Fusion Chime Vision is a next-generation smart doorbell system that transforms how you interact with visitors. More than just a chime, it features a built-in display that allows you to greet guests with custom messages, images, or alerts, adding a personalized touch to every visit. Powered by the ESP32 and open-source firmware, the Fusion Chime platform is fully customizable, enabling users to modify, expand, and integrate it into their smart home ecosystem. Whether you want to display notifications, change chime sounds, or automate actions, the possibilities are endless.

The Fusion Chime Vision Doorbell unit, Smart Chime, and optional Display Panel are compatible with conventional doorbell wiring, making installation straightforward without requiring extra cabling or batteries. The entire system can also be integrated into home automation platforms such as Home Assistant and ESPHome, enabling seamless smart home control and automation.

A Smarter Way to Welcome Visitors

Our Fusion Chime Vision system starts with the feature-packed, weather-resistant doorbell unit. Featuring a 2.4-inch customizable display that can show text messages, images, or notifications. A web interface lets you leave seasonal greetings or information for guests to know before they enter your home. When guests arrive, a PIR motion sensor will let you know they’re near, triggering image and audio capture to the doorbell’s internal memory.

Powered by an ESP32-CAM module, the doorbell connects to your home Wi-Fi network and other smart home devices, enabling two-way communication and real-time video streaming. For a more reliable doorbell chime, you can alternatively use the built-in 433 MHz wireless, but a good old-fashioned wired connection works great, too. Installation is made easy with an included snap-fit mounting bracket.

Two other optional components bring even more functionality to your Fusion Chime Vision system: an indoor customizable Smart Chime and a touchscreen Display Panel. These let you have a dedicated hub for all the information the doorbell’s collecting (image, sound, temperature, etc.) or set a custom doorbell chime sound. And, since it’s all open hardware, your ability to tailor Fusion Chime Vision to your home and your family’s needs is almost endless.

Features & Specifications

Doorbell

• Microcontroller: ESP32-CAM
• Display: 2.4-inch TFT LCD, 240x320 resolution
• Camera: OV2640 Camera
• Audio:
  • Microphone for visitor voice capture and two-way audio communication (half-duplex)
  • Speaker for two-way communication (half-duplex)
• Motion Detection: PIR sensor for detecting movement around the door
• Connectivity:
  • Wi-Fi for web access and connection to the indoor display panel
  • 433 MHz RF RX/TX module
  • Screw terminals for connecting doorbell wires to the wall
• Power:
  • Powered through standard doorbell transformer (8 V-24 V AC (min. 8 KV))
  • Innovative phase-sharing design allows continuous operation
• Buttons & LEDs:
  • High-quality metallic button with LED for doorbell press
  • Status feedback on display (e.g., Wi-Fi connection, visitor detected, SD card capacity status, IP address, speaking direction)
• Storage: 32 GB internal storage for event logging and image capture
• Housing: Weather-resistant enclosure, designed for outdoor use
• Programming: Programming over Wi-Fi (OTA)
• Installation to the Wall: Snap-Fit Mounting Bracket, Screws, or Double-Sided Tape

Smart Chime

• Microcontroller: ESP32
• Display: 0.91-inch OLED, 128x64 resolution for status feedback
• Audio: Speaker for custom chime sounds
• Connectivity:
  • Wi-Fi for web access
  • USB Type-C (for programming)
  • 433 MHz RF RX module
  • Power on/off switch
• Power: Powered through standard doorbell transformer (8 V-24 V AC (min 8 KV))
• Programming: Programming over Wi-Fi (OTA) or via USB-C
• Installation to the Wall: Snap-Fit Mounting Bracket, Screws, or Double-Sided Tape

Display

• Microcontroller: ESP32
• Display: 4-inch TFT LCD, 480x320 resolution with capacitive touchscreen
• Audio:
  • Microphone for two-way audio communication (half-duplex)
  • Speaker for two-way communication (half-duplex) and playing customized chime sounds
• Connectivity:
  • Wi-Fi for web access
  • USB Type-C (for programming)
  • 433 MHz RF RX/TX module (TX for automations like door locks or home devices, RX for receiving doorbell button press data)
  • 0.100" header for additional home automation features
• Power: USB Type-C or Molex connector (5 V to 24 V DC)
• Programming: Programming over Wi-Fi (OTA) or via USB Type-C
• Installation to the Wall: Snap-Fit Mounting Bracket, Screws, or Double-Sided Tape

Block Diagram

Open Source

Fusion Chime Vision has fully open-source firmware, allowing customization of features and integration with home automation systems. We will make more information about this project, including schematics, available after it has started to ship to backers. We encourage developers to contribute new integrations, chime sounds, and other features to the platform.

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