ooops, I'm very bad at electronics, but I know I forgot a stupid diode xD (I hope the idea is understood)
[image: Inline image 1] On Mon, Sep 16, 2013 at 10:15 AM, Felix <[email protected]> wrote: > Well, the RTC feature is really attractive, so having an independent power > input for it is cool. The MKL25Z128VFT4 don't have that input, so the > only thing you can do is to put the cpu in VLLS1 state and connect it > (whole cpu) to battery (maybe second power bus with a diode?) and it should > drain few μA. > > Should be possible something like following? > > [image: Inline image 1] > > > > On Thu, Sep 12, 2013 at 5:04 AM, Ron K. Jeffries <[email protected]>wrote: > >> The KL2 MKL25Z128VFT4 M0+ 48 MHz 48-QFN 128 kB 16 kB USB-Reg, >> ID >> looks like a winner based on current information. It certainly doesn't >> hurt that it costs > $2.00 >> LESS than competing MCUs. Also, it has the better low-power consumption >> spec. >> >> Unrelated [to MCU selection] question in a separate email. >> >> I think you are on to something with the password safe idea. Not a mega >> hit, >> but a nice little niche that is do-able, and just might catch on. As in >> Kickstarter >> is not out of the question, given a lot more work on identifying WHY >> people need it >> and might be motivated to invest money. If you can make money with a >> retail price >> NTE $50 it can work. >> >> Ron K Jeffries >> >> --- >> Ron K. Jeffries >> 805-567-4670 >> >> >> >> >> >> >> On Wed, Sep 11, 2013 at 3:37 PM, Werner Almesberger < >> [email protected]> wrote: >> >>> I wrote: >>> > [ a lot ] >>> >>> That should of course have ended with: >>> >>> Any comments this far ? >>> >>> - Werner >>> >>> _______________________________________________ >>> Qi Hardware Discussion List >>> Mail to list (members only): [email protected] >>> Subscribe or Unsubscribe: >>> http://lists.en.qi-hardware.com/mailman/listinfo/discussion >>> >> >> >> _______________________________________________ >> Qi Hardware Discussion List >> Mail to list (members only): [email protected] >> Subscribe or Unsubscribe: >> http://lists.en.qi-hardware.com/mailman/listinfo/discussion >> > > > > -- > Felix > -- Felix
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