Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
READ THIS FIRST:
This isn't a finished product, nor will I be making it one. I'm sharing this as many were interested in hacking on this further - if you're not comfortable tinkering on software, firmware & electronics but expect a final product, best to pass on this. Before thinking of ordering make sure you're comfortable running the server code, tweaking the firmware, and with the fact that there may be unseen issues. That said, I have validated a batch from PCBWay using the files included here, and this is the most mature version. The design files are on github and you're free to order from somewhere else, but for a datapoint every other build I did (from that other PCB company) had issues that needed debugging and re-work.
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An ESP32-S3 based board, designed to be a drop-in replacement to the PCB in a Google Nest Mini (2nd gen), or used in one's own custom enclosure, to create a powerful, privacy-focused and expressive home voice assistant.
All functionality of the Nest Mini is replicated in hardware, such as Wifi, Bluetooth, capacitive touch pads, mute switch and 6 RGB LED's. It has a debug ribbon cable that can pull out of the device, as well as a USB so that anyone with a Arduino IDE can program it. (this only uses 2 Mic's whereas the original uses 3, as the ESP32-S3's audio framework currently only supports 2 for BSS)
I chose the Google Nest Mini as a starting point due to the relatively low cost of a beautifully designed shell with custom colors, and a quality speaker. From my survey's, this was the most owned (and unused) smart home assistant that was sent out free to many users, is well stocked on eBay and selling for <$40 at some big-box retailers. (cheaper than an "ESP32 Box" yet much better design)
While the ESP32-S3 has powerful audio framework capabilities, the ideal use case is VAD and sending the audio to a local server that has your credentials, logins, logic, "wakewords", even your own LLM such as LLaMa2 or TTS model if you desire, else calls to OpenAI & ElevenLabs etc. This offloads the need for custom logic on each device and centralizes your logic and credentials to a single secure device on your home network.
I would like to get this board out there so that it can be ordered by anyone interested so that they can build new exciting voice applications on top of this.
Demo 2 - Home assistant & Notes
See a more thorough readme here
Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
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ESP32-S3 4.3inch Capacitive Touch Display Development Board, 800×480, 5-point Touch, 32-bit LX7 Dual-core Processor
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Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
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Our engineers have reviewed, and that is the final correct price.
Since the minimum order is 5, in the case above is the 101.51 the price for 1? or the total price for 5?
The total price for 5 assembled PCBs.
Hello, thanks for your question. Below the title_ it says "4 Layers PCB 70.6 x 74.5 mm FR-4, 1.6 mm, 1, Immersion gold, Green Solder Mask, White silkscreen A hackable AI home assistant platform to replace the Google Nest Mini (2nd gen) PCB to enable powerful and expressive voice interactions" is for your reference only. For this project, there is no edge connector, please select "No".
Possible yes, but I won't be doing this. The Altium CAD files are on Github if you want to take a shot!
Not that I'm aware of, the design is too different mechanically - although you probably would be able to use the speaker from it in a disassembled form factor
If you place an order, we will use the community's gerber as the standard. If you place an only PCB order, you will get only a bare PCB; if you place a PCB+Assembly order, you will get a PCB with assembled components.
Sorry for the confusion. We have checked and found that the component part number in the BOM is for the Onju Voice project and is correct, but the name of the BOM is wrong. Sorry again.
So, i got my answer. Your missing the usb connector, buttons and ribbon connector without assembly.
Thanks! I was trying to figure out what that meant. Did you end up doing the project?
This is a great question, I'm very interested in it too.
Looh what i found: https://gist.github.com/MarkWattTech/4c248cee42b32d1c5f84091256cc3279
If you place a PCB+Assembly order, we will make a BOM quotation with you, then we purchase the components and assemble them, and then send them to you after the assembly is completed.
Hello, we can send PCB to Belgium.
For PCB orders, the minimum quantity of PCBs is 5, because the price of 5 PCBs is the same as the price of 1 PCB. For PCBA orders, you can choose the quantity of PCBA yourself.
For the price of components, when you place an order, our quotation engineer will give you the quotation
There is no edge connector, please select "No"