Chronoduino v0.3 published!

Yes, i’m still alive, as is Chronoduino. I’ve just been overly busy and didn’t have much time for side/hobby-projects lately…

Anyways, i’ve finally caught some free time to put the documentation together for the new revision of Chronoduino (v0.3). Here are the changes:

  • Chronoduino can now be powered via SPI, TTL, battery or USB directly
  • there’s a 3.3V VREG hooked up to the USB now
  • if multiple sources are present, the one with the highest voltage is used
  • the battery charging IC now has a status LED
  • debug LED should now work
  • RTC crystal has a shunt resistor which should improve stability
  • 2-pin battery JST has been deprecated
  • PCB routing was tweaked slightly
  • silk screen label sizes were increased slightly

You’ll find the EAGLE files, schematics, description, BOM and all the other goodies at the usual place – in the Chronoduino wiki.

New boards have already arrived, but i didn’t get around to ordering the new components yet, so they haven’t been tested. Which means the Bugs section is still empty.

On another note, i’ve established a naming scheme for Chronoduino revisions. In keeping with the cetacean (whaley) theme, they will be named after cetacean species of the odontoceti suborder (toothed whales), in loose alphabetical order. Thus, i hereby christen the initial v0.1 Arnoux, the unreleased v0.2 Bahamonde and the latest v0.3 Baird. The next revision will be Beluga.

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4 Responses to “Chronoduino v0.3 published!”

  1. Jack 23/04/2012 at 03:32 #

    Hey man, just wondering if this is still a go?

    I’m super interested in this, and would love to see it progress further.

    I’d be happy to build a couple and do some bug reports? Are the schematics, PCB files and code at a point where I could get a board printed, solder parts on and program?

    Shoot me an email, I’m happy to chat :)

    • orcinus 23/04/2012 at 13:59 #

      It’s still a go, but i’ve had absolutely 0 free time to devote to this project in the past x months due to being swamped with work. It should all work, with one caveat – i’m not sure if Atmega 168PA is finally officially supported in the Arduino environment and avrdude. If not, you’ll still need to edit their config files (as i had to with the first prototype).

      I’ll shoot you an e-mail :)

  2. marcel 15/03/2013 at 20:26 #

    any progress on this project? looked really promissing….any plans for the watch case?

    • orcinus 15/03/2013 at 23:17 #

      No progress, unfortunately, due to work my work schedule in the past year.
      It’s not dead, however. When i catch some free time, i’ll probably redo the PCB with a more modern microcontroller in mind.

      Also, i’ve built myself a 3D printer in the past x months, so i definitely plan on designing and printing a proto case of some kind.

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