Door Butler

Interactive voice assistant that helps identifies who is at the door and route visitors

Goals

Wish list of capabilities:

• Smart voice screening (done)
  
• Dialog management (done)
  
• Led status indicator (done)
  
• Prerecorded answers (done)
  
• MQTT (done)
  
• Integration with Home-assistant (done)
  
• Presence detection
  
• Video streaming
  
• Two-way audio
  

Hardware

• Raspberry Pi Zero W
  
• Google AIY voice hat
  
• PlayStation Eye
  

Software

• Node-red to run linux system commands:
  • amixer to adjust volume
  • aplay to play pre-recorded messages
  • arecord to record short utterances
• Node-red also serves as dialog manager and mqtt client
• WIT.AI to process utterances and recognize intents

Installation

1. Install Raspberry Pi OS to an SD card
2. Install Node-Red
3. Navigate to http://hostname:1880 and import the DoorButler flow
4. Create an app with wit.ai

Home-assistant

()