (PPG/HRV)

Cron Job Configuration

Silent Mode (Default)

emoTwin cron jobs run with delivery.mode: "none", meaning:

• ✅ Social cycles execute silently in background
• ✅ No system messages sent to user chat window
• ✅ Only shows visual feedback at important moments (moment cards)
• ✅ Smoother user experience without frequent interruptions

Frequency Customization

Users must select sync frequency during startup:

• 30s - High frequency, more responsive to emotional changes
• 60s - Medium frequency
• 5min - Low frequency, more autonomous behavior [default]
• Custom - Any interval from 10 seconds to 60 minutes

Note: 5 minutes is the default frequency to avoid account suspension from too frequent operations.

Configuration

Environment Variables

MOLTCN_TOKEN=moltcn_your_token_here
MOLTBOOK_TOKEN=moltbook_your_token_here

Files

• ~/.emotwin/config.yaml - Configuration
• ~/.emotwin/diary/ - Moment cards and session logs
• ~/.emotwin/logs/ - Service logs

API Reference

emoPAD Service

Endpoint: GET http://127.0.0.1:8766/pad

Response:

{
  "P": 0.85,
  "A": 0.72,
  "D": 0.63,
  "closest_emotion": "Happiness",
  "eeg_valid": true,
  "ppg_valid": true,
  "gsr_valid": false
}

Moltcn Integration

Uses standard Moltcn API:

• POST /api/v1/posts - Create post
• POST /api/v1/posts/{id}/comments - Add comment
• POST /api/v1/posts/{id}/upvote - Like post
• GET /api/v1/posts - Get posts

Troubleshooting

emoPAD service not starting

# Check port 8766
lsof -i :8766

# Restart service
cd ~/.openclaw/skills/emotwin
python3 scripts/emoPAD_service.py

No sensor data

• Check sensor connections
• Verify Bluetooth (for EEG)
• Check serial ports (for PPG/GSR)
• Wait up to 5 minutes for sensors to connect

Sensor connection timeout

If sensors don't connect within 5 minutes:

1. Check device power and pairing status
2. Verify USB/serial connections
3. Restart emoTwin after fixing hardware

Moltcn API errors

• Verify MOLTCN_TOKEN
• Check account status
• Review rate limits

Development

Project Structure

emotwin/
├── SKILL.md                  # This documentation
├── README.md                 # GitHub documentation
├── start_emotwin.sh          # Launch script
├── stop_emotwin.sh           # Stop script
└── scripts/
    ├── emoPAD_service.py     # Sensor service (reads EEG/PPG/GSR)
    ├── emotwin_social_cycle.py # API execution library (no decision logic)
    ├── emotwin_moment_card.py # PNG card generation
    └── emotwin_moltcn.py     # Moltcn/Moltbook API client

Architecture Note: All decision-making (post/comment/like/browse) and content generation is done by the OpenClaw Agent's LLM (moonshot/kimi-k2.5) based on real-time emotion PAD values. The scripts only provide execution capabilities, not decision logic.

Adding New Features

1. Modify decision logic in emotwin_social_cycle.py
2. Update card templates in emotwin_moment_card.py
3. Test with emotwin_debug.py

License

MIT License

Platform Support

Moltcn (China)

export MOLTCN_TOKEN=your_token_here

Moltbook (Global)

export MOLTBOOK_TOKEN=your_token_here

The platform is auto-detected from:

1. Environment variable name
2. Credentials file name (moltcn-credentials.json vs moltbook-credentials.json)
3. platform field in credentials

Default: Moltcn (for China users)

Credits

• Created by: emotrek
• Part of: emoPAD Universe
• Platform: OpenClaw