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vinicius.jlantunes

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Everything posted by vinicius.jlantunes

  1. vinicius.jlantunes
    Glad to see you guys got the course done! I failed miserably in freeing up time for it. I'm doing a different course (also on edx) for work that is very time demanding (~10-12 hours / week) and was too optimistic in thinking I could squeeze this one in as well. Well, I got the boards at least but I'm getting depressed by having all these boards laying around and no time to do anything with them
  2. vinicius.jlantunes
    TI store is having another free shipping promotion through October 23 - https://store.ti.com. No coupon required.
  3. vinicius.jlantunes
    How often you order @@zeke? Maybe they have some sort of limit / max number of orders for a given time period? I just got a few samples this week no problem, using my work email (.com). But last time I had ordered samples was at least 6 months ago for sure.
  4. vinicius.jlantunes
    Got my free shipping bounty today as well. I feel guilty ordering samples on their own, so I thought when buying these things - "well, will add a few other goodies as it won't cost them much more to add to the same package". Funnily though, I received a total of 4 separate packages for all the stuff - one with the booster pack, one with the MSP432, one with only 2 other IC's I paid for, and one with all the samples... I know it's peanuts for TI, but they must have made a loss on my ~45 bucks order! You gotta love TI!
  5. vinicius.jlantunes
    Hey guys, I'm also taking the course. Not sure though about the Bluetooth module though... a bit pricey especially with the dollar so strong (against Brazilian Real) right now. Let's see, maybe later I will bite the bullet. Waiting on the I/O booster pack thingy to arrive. Good luck and fun to all!
  6. vinicius.jlantunes
    As title says: what appears to be a very interesting course is about to start on edx: https://www.edx.org/course/electronic-materials-devices-mitx-3-15-1x#! I will not be able to take this one as I am taking one other series of courses from MITx on Supply chain (related to work) and they take A LOT of time. This other MITx course I'm taking is amazing, which is why I am posting this one here. Looks like their courses are a bit better than the edx average. Good luck for anyone trying it!
  7. vinicius.jlantunes
    Just got this in the mail - 3.14 USD freight on all TI store orders today (03/14). On my last orders to Brazil I have been charged 7 USD, so it's a good discount for me. It wasn't clear to me if it is valid worldwide, but for those folks who were being charged 21 USD, could be a great chance for buying what you need!
  8. vinicius.jlantunes
    Got an email yesterday about some deals TI is offering this week. The MSP432 launchpad is selling by USD 4.32 again, plus some other cool stuff. I am tempted by a CC3200 LP, but I think I have to stop kidding myself and do something with the stack of LP's I already have before buying more... http://www.ti.com/corp-tistore-null-engineersweek2016-bhp-lp-null-wwe
  9. vinicius.jlantunes
    I was watching Dave Jones video about the smart tweezers I've been wanting to buy, and it has got an MSP430 in there.
  10. vinicius.jlantunes
    That's a funny thing to do! Awesome project as usual @@greeeg
  11. vinicius.jlantunes
    A bit off-topic for the forum but maybe others here, like me, have a general interest in engineering topics. I'm taking this course on edx: The Art of Structural Engineering: Bridges https://courses.edx.org/courses/course-v1:PrincetonX+CEE262.1x+1T2016/info Just finished first week (it began last Friday), very cool so far!
  12. vinicius.jlantunes
    Thank you guys, bought two just because (plus the analog engineer handbook and a couple chips).
  13. vinicius.jlantunes
    I posted a review of PartsBox.io to my Youtube channel, for anyone interested. It's a nice tool I stumbled upon a while ago when I was organizing the lab and looking for a better way than Excel to keep parts inventory.
  14. vinicius.jlantunes
    Great talk @@Lgbeno, and great work with analog.io (and all the rest as well ) !
  15. vinicius.jlantunes
    I gave it another try with another board, now using solder paste + hot air gun. There is always room for improvement but it was a much better result!! @@greeeg, yeah I have a bunch of boards I accumulated over the years for salvaging components, filled with SMD parts. Thanks for the tip, will definitely use them at some point for further enhancing my poor soldering skills!
  16. vinicius.jlantunes
    Yeap, it's linked on the video. http://www.aliexpress.com/item/SMT-SMD-Component-Welding-Practice-Board-Soldering-Practice-DIY-Kit-Better-US57/32243189935.html?ws_ab_test=201556_1,201527_1_71_72_73_74_75,0_0
  17. vinicius.jlantunes
    @Fmilburn: I do own one of these WEP 858D+ (same as Atten 858D+). I bought it after watching Dave Jones review video: http://www.amazon.com/858D-Station-Soldering-Display-Nozzles/dp/B009PPRJHS/ref=sr_1_1?ie=UTF8&qid=1443819068&sr=8-1&keywords=wep+858d%2B I can't say I used it a lot, but I did rework a couple chips in a PSU I was attempting to fix and it worked great. I also used it to shrink some shrink tubing and it also worked fine. I plan on doing a follow-up to my video where I use solder paste and hot air and compare the results. I might get around filming it this
  18. vinicius.jlantunes
    I've put one more video in my Youtube channel, this time it's me soldering a SMD soldering practice kit I got off Aliexpress for 1 dollar. I can definitely improve my skills! Go ahead and watch, even if only to laugh at me
  19. vinicius.jlantunes
    The other day I recorded myself unboxing this kit I got for a training I am taking, and uploaded it to my youtube channel. In case anyone would like to watch, here is the link: The kit is quite nice, featuring a Cortex M4 processor and a lot of goodies on board (OLED display, accelerometer, temperature sensor, current sensor, etc.). The other nice thing about it is the demo application it comes with, that is basically a data logger that can record all of the things mentioned above (XYZ channels of the accelerometer, current, internal and external temperature) PLUS 4 channels that ar
  20. vinicius.jlantunes
    I genuinely admire your work, +1 skull!
  21. vinicius.jlantunes
    I will have a look at my design and incorporate your tips @@RobG. I am still learning this Circuit Maker thing so let's see how it goes!
  22. vinicius.jlantunes
    Thanks @@oPossum! I will have a look at the video later at home.
  23. vinicius.jlantunes
    I am working on a breakout / test board for a TLC5940 that I got in one of those HTSSOP-28 packages, with the little metal back that you're supposed to attach to a copper area using thermal vias and use as heat sink. My question is: is there a way for me to "hand solder" that part without reflowing the board? Will it work if I try to heat it from the back of the board with a soldering iron, or is the copper area too large and it will never heat up to a point where the solder melts? Would some flux maybe help? Should I just wack some thermal paste between board and component and not even
  24. vinicius.jlantunes
    That's good to hear @@bluehash! I don't think it's unfair for them to charge for shipping. Actually my post was more of a "nostalgic" ramble as it was so good to have 1st class service, all duties paid, for free. But I understand it had to be costing them a lot of money, especially when shipping to countries like Brazil with its ridiculous import taxes and stuff. That said, it would be good to at least have a cheaper option so it becomes viable again. I heard some people in a local mailing list saying they got their MSP432 LP's with taxes paid, and were only charged 7 USD for shipping.
  25. vinicius.jlantunes
    @@Fred Did you get it from ebay?
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