mkvenkit / mico Goto Github PK

1. What is this "U3" Mfr. No (or. Mouser Part No.) ? "W25Q128JV" (Footprint:"PSON50P300X200X60-9N")
   (Density 128Mb, Frequency 133MHz ?)
2. [W25Q128JV_DTR] ( https://www.winbond.com/hq/product/code-storage-flash-memory/serial-nor-flash/?__locale=en&selected=128Mb#Density )
3. W25Q128JV-IM/JM(2) valid part numbers: W25Q128JV-IM, ,
   *S, SOIC-8, 208-mil, 128M-bit,
   PRODUCT NUMBER W25Q128JVSIM,
   TOP SIDE MARKING 25Q128JVSM ?
4. What is in photo, this chip top site marking ?
5. What is this "U3" (real) package type? (USON8 3x2 mm , USON-8-EP (2x3) , LGA8 3x2mm) (
   ( https://www.infineon.com/cms/en/product/packages/PG-WSON/ )
   PG-WSON-8-1 | PG-WSON-8-4 is 3x3mm,
   PG-WSON-10-800 | DFN-10 (002-10864) is 3x3mm,
   PG-WSON-14-800 | DFN-14 (001-96312) is 2.5x3.5mm)
6. Can I use too Mouser No:363-GD25Q128EQIGR , Mfr. No: GD25Q128EQIGR ?
   ( Package USON8 (4x4mm, 0.45mm thickness) 128 Mbit, 2v7-3v6 25mA 133MHz 16Mx8 8bit )

I'm N00B, first week learning KiCad 7.0 aso.
I want make this as thin as possible, long version ( RP2040 chip width and PCB 7mm ~ 8mm width )
(w battery aso. (maybe 2x mic (one audio & another case noise (after some software cleaning/canceling case noise out in audio) ))).

Hi,
Does this project support other sample rate, such as 96K, 192K thanks

I've decided to move forward and explore having a Kickstarter program to do a production run of this component. I'm awaiting a "turn-key" quotation from PCBAssemblyExpress in Oregon, When I have the quotation and hear back from Mahesh, I'll update this issue. See Issue #3

I have no experience with Kickstarter, but believe it to be a highly reputable company. Mahesh seems to have done all the leg work and produced a ready-to-manufacture product. So the question now is whether there would be demand to generate a production run. And, of course, at what cost. I am thinking if I can obtain a quotation for ready-to-use components, the only other task would be fulfillment and I am looking at https://www.easyship.com to handle that so that my role in this matter is simply managerial.

on 1 chip rpi2040 can you use 2mic?

I am interested in this product. It could be possible purchase a few ones to test it?

Thanks.

First, let me say that this is an awesome project, thank you!

I have tried to load it into KiCad, and it seems that some pads (mostly GND, see eg. the USB connector) are not connected. Is this is problem with 5.x to 6.0 conversion, or is it intentional?

Just noticed this on Crowdsupply. Very nice, thanks!

This sound like something I've been looking for during the last few years. With the exception of power consumption and size.

My needs could be summarized as:

1. high sound quality and wider frequence range than mainstream digital mics
2. two or more digital microphones (probably on some flex PCBs of 15-20 cm length; all such flex PCBs probably detachable but not necessarily so)
3. very small size (width of a micro USB connector is kind of the threshold assuming max length of a "master" PCB would be 2-2.5 cm - maybe there is a way to make an edge of a PCB into a USB-C male connector like it's being done with USB-A, IDK)
4. very low consumption - I was thinking of using some embedded USB aka eUSB2 (see What is eUSB2?) codec chip routed to both an on-PCB eUSB<->USB conversion circuit and to some breakout vias with the possibility to desolder/cut the power wire to the conversion chip by the end user to allow only the eUSB connection and save power

I wonder what do you think about such microphone(s)?

Could this be used as a satellite instead of a Raspberry Pi Zero w v2