Let's see how I created my own local voice assistant with on-device wake word detection using an ESP32 S3 and a Micro Wake Word with Home Assistant.

Installation guide, circuit diagram and component purchase links: https://smarthomecircle.com/How-I-created-my-voice-assistant-with-on-device-wake-word-using-home- assistant

Configure the voice assistance pipeline: https://youtu.be/P4V2JqCmk7M

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Components used in the video
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ESP32S3N16R8:
AliExpress https://s.click.aliexpress.com/e/_DFopt57
Amazon US: https://amzn.to/3WM24je
Amazon EU: https://amzn.to/3WPJYwC

Microphone INMP441:
AliExpress: https://s.click.aliexpress.com/e/_Dmn2PyR
Amazon United States: https://amzn.to/3GdxO7o
Amazon EU: https://amzn.to/47uScws

MAX98357a audio amplifier:
AliExpress: https://s.click.aliexpress.com/e/_DdyIFTH
Amazon US: https://amzn.to/46wKTmW
Amazon EU: https://amzn.to/47vEMjH

WS2812B 5mm COB LED Strip:
AliExpress: https://s.click.aliexpress.com/e/_DDtD9SP
Amazon EU (not exact model): https://amzn.to/3yqR7t7

4 Ohm 3W speakers:
AliExpress: https://s.click.aliexpress.com/e/_DBDIScT
Amazon EU: https://amzn.to/3xafVpd
Amazon United States: https://amzn.to/4chdboN

Mute button: https://s.click.aliexpress.com/e/_DEhJfB1

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Support via:
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Buy me a coffee: https://www.buymeacoffee.com/amrutprabhu
Patreon: https://patreon.com/AmrutPrabhu
PayPal: https://www.paypal.com/paypalme/amrut15

Social connections
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Follow me on X: https://twitter.com/smarthomecircle
Instagram: https://www.instagram.com/smarthomecircle/
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Smart home related card to buy:
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ESP32 WROOM: AliExpress: https://s.click.aliexpress.com/e/_DB4HfST
Amazon United States: https://amzn.to/45vab4p
Amazon DE: https://amzn.to/3FbreOc

Raspberry Pi 5: AliExpress: https://s.click.aliexpress.com/e/_DEGXA5N
Amazon United States: https://amzn.to/3xp4CZL
Amazon EU: https://amzn.to/3xeOB8S

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Equipment I use:
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Sony Alpha a6000: Amazon India: https://amzn.to/3RM7QMJ
Germany: https://amzn.to/3G1Iw24
United States: https://amzn.to/3cpKZ9E
United Kingdom: https://amzn.to/3J0g5Ry

Razer Microphone: Amazon India: https://amzn.to/3aQxI9C
Germany: https://amzn.to/3DRRrAh
United States: https://amzn.to/3ITKu3Q
United Kingdom: https://amzn.to/3v3RHbU

===== Chapters ======

00:00 – On-device wake word detection demo
00:25 – Creating the voice assistant device
06:37 – Creating an ESP32 S3 device in ESPHome
07:07 – Understanding Wake Word's YAML configuration on device
07:41 – Configuring the Mute button
08:02 – Configuring the hardware mute button
08:36 – LED strip setup
08:56 – Configuring I2s microphone and audio
09:02 – Configuring the microphone and speakers
09:51 – Configuring the micro alarm clock on the device
10:45 a.m. – YAML configuration of the voice assistant
11:25 a.m. – Binary flashing on the ESP32 S3
1:31 p.m. – Connecting the ESP32 S3 voice assistant to Home Assistant
13:53 – Finding the device's IP address
2:50 p.m. – Voice assistance device display in Home Assistant
3:10 p.m. – Testing the mute buttons
3:35 p.m. – Testing hardware mute buttons
4:00 p.m. – Configuring voice assistance pipeline components
5:23 p.m. – Testing wake word detection on the device
6:40 p.m. – What’s next?

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