














Home Assistant Voice Preview Edition
Overview
The easiest way to start with Assist: Just connect it to USB-C power (cable and power supply not included) and it will connect with Home Assistant via an intuitive installation wizard. No assembly required.
The private voice assistant: Pairing Voice Preview Edition with powerful Home Assistant hardware can allow it to run fully locally, or offload its audio processing to the privacy-focused Home Assistant Cloud - Home Assistant. It also includes a hardware mute switch that physically cuts power to the microphones.
Language support: Assist aims to support more languages than other voice assistants, but this is still a work in progress, and Home Assistant needs your help. Check the Talking with Home Assistant - get your system up & running - Home Assistant in the Home Assistant’s Assist documentation.
Advanced Audio Processing: Dual microphones and the XMOS audio processor cuts through noise to hear your voice clearly.
Visual and audio feedback: The multicolored LED ring displays when it's listening, volume levels, and more. Get sensor readings, timers and other feedback via its speaker. Connect an external speaker for media playback via its 3.5mm headphone jack.
Physical controls: The rotary dial lets you control volume and LED brightness, while the multifunction button can trigger Assist or be customized in Home Assistant.
Blends into the home: Its small, unobtrusive design is injection-molded giving it a premium look, and its tactile controls give it a premium feel.
Expandable: Built on ESPHome, sensors can be added via the included Grove port.
Fully open and community-driven: Completely open software, firmware, and hardware lets you make it work the way you want. All backed by a dedicated community customizing and adding functionality.
Specifications
Compute:
SoC
ESP32-S3 SoC with
16 MB of FLASH storage
8 MB octal PSRAM
Audio Processing
XMOS XU316
Featuring:
Echo cancellation
Stationary noise removal
Auto gain control
Power/data
USB-C, 5 V DC, 2 A
Radios
2.4 GHz Wi-Fi
Bluetooth 5.0 Low Energy
Audio output
3.5 mm (⅛”) stereo headphone jack
Digital to analog converter (DAC):
TI AIC3202
48 kHz sampling rate
Physical controls
Multipurpose button
Rotary dial for volume and other input
Mute switch that physically cuts power to the microphone
Microphone & speaker
Internal speaker
Internal dual-mic array
Hardware mute switch
Dedicated I2S lines for audio in and out
Expandability
Grove port to connect sensors or other accessories
Easy to open - no clips, only screws to access internals
Exposed pads on PCB for modding
Software
ESPHome preloaded
Fully open-source firmware for both the ESP32 and XMOS chip
Language support - Check Home Assistant Assist documentation for an up-to-date list.
Environmental conditions for operation
Indoor use only
O °C to 30 °C
32 °F to 86 °F
Humidity: non-condensing
Keep in dry, not excessively dusty environment as this can cause damage to the unit
Dimensions & weight
84x84x21 mm, 96 g | with box: 94x94x30 mm, 120g
Material
Enclosure:
Injection-molded
Polycarbonate plastic
Colors: White and Semi-transparent
Fully open and customizable
We tried to make every aspect of Voice Preview Edition customizable, which is actually pretty easy when you’re working hand-in-hand with ESPHome and Home Assistant. It works great with the stock settings, but if you’re so inclined, you can customize the Assist software, ESP32 firmware, and XMOS firmware.
We also made the hardware easy to modify, inside and out. For instance, the included speaker is for alerts and voice prompts, but if you want to use it as a media player, connect a speaker to the included 3.5mm headphone jack and control it with software like Music Assistant. The included DAC is very clean and capable of streaming lossless audio. It can also be used as a very capable ESP32 device. On the bottom of the device is a Grove port (concealed under a cover that can be permanently removed), which allows you to connect a large ecosystem of sensors and accessories.
We’ve also made it quite painless to open, with easy-to-access screws and no clips. We even included exposed pads on the circuit board to make modifying it more straightforward. We’re providing all the 3D files so you can print your own components.
Part List
Home Assistant Voice Preview Edition
Home Assistant Sticker
Warranty and Safety Manual
Get Started Card
Overview
The easiest way to start with Assist: Just connect it to USB-C power (cable and power supply not included) and it will connect with Home Assistant via an intuitive installation wizard. No assembly required.
The private voice assistant: Pairing Voice Preview Edition with powerful Home Assistant hardware can allow it to run fully locally, or offload its audio processing to the privacy-focused Home Assistant Cloud - Home Assistant. It also includes a hardware mute switch that physically cuts power to the microphones.
Language support: Assist aims to support more languages than other voice assistants, but this is still a work in progress, and Home Assistant needs your help. Check the Talking with Home Assistant - get your system up & running - Home Assistant in the Home Assistant’s Assist documentation.
Advanced Audio Processing: Dual microphones and the XMOS audio processor cuts through noise to hear your voice clearly.
Visual and audio feedback: The multicolored LED ring displays when it's listening, volume levels, and more. Get sensor readings, timers and other feedback via its speaker. Connect an external speaker for media playback via its 3.5mm headphone jack.
Physical controls: The rotary dial lets you control volume and LED brightness, while the multifunction button can trigger Assist or be customized in Home Assistant.
Blends into the home: Its small, unobtrusive design is injection-molded giving it a premium look, and its tactile controls give it a premium feel.
Expandable: Built on ESPHome, sensors can be added via the included Grove port.
Fully open and community-driven: Completely open software, firmware, and hardware lets you make it work the way you want. All backed by a dedicated community customizing and adding functionality.
Specifications
Compute:
SoC
ESP32-S3 SoC with
16 MB of FLASH storage
8 MB octal PSRAM
Audio Processing
XMOS XU316
Featuring:
Echo cancellation
Stationary noise removal
Auto gain control
Power/data
USB-C, 5 V DC, 2 A
Radios
2.4 GHz Wi-Fi
Bluetooth 5.0 Low Energy
Audio output
3.5 mm (⅛”) stereo headphone jack
Digital to analog converter (DAC):
TI AIC3202
48 kHz sampling rate
Physical controls
Multipurpose button
Rotary dial for volume and other input
Mute switch that physically cuts power to the microphone
Microphone & speaker
Internal speaker
Internal dual-mic array
Hardware mute switch
Dedicated I2S lines for audio in and out
Expandability
Grove port to connect sensors or other accessories
Easy to open - no clips, only screws to access internals
Exposed pads on PCB for modding
Software
ESPHome preloaded
Fully open-source firmware for both the ESP32 and XMOS chip
Language support - Check Home Assistant Assist documentation for an up-to-date list.
Environmental conditions for operation
Indoor use only
O °C to 30 °C
32 °F to 86 °F
Humidity: non-condensing
Keep in dry, not excessively dusty environment as this can cause damage to the unit
Dimensions & weight
84x84x21 mm, 96 g | with box: 94x94x30 mm, 120g
Material
Enclosure:
Injection-molded
Polycarbonate plastic
Colors: White and Semi-transparent
Fully open and customizable
We tried to make every aspect of Voice Preview Edition customizable, which is actually pretty easy when you’re working hand-in-hand with ESPHome and Home Assistant. It works great with the stock settings, but if you’re so inclined, you can customize the Assist software, ESP32 firmware, and XMOS firmware.
We also made the hardware easy to modify, inside and out. For instance, the included speaker is for alerts and voice prompts, but if you want to use it as a media player, connect a speaker to the included 3.5mm headphone jack and control it with software like Music Assistant. The included DAC is very clean and capable of streaming lossless audio. It can also be used as a very capable ESP32 device. On the bottom of the device is a Grove port (concealed under a cover that can be permanently removed), which allows you to connect a large ecosystem of sensors and accessories.
We’ve also made it quite painless to open, with easy-to-access screws and no clips. We even included exposed pads on the circuit board to make modifying it more straightforward. We’re providing all the 3D files so you can print your own components.
Part List
Home Assistant Voice Preview Edition
Home Assistant Sticker
Warranty and Safety Manual
Get Started Card