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t0mpr1c3

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  1. Like
    t0mpr1c3 got a reaction from yosh in PCB Give Away   
    The boards are beautiful and work together so cleverly. Thanks very much!
  2. Like
    t0mpr1c3 got a reaction from RobG in ? CodeForge == CodeRipoffRepo | CodeForge == TrojanRepo   
    Someone forged your code, and put it up on a website called what?
  3. Like
    t0mpr1c3 reacted to Fred in STM8 based DMX decoder RGB(W) controller   
    I played around with the STM8 and also the STM32, but also found I drifted back to the MSP430. This very helpful and active forum certainly had something to do with it.
  4. Like
    t0mpr1c3 got a reaction from bluehash in Noritake 24x6 character VFD Free Samples   
    I just squeezed in under the wire on this offer. Got my 112x16 graphical display yesterday. It is impressively bright.
     

     
    Teensy weensy blog post
  5. Like
    t0mpr1c3 got a reaction from GeekDoc in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    Ends today, supposedly.
  6. Like
    t0mpr1c3 got a reaction from GeekDoc in 120 LED Ring Clock   
    Here's an in depth look at timing for WS2812/WS2812B signals from today's Hackaday. Claims that you can control them using an 8 bit AVR at 4 MHz. 
     
    http://cpldcpu.wordpress.com/2014/01/14/light_ws2812-library-v2-0-part-i-understanding-the-ws2812/
  7. Like
    t0mpr1c3 got a reaction from GeekDoc in Giveaways are fun, only...   
    Free PCBs is a nice way to share.
  8. Like
    t0mpr1c3 got a reaction from dubnet in 120 LED Ring Clock   
    Here's an in depth look at timing for WS2812/WS2812B signals from today's Hackaday. Claims that you can control them using an 8 bit AVR at 4 MHz. 
     
    http://cpldcpu.wordpress.com/2014/01/14/light_ws2812-library-v2-0-part-i-understanding-the-ws2812/
  9. Like
    t0mpr1c3 got a reaction from bluehash in 120 LED Ring Clock   
    Here's an in depth look at timing for WS2812/WS2812B signals from today's Hackaday. Claims that you can control them using an 8 bit AVR at 4 MHz. 
     
    http://cpldcpu.wordpress.com/2014/01/14/light_ws2812-library-v2-0-part-i-understanding-the-ws2812/
  10. Like
    t0mpr1c3 got a reaction from RobG in 120 LED Ring Clock   
    Here's an in depth look at timing for WS2812/WS2812B signals from today's Hackaday. Claims that you can control them using an 8 bit AVR at 4 MHz. 
     
    http://cpldcpu.wordpress.com/2014/01/14/light_ws2812-library-v2-0-part-i-understanding-the-ws2812/
  11. Like
    t0mpr1c3 got a reaction from bluehash in Proto Cape   
    I spun a version of the LGX Proto Cape, basically just chopping off the side bits with the SMD footprints which I deemed superfluous.
     
    https://github.com/t0mpr1c3/proto-cape
     
    I'm putting in an order to Elecrow for 10 in green/HASL. I'll have plenty of spares so contact me if you want any and we'll work something out.
  12. Like
    t0mpr1c3 got a reaction from bluehash in Giveaways are fun, only...   
    If I may speak for Bluehash, I believe fulfillment on that schedule would be rather onerous. Also you need a reasonable stock of PCBs.
     
    Perhaps "buy something from the 43oh store, choose a free PCB if you want one" like with the LP v1.4 boards? It would serve as a promotion for stuff in the store, people would pay their own postage, and the administrative burden would be manageable.
  13. Like
    t0mpr1c3 reacted to greeeg in [ ENDED ] Nov 2013 - Jan 2014 - 43oh Project of the Month Contest   
    Hey guys. Figured I should submit my ledRing clock to the project of the month (3 months?)
     


     
    Basically it is a ring of LEDs 120 in total. controlled by a very cheap! MSP430G2121
     
    Here is the schematic for the controller. Design files for the ring can be found in the project thread.
    ; ledRing ; MSP430G2121 ; ----------------- ; /|\| XIN|- ; | | | 32Khz Watch crystal ; --|RST XOUT|- ; | | ; S1 >-|P1.2 | ; S2 >-|P1.7 | ; | SDO/P1.6|-------> LED DATA_IN ; | SCK/P1.5|<--; ; | SCLK/P1.4|-->^ P1.4 and P1.5 shorted ; Code for the G2121 is here:
    ledRing_code.zip
     
     
    Getting the tiny G2121 (1kb Flash, 128b RAM) to control 120RGB LEDs was fun. I ended up implementing a small heap and node system.
    Technically there can only be 30 or so LEDs lit at any time due to this. however this works well for a simple clock implementation
    Also to get the tight timings required for the WS2812's I'm using the USI in slvae mode, clocked by the MSP's SCLK (exposed on P1.4) this saves ~5 cycles needed to move a byte to the USI's bit count register.
     
    The code is also 100% assembly. and I'm no assembly wiz so there is probably quite a bit of wasted space.
     
    Design is very simple. clock just runs, pressing button 1, increment the hours and resets the minutes (helps with working out what hour is lit).
    button 2 then increments the minutes.
  14. Like
    t0mpr1c3 reacted to cubeberg in PCB prototyping services for 100+ boards   
    Elecrow, iTead and Seeed should be on your list as well.  I've used Elecrow for 50pcs runs + kitting successfully.  I know @@bluehash uses them regularly as well.
  15. Like
    t0mpr1c3 got a reaction from RobG in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    Thanks for the tips guys. I think I might look into reflowing. Can't believe the prices from OSHstencil. use the thing 5 times then pass it on.
  16. Like
    t0mpr1c3 reacted to spirilis in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    One thing I noticed with the WS2811 LED pixels is that they're a bit sensitive to soldering temperature, particularly with hand soldering irons. I had the iron touching one pad for a bit more than a second (don't recall why, think I wasn't quite sure the solder joint was secured to the LED) and something boiled/popped inside the pixel and one of the metal leads inside the pixel was destroyed.
     
    Sent from my Galaxy Note II with Tapatalk 4
     
     
  17. Like
    t0mpr1c3 reacted to bluehash in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    @@t0mpr1c3 Here is what I would normally do. If you do not have a PCB, I would just vice the LED and use steady hands.
    1. Apply flux on the pads. If you do not have it, no issue.
    2. Apply/wet one of the pads with solder. Now bring the LED onto the pad. Make sure if aligned and then wet the solder again to lock the led in its place. Now you can solder the other pads.
  18. Like
    t0mpr1c3 got a reaction from dubnet in What are you doing right now..?   
    No microcontroller stuff whatsoever.  
     

  19. Like
    t0mpr1c3 got a reaction from enl in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    LEDs have arrived. I have counted them and it is the right number. I'll test one or two tonight and if they are OK I'll ship orders of LEDs only (vicvelcro, enl, RobG).
  20. Like
    t0mpr1c3 got a reaction from dpharris in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    LED GROUP BUY CLOSED
     
    GROUP BUY FOR CLOCK PCBs CLOSED
     
    1900 WS2812Bs and 50 PCBs are on order. 1 set of 5 PCBs (to make 1 clock) are available, please sign up on this thread if you want them. Cost is $9.98. First come first served!
     
    =======
     
    As used in the LED ring clock in quantities of 120. It is a nuisance to buy 200 when you only want 120 plus a few spares. 4 lots of 125 = 500 LEDs which would cost around $85 shipped (surface) to me. 8 lots of 125 = 1000 LEDs which would cost around $165 shipped (surface) to me. 10 lots of 125 plus 50 extras = 1300 LEDs for $196.43 makes $18.89 per set of 125. After PayPal costs that's around $22 just under $20 per lot of 125 plus shipping from me (in USA) to wherever you are. Once we have enough people signed up I'll ask everyone to pay, and once everyone has paid I will order the LEDs.
     
    Datasheet
     
    If people want WS2812B's instead we could do that instead, as long as we all agree. Shouldn't be too hard to fix the LED ring clock design to handle that. I will be ordering WS2812Bs. Greg has kindly redone the Gerbers to match with some advice from RobG.
     
    Post on this thread to sign up, I'll keep a list on this post. Let's try to deal in units of 125. If you would like extras please indicate in your post. If enough people want extras we might get to the target quicker. I can also order PCBs and distribute them, but it definitely won't be worth it for less than 50 boards and it might be a bit marginal even for that quantity. which should present some kind of saving, but I'm not sure how much. 40 5x10 boards from Elecrow shipped DHL cost 4 * $12.90 + $28.26 = $79.86, or just below $10 per set of boards.
    Member      | Qty | OK with WS2812B? | PCB sets | Address | Payment Rec'd | Shipped ----------- +-------+------------------+----------+----------+---------------+-------- pyrosster | 150 | Y | 1 | Spain | Yes | cubeberg | 150 | Y | 1 | USA | Yes | dpharris | 150 | Y | 1 | Canada | Yes | greeeg | 250 | WS2812B only | 2 | Aus | Yes | vicvelcro | 125 | Y | 0 | USA | Yes | Yes marsbase | 250 | Y | 2 | USA | Yes | enl | 125 | Y | 0 | USA | Yes | Yes GeekDoc | 150 | Y | 1 | USA | Yes | dubnet | 125 | Y | 1 | USA | Yes | t0mpr1c3   | 150 | Y | 1 | USA | ---
  21. Like
    t0mpr1c3 got a reaction from jpnorair in libemb   
    Looks like some very useful libraries for STM32/MSP430G2553
     
    http://gpio.kaltpost.de/?page_id=708
     
    As used e.g. in this NRF24L01 transceiver port for ChibiOS
     
    https://github.com/omriiluz/libnrf24l01p/
  22. Like
    t0mpr1c3 reacted to simpleavr in M-Clock build, M for Minimalist, Multi-mode or Matrix   
    Are we voting for this round of POTM soon?
     
    Time to reveal my Easter Egg "game" for upvotes. 
     

     
    Source code now host on github. https://github.com/simpleavr/mclock
  23. Like
    t0mpr1c3 got a reaction from RobG in [Group Buy-18][D] WS2812 SMD RGB LEDs with integrated driver chip   
    Good news - LEDs have shipped.
     
    http://www.dhl.com/content/g0/en/express/tracking.shtml?brand=DHL&AWB=6333932953
  24. Like
    t0mpr1c3 got a reaction from GeekDoc in Magnifying glasses   
    If they fold over regular glasses I might actually be able to use those. I am extremely short sighted.
  25. Like
    t0mpr1c3 got a reaction from bluehash in Creating a C library - Steps.   
    I found this useful, both specifically about libraries and some more general themes.
     
    http://www.lurklurk.org/linkers/linkers.html
     
    This definitely filled in some gaps in my knowledge. (The command nm is really useful - who knew?!)
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