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rebeltaz

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  1. rebeltaz

    Has anyone used Elecrow recently?

    d'oh! Seems they don't like Ghostery and/or AdBlock Plus. Disabling those allowed the service to be added to the cart. Thanks.
  2. I finally desined a board that I need more than one of and I thought I'd give Elecrow a try. When I tried to add the 5-pc 10cmx10cm board service to the cart, I got a Page Not Found error. So I tried to shoot them a message from their on-line support form and got the same error page. I was just wondering if anyone else has used them succefully recently or received the same error pages? Thanks guys
  3. rebeltaz

    will this work / burn out output pin?

    Well, now that's just too darn simple, isn't it? lol.. I will try that. Thank you.
  4. rebeltaz

    just wanted to show off my latest clock :)

    Than you And yes... when the external power is cut, the coin cell takes over and the MSP ceases updating the display, while still maintaining the current time. So far, it seems to be working pretty well
  5. rebeltaz

    will this work / burn out output pin?

    @@enl -> ah... I gotcha now. Can I ask why use the transistor instead of a rectifier, though? Thanks
  6. rebeltaz

    will this work / burn out output pin?

    @@enl -> This is the circuit I am using in the rest of the clock to switch the common anode segment displays: It works, but I can't implement that with my idea of toggling positive and negative on the same pin. @@abecedarian -> I like that switch, but looking at the datasheet, it looks like I would still need to have it switch between two transistors (since it can't handle more than 50ma by itself or Vss (the switched voltage) higher than Vdd. And if I were to run Vdd high enough to allow switching of 12v, then I'd need to switch the input of the switch IC with another transistor... and this is just getting complicated! lol... It is beginning to look like the simplest solution is just to go ahead and use the two remaining output pins. Or, I guess even easier would be to just use a small SPDT mechanical relay. Thanks, though guys
  7. I am trying to toggle a set of LEDs. I have two pins left available to use, but I would really rather not use both for this one feature if I can help it. I'd like to have a spare pin left over in case I need it later. What I am trying to do is to drive the MSP output positive to select one set of LEDs and negative to select the other set. Will this work without burning out the output pin? Or will the MSP even be able to pull the PNP base to ground far enough to turn it on? Usually, when switching PNP transistors with 12v on the emitter, I typically switch an NPN with the MSP and use that to bring the base to ground, but obviously (or so it seems to me anyway) I can't do that in this situation. Thanks as usual
  8. rebeltaz

    just wanted to show off my latest clock :)

    Oh man... it's so cool that you said that! That actually was in my original design plans (lighting the sun or moon to show AM or PM) but since the plastic sheet is blue, I was afraid the the sun might shine green if I tried to illuminate it! I may try that later though. I also thought about adding stars using fiber optics. My projects are never finished so...
  9. rebeltaz

    just wanted to show off my latest clock :)

    Thanks guys
  10. Ok... so compared to some of the projects I see on here, I feel like amateur hour at the Apollo, but.... Here goes: I love building clocks, but I have no use for time itself. So a long time ago, I thought of doing this project. It wasn't until I fell in love with the MSP430 that I dusted it off and got to it. I call this piece "Beyond Time & Space." It is 12"x24" and every bit is custom built and hand painted. I would love to be able to post this to Etsy or something and sell a few, but with what I have in this, both in materials and time, I'd have to charge close to $600 for it and I doubt anyone would be willing to pay that I need to get better pictures of the actual finished product, but I enjoy it and I hope you guys do, too!
  11. In case anyone else would like to play around with really large displays, I found these - http://www.seeedstudio.com/depot/LED-Segment-c-34_78/?terms_id=216&ref=crumb - They sell 8", 5" and 3" displays for less than $10 each (only $3.50 for the 3" displays), but they are only in red and green. I guess you make make a Christmas countdown clock I did find the blue displays on eBay - http://www.ebay.com/itm/310610985717 - for only $35 for a set of five. Just thought I'd share that in case someone else might want a set for Christmas
  12. lol... I know, right!? But it's just not the same... too....... modern, you know?
  13. Holy cow! That link didn't work, but I did find that on their site and expensive is right! I found these - http://www.ebay.com/itm/310610985717 - but I'm not sure the brightness of them yet. I've got an email in to the seller, but... if anyone knows of anywhere else... I'm still shopping. Thanks!
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