Shop OBEX P1 Docs P2 Docs Learn Events
2010 RF Design Contest - Propeller only? — Parallax Forums

2010 RF Design Contest - Propeller only?

T&E EngineerT&E Engineer Posts: 1,396
edited 2009-10-29 16:37 in General Discussion
I saw the advertisement for the contest and started reading through the rules and saw that the judging is based off of Propeller designs. It seems like Parallax should have stated that in the title or something. You have to use a transceiver which is ok but not stating that this is a Propeller only contest is a disappointment.

Is everything in the future just going to be assumed to be Propeller based?

Comments

  • dandreaedandreae Posts: 1,375
    edited 2009-10-28 14:57
    All contests will have rules assigned to them letting you know the requirements.· The contests will vary depending on the product required for use.· In the past we have had contests that have been based on sensors,·the SX microcontroller,·and the Propeller.· If you have any suggestions that you would like to add please feel free to send to support@parallax.com.·

    Dave

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Dave Andreae

    Parallax Tech Support·
  • SRLMSRLM Posts: 5,045
    edited 2009-10-28 15:21
    So the answer is...? To me, it looks like the criteria were cut and paste, but not fully updated. If indeed it requires the Propeller, I think it should be mentioned a few more times instead of offhand...
  • John R.John R. Posts: 1,376
    edited 2009-10-28 17:29
    Contest Rules said...

    5. Criteria: Projects will be judged according to the following factors:
    • 30% Propeller Design Appropriateness Determined on applicant's ability to use the 433 MHz Transceiver to achieve a working design.
    • 30% Originality Creativity of the project.
    • 25% Professionalism This is based on the use of clear English in the Project Report, a quality design (if needed), clarity of explanations, quality of pictures and source code formatting/commenting.
    • 15% Practicality Based on the project's usefulness.
    This looks more like a missed edit than an implication that the contest is for Propellers only, given that the "header" for the first criteria says "Propeller" and the text then goes on to talk about the 433 Transceiver.

    Clarification·would definitely seem·in order.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    John R.
    Click here to see my Nomad Build Log
  • DufferDuffer Posts: 374
    edited 2009-10-28 18:44
    It sure looks like a simple "Copy and Paste" error to me. It looks like the first judging criteria for the 2009/2010 Propeller contest was copied and the underlined heading text wasn't edited to reflect that the "appropriateness" was not of the Propeller but rather the 433 MHz RF Transceiver.

    I'll give you 75% for professionalism if you'll just fix the error rather than defend it·and move on.·smilewinkgrin.gif

    Duffer

    Post Edited (Duffer) : 10/28/2009 6:50:07 PM GMT
  • Jen J.Jen J. Posts: 649
    edited 2009-10-28 22:36
    It was indeed a copy and paste error. And it has been corrected. Thank you for bringing it to our attention.

    May we have the 75% now? [noparse]:)[/noparse]
  • T&E EngineerT&E Engineer Posts: 1,396
    edited 2009-10-28 22:56
    Thank you Parallax!

    It's good to see willingness to support all your customers in contests and other events if possible.
  • hover1hover1 Posts: 1,929
    edited 2009-10-29 00:17
    Good Call Tim!
    T&E Engineer said...
    Thank you Parallax!

    It's good to see willingness to support all your customers in contests and other events if possible.
  • SRLMSRLM Posts: 5,045
    edited 2009-10-29 01:28
    A slight change, but the link in the first sentence appears as if it should go to the product page, instead of a generic store page. I do think you need a link to the product page somewhere on the contest page...

    Also, I think there is an error in the product documentation on the last page schematic. It should say

    VCC = 3.3 V when VIN >"=" 3.3V (add the equal sign).

    If that isn't an error, then it should say what VCC is when Vin <= 3.3V

    Post Edited (SRLM) : 10/29/2009 1:38:49 AM GMT
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2009-10-29 16:37
    SRLM,

    The statement in the schematic is correct. VCC will only be equal to 3.3V if Vin is 3.4V or higher. So when you're powering from 5V the internal circuitry is running at 3.3V but when you switch to 3.3V there is some amount of drop-out on the regulator and VCC will only be 3.2V if I recall the drop-out voltage.· Whenever you have a regulator in a system, you have to account for drop-out when the input voltage equals the normal regulated voltage.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage

    Parallax Engineering
    50 72 6F 6A 65 63 74 20 53 69 74 65


    Post Edited (Chris Savage (Parallax)) : 10/29/2009 4:42:51 PM GMT
Sign In or Register to comment.