This is great news! Looking forward to building my own device.
Will try the sotware too, to see some text output 😁

I would like to ask whether it would be useful to add an option like LOAD to pcvx.com, which would not only configure the emulation on the picovox, but also load or unload the ADLiPT, TNDLPT, and CMSLPT drivers. I believe this could make using the device easier. What do you think? It would still require the original binaries, but it would allow users to set everything up without any additional effort.

My opinion: separation of concerns tends to be a common best practice. Also, I don't think there's much of an added value, since a well-configured batch file would not need pcvx to have any load functionality.

Thanks for the update!

So much looking forward to trying this out !

dreamblaster wrote on 2026-04-06, 11:55:

So much looking forward to trying this out !

Cool to see this project appearing on your radar now too, @dreamblaster!

And I'm looking forward to seeing the Picovox listed for sale on Serdashop once it's ready! ☺️

digger wrote on 2026-04-07, 12:33:

dreamblaster wrote on 2026-04-06, 11:55:

So much looking forward to trying this out !

Cool to see this project appearing on your radar now too, @dreamblaster!

And I'm looking forward to seeing the Picovox listed for sale on Serdashop once it's ready! ☺️

I hope that the final design will be available soon. My first PCBs have finally arrived today, and I will get to soldering. If everything works as expected on the first attempt (that would be awesome), I can release the design files. Also, I have been working on an SMD-based version, although that version still uses the original RPi Pico 2 and PCM5102 module. It is possible to take the components from these two boards and make a single SMD PCB able to accommodate everything. Sadly, I am not really experienced in electronics, and therefore I am unable to provide such a PCB now. I will test the device on multiple computers I have at my disposal, and if everything works (or if something does not), I will let you know.

"Goed bezig", as we say in Dutch. 💪🏽

Thanks for the update and good luck with further testing. 🙂

I have just released the first PCB version publicly! If you are interested in building this little device yourself, you can visit: https://github.com/picovox/hardware. The repository will include more versions in the future, but I plan to keep as many future upgrades backward compatible with this PCB design as possible, so you don’t have to worry about it becoming obsolete.

If you have any questions or suggestions, feel free to let me know. For now, I will mainly focus on writing my thesis and fixing some bugs in the picovox firmware. However, I consider the hardware to be complete, at least for the near future.

jansakos wrote on 2026-04-18, 21:27:

I have just released the first PCB version publicly! If you are interested in building this little device yourself, you can visit: https://github.com/picovox/hardware. The repository will include more versions in the future, but I plan to keep as many future upgrades backward compatible with this PCB design as possible, so you don’t have to worry about it becoming obsolete.

If you have any questions or suggestions, feel free to let me know. For now, I will mainly focus on writing my thesis and fixing some bugs in the picovox firmware. However, I consider the hardware to be complete, at least for the near future.

Congratulations with the first release! Thank you again for making this and sharing it with the world.

I hope to find some time to try my luck and building one for myself based on this. Or maybe I'll just order one manufactured using the Gerber and BOM files.

And then maybe I can help with testing or writing drivers.

Best of luck with your thesis!

This is great news. Im going to order pcbs soon

alpha 1 released!

Everything is located at: https://github.com/picovox/picovox. In case you have any suggestions for improvements, let me know. See you soon at alpha 2-related news.

Hey, jansakos. Is it critical to use Raspberry Pi Pico 2? Or Raspberry Pi Pico W will also do?

Bondi wrote on 2026-04-27, 10:38:

Hey, jansakos. Is it critical to use Raspberry Pi Pico 2? Or Raspberry Pi Pico W will also do?

To be honest, I am not sure about it. I was mostly afraid that I will use more than 8 provided PIO state machines, but I think that I use exactly eight (therefore it should not be a limitation). At the same time I am not really sure whether Pico 1 is powerful enough. And sadly, I don't own the Pico 1 to test that. However it should not be that hard to try it and in case it does not work just replace it with Pico 2. But beware that as of now, there is an overclock to 250 MHz, which is fine for Pico 2, but not that much for Pico 1. So in case you try it, I recommend modifying the value (line 98 in the picovox.c file) to something reasonable (I think that 200 MHz would be fine).

In case you test it and it works fine (or does not), let us all know. At least for now there is not any reason to step up system demands, so if it works now, it will work for quite some time.

Thank you for your respond! I'll try then what i have first. PCBs ordered! No turning back 😀