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New P2 module

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Comments

  • @knivd said:
    Not yet. I am just about to complete a PCB which uses this module in a practical application, and will report the achieved performance then.
    In any case, I do not have the resource nor the time to handle manufacturing, sales and logistics, so it is unlikely I will do this myself. If someone else is interested in taking over to make this reach the market, I will happily supply the sources and whatever other help I can. This is a serious invitation

    Any possibility of getting hold of bare boards? If so what price on them? I would like to try building up a couple of these. Of course, the boards would be as is/where is, if I goof one up, so sad too bad, just have to buy another. It looks like a very clean P2 compute module with minimal stuff in the way of whatever one wants to apply it to. Here is the core, just add ideas, software and periph.

    If you don't make / distribute these boards. would you consider releasing an archive of the project that could be used to generate one of these boards; Schematics, PCB files or gerbers and maybe BOM either for a fee or perhaps a charitible donation somewhere?

  • MicksterMickster Posts: 2,333
    edited 2023-01-23 07:43

    I'd PM but others might have input; what will it require to make this thing happen?

  • @knivd said:
    In any case, I do not have the resource nor the time to handle manufacturing, sales and logistics, so it is unlikely I will do this myself. If someone else is interested in taking over to make this reach the market, I will happily supply the sources and whatever other help I can. This is a serious invitation

    I also don't have any resources left over at the moment to handle logistics and sales. But I do have a stencil printer, a P&P machine and a reflow oven. So if somebody else buys the parts and orders the PCBs I could offer to assemble and solder the boards.

    The problem I see is that the boards are very small and some components are too close to the edges. So the boards could not be processed by the P&P machine as single pieces. Instead we have to make panels of at least 2x2 "stamps" with a border ring, fiducials and holding tabs so the boards can be separated after soldering.

  • Okay, here is the thing. I just released the gerber files and the entire manufacturing pack on Github: https://github.com/knivd/P2-STAMP
    If someone wants to voluntarily support my work, I created a Patreon page for that (well, since this is my first attempt, I hope I have created it... :smile: ): https://www.patreon.com/posts/77640430
    If someone wants the Altium source files, I am happy to discuss that too.
    Unfortunately, I don't have bare PCBs which I can share. I thought the factory had sent a few, but can't find them now. Might be wrong about that too. If I get any further luck with those, will write separately.

  • MaciekMaciek Posts: 601
    edited 2023-01-23 19:17

    Looking at parts selection choices this board will be a rather expensive one to produce and make QA inspections and not that easy at all. I'd really like to be badly :) mistaken here.
    Beautiful module, btw.

  • roglohrogloh Posts: 4,688
    edited 2023-01-24 04:54

    @knivd I really like that you've brought out the ON(RUN) and 3.3V and 1.8V signals out to the external PLCC pins. This will potentially allow your P2 module to be put into a low powered mode, with another external power supply/battery/supercap etc feeding low voltage and low current power into the P2 if it is in this "sleep" state with the P2 operating using the low frequency internal RC oscillator and ready to fully wake up at any time (eg. via the RTC int output or other sensors, assuming it can influence the ON pin from the P2). The LTM regulator disables both its MOSFETs when sleeping so I think this should be possible without draining inside the regulator and the regulator itself only draws a max of 45uA in this state. The flash and HyperRAM when deselected hopefully won't add too much more on top of that and in some separate testing @Tubular already found the P2 can survive with really low currents at lower voltages. So this probably opens things up to some low powered applications for your module. Nice.

  • @rogloh said:
    @knivd I really like that you've brought out the ON(RUN) and 3.3V and 1.8V signals out to the external PLCC pins. This will potentially allow your P2 module to be put into a low powered mode, with another external power supply/battery/supercap .....

    I always design with a view for low power usage. This, combined with reduced size places the module squarely in the nice of robotics and mobile automation. P2 is perfectly suited for that.
    Of course it is not a $5 thing, but in the end I think most people have already started to realise that the age of massively under-priced electronics which we saw in the past 15-20 years is coming to an end

  • @knivd said:
    ...
    Of course it is not a $5 thing, but in the end I think most people have already started to realise that the age of massively under-priced electronics which we saw in the past 15-20 years is coming to an end

    Hopefully you are right. Designing quality hardware is a serious and very demanding skill and a meticulous process. One starts to realize that once one tries to do such a thing for real. Quality comes at a price, especially when quantity is not helping with bringing the costs down.
    I hope this module gets produced eventually and I'll be able to get a few of these too.

  • hinvhinv Posts: 1,215

    @Maciek said:

    @knivd said:
    ...
    Of course it is not a $5 thing, but in the end I think most people have already started to realise that the age of massively under-priced electronics which we saw in the past 15-20 years is coming to an end

    Hopefully you are right. Designing quality hardware is a serious and very demanding skill and a meticulous process. One starts to realize that once one tries to do such a thing for real. Quality comes at a price, especially when quantity is not helping with bringing the costs down.
    I hope this module gets produced eventually and I'll be able to get a few of these too.

    Amen to that. Economies of scale has really been amplified by globalism, so that you can get quality hardware at a really cheap price, but with the Chinese manufacturers, as Parallax and others have experienced, they take your meticulous quality design and cheapen it while not even notifying you that what you ordered wasn't actually what they delivered, so every batch has to be inspected for changes.

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