Worried of big tech spying on you? Replace Alexa with local (no cloud) voice assistant - Part II
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- เผยแพร่เมื่อ 19 มิ.ย. 2024
- In this second video of a video series on how to create a local voice assistant which replaces Amazon Alexa and Google Home, we create a custom PCBA from the circuitry that we had built up in part I of the video series.
We will go through the circuitry in an EDA software, will the go through the PCB schematic and finally see the custom PCBA in action.
In part I of this video series, I had showed you how I built a prototype for a local voice assistant based upon ESPHome and Home Assistant. If you haven’t seen part I, I recommend watching this first:
• Level Up Your Smart Ho...
Also, follow my blog to get more information about this and other projects: the-smart-home-maker.com
00:00 Intro
01:25 Draw the circuit diagram
04:41 Place parts on PCB
06:30 View PCB in 3D
07:12 PCB arrived - first test
08:02 Bugs & problems identified
11:12 Conclusion
#homeassistant #esphome #localvoiceassistant #smarthome - วิทยาศาสตร์และเทคโนโลยี
![ทัศนศึกษาโรงงานผลิตโค้ก [THAI/ENG SUB]](http://i.ytimg.com/vi/M9y-TJBNem0/mqdefault.jpg)
This is great. I'd love to build this project when you get it all working. Good job!
Thank you 😊👍🏻
I'm waiting for more videos on this :)
3D prints etc. Great project!
More will come 😊👍🏻
Subscribed! I really want to see how this plays out. Thanks for documenting your project on this channel ❤
Thank you for subscribing and for being interested in how it will continue 😊👍🏻
Quick tip/idea... you mentioned not having much experience in designing PCBs. Maybe now is a good moment to switch to KiCad. I'm not paid by them :) but when I switched from EasyEDA to KiCad, my boards instantly became more professional. And to my surprise, it became easier and faster. Although there was a steep learning curve in the beginning. Just keep a shortcut cheat sheet hanging next to your screen. Otherwise... very good designed board!
Thank you - will give it a try for the next design 😊👍🏻
Can’t wait to see how this turns out. I am very interested in replacing alexa
Happy that you like it 👍🏻😊
I have a similar experience level in electronics but I have a few thoughts:
Increase the trace sizes for the power (5v, 3.3v & GND) pins. They look a bit small. You might even feel the board getting warm at boot up and whenever the speaker is running.
According to the ESP design docs, the modules should be on an edge to allow the built-in wifi antenna the best chance at reception. In square boards, the top right. On your round board, the antenna should be close to an edge. Don’t put any copper below the antenna or put the wroom module over the edge. Or cut out the area below the antenna.
Maybe first iterate with one of the pre-built dev kits so you don’t have to worry about paying for PCBA every time. The dev kits have the 3.3v circuitry, USB-> UART, ports, etc.
WS2812s or neopixel LEDs need 5v logic. You can sometimes get away with 3.3v logic direct from the ESP32 but the LED usually has to be close and no power issues. You can try putting a neopixel of the same variety on your board, close to an output pin and have the DOUT pin of that neopixel lead to the ring outside. PCBA is more expensive with neopixels though.
I prefer Kicad over EasyEDA and I would encourage you to try Kicad but it’s another tool to learn and you may move faster using the tool you know now. Please consider it though. It makes sharing the designs easier if you would like to open source this in the future
Wow! Thank you so much for all the tips and ideas 😊👍🏻 I will definitely try them and let you know 😊
@@the_smart_home_maker Cool! I would definitely be interested in using something like this in the future.
My description about the module antenna didn’t seem quite clear when I read it back. I meant to write:
Do put the module on the edge of the board. Or at least as close to the edge as possible.
Don’t let the area under the antenna have a copper fill.
Do try cutting out the area on the PCB under the antenna, if space allows. A round PCB might have better mounting options though.
Espressif has a nice infographic on their website. Try searching for “ESP-WROOM-02 PCB Design and Module Placement Guide”. The guide applies to all Espressif modules with a PCB antenna. It will show mounting options and a graph of the resulting wifi power. Center of the board with copper fill is the worst but still useable.
Thank you so much, @Matthew!! Will definitely consider this in Revision 2 of the board. WiFi reception has not yet been a problem but might arise in the future, so it is good to follow these guidelines 😊👍🏻😊👍🏻😊👍🏻
Very nice video.
Happy that you like it 👍🏻😊
Amazing Job!!! Can you play any music from Home Assistant to your device? Or can you "just" control the devices?
Can't wait to see the final result.
Hey! Glad you like it 😊👍🏻 Playing music should theoretically work but I haven’t tested it yet. But this will definitely be a next step.
@@the_smart_home_maker I can't wait for the final result... Please, keep posing any news.
@joelfrojmowicz For sure! 😊👍🏻
I do like the video, very informative but I do have to say that the music from 3:46 sounds like an ingame menu while it's loading something :D Consider changing that ;) Other than this it was very nice video!
Thank you for the feedback!
is it possible to play music on multiroom?
Good question 😊 This would be a question for the Home Assistant community. I haven’t tried playing music with the device yet but it will be part of the next steps
With the current state of voice assistant, can you request it to play music like from spotify?
This is something I haven’t tried yet. But it’s one of the features I definitely need and will try out soon 👍🏻
When will you have another version?
Might take some time but definitely within the next months
Looking forward to seeing the update. Do you have the files on GitHub.
@@clairerovic you can find the code here:
medium.com/@the_smart_home_maker/use-esphome-and-home-assistant-to-replace-alexa-with-local-voice-assistant-part-i-prototype-1ff9f55602c0