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    Sorry to be incredibly late to the party. ...

    Sorry to be incredibly late to the party.



    This is exactly the problem I ran into when trying to do RF433 remote control on my Teensy which was*driving a POV toy, and first I just tried polling...
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    Here's the latest result from my work with the...

    Here's the latest result from my work with the APA102 strip:

    https://youtu.be/CYRq9YdE2GU

    I've built a controller box that contains a Teensy 3.1 and some other modules, plus another box for the...
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    Thanks Andreas. I think your code needs to be...

    Thanks Andreas. I think your code needs to be written like this, though:


    FastLED.addLeds<APA102, 11, 13, BGR>(leds, NUM_LEDS);

    At first I couldn't get any of the FastLED lib to compile but...
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    I got the 1m APA102 strip delivered a few days...

    I got the 1m APA102 strip delivered a few days ago. Haven't hooked them up yet but excited about doing so. I will post the result here as soon as I have any.
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    I certainly will report back here. I've ordered a...

    I certainly will report back here. I've ordered a 1m strip yesterday from Ray Wu:
    ...
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    Right, so if that's true for 144 LED/m WS2812,...

    Right, so if that's true for 144 LED/m WS2812, then I would expect the APA102 in the same density to do better as far as heat goes.

    https://cpldcpu.wordpress.com/2014/08/27/apa102/ says:

    "The...
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    I'm also interested in the heat they produce, as...

    I'm also interested in the heat they produce, as this will have to go into a tight space. I'd have to read up on the power intake specs to make a calculation. I don't intend to run these on full...
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    The APA102 looks very promising. Has anyone here...

    The APA102 looks very promising. Has anyone here tried a strip yet? I see there's a library for them already: https://github.com/cpldcpu/light_ws2812/tree/master/light_apa102_AVR

    I think I'm going...
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    I agree. I think I'll stick to 144 LEDs/m strips...

    I agree. I think I'll stick to 144 LEDs/m strips for now, then. It's already quite a mindboggling density.
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    looking for very high density LED strip

    Hi all,

    after a break I'm about to embark on a new LED toy project this winter. I'd like to go for a much higher resolution this time, after having worked with W2801 a few years back on some spin...
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    Thanks for the tips and the links. I think...

    Thanks for the tips and the links. I think something like the rolls is probably best to start with. Easy to just cut into the size I need without much work. I'm going to see if I can get this shipped...
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    I'd like to revive this thread a bit since I'm...

    I'd like to revive this thread a bit since I'm preparing for a new LED project. What I've been using so far as diffuser material on another LED project are these old slide film canisters which are...
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    I finally got my hands on a DS1104Z! I haven't...

    I finally got my hands on a DS1104Z! I haven't had an oscilloscope to work with for many years and am excited about using it for the protocol analysis of these RF transmitter/receiver pairs.
    ...
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    Okay, I have the 433MHz receiver and transmitter...

    Okay, I have the 433MHz receiver and transmitter pair now, and I've been able to send and receive between a Teensy and an Arduino Uno using the VirtualWire library.

    What I would like to do now is...
  15. The LED strip wants 5V but can do with a little...

    The LED strip wants 5V but can do with a little less. If the voltage drops below 3.3V the Teensy will start to cause lots of noise on the data line, resulting in erratic behavior of the LEDs. Also...
  16. Right. My 10440 batteries are very tightly packed...

    Right. My 10440 batteries are very tightly packed into an aluminium rod with soldered wires just barely fitting right next to them. I really want to avoid having to take them out of access them in...
  17. markvr: I thought about that, but it is not an...

    markvr: I thought about that, but it is not an option for me as I would then not be able to charge the batteries simultaneously. This is far easier and safer when they are in parallel. When going in...
  18. I haven't implemented any of the latest code...

    I haven't implemented any of the latest code suggestions yet, but I did make a video last night of what I have so far:

    http://www.youtube.com/watch?v=ob8jcgis0LU

    Basically what I'm doing is...
  19. Hey aedile thanks for this idea, I think it may...

    Hey aedile thanks for this idea, I think it may be very helpful and I want to implement it. I've copied your code but I'm missing your Common.h:

    In file included from Color.ino:6:0:
    Color.h:9:20:...
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    And here are pics of the remote controller: ...

    And here are pics of the remote controller:

    http://img96.imageshack.us/img96/9614/jsm7.th.jpg
    http://img547.imageshack.us/img547/8118/z671.th.jpg...
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    Okay, I've put in a request with the EU reseller...

    Okay, I've put in a request with the EU reseller of Rigol for a DS1074 scope. So that's underway, but in the mean while I want to see where I can get without that, so I've started by taking off the...
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    I've been using old Fuji slide film canisters...

    I've been using old Fuji slide film canisters that I still had laying around. I believe it's polypropylene, I use it for my LED staffs as they fit nicely around the whole construct. I then tape them...
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    Well you got me thinking it's time I invest in a...

    Well you got me thinking it's time I invest in a good scope anyway. I like the Rigol link you sent and those are sort of within my budget. This will be for many projects to come, and I did...
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    Thanks Paul, that's some good ideas! I've been...

    Thanks Paul, that's some good ideas! I've been postponing buying a scope / logic analyzer for my electronics lab but it appears now is the time to do so. Any recommendations there?

    As for building...
  25. Thanks for your reply. Indeed the problem stands...

    Thanks for your reply. Indeed the problem stands on how to control 2 or more devices via bluetooth simultaneously. As I am only looking for one way communication, I am now thinking RF is the superior...
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    driving RF from Teensy instead of RF remote?

    I have a couple of these RGB LED drivers that go over RF (433.92MHz) :
    ...
  27. Yeah - I am not expecting miracles, but for the...

    Yeah - I am not expecting miracles, but for the price of these modules I'm willing to experiment. I've ordered a number of them and will let y'all know how it goes and which ones work best for me. If...
  28. Hi again. I'm back from a break on my LED...

    Hi again. I'm back from a break on my LED projects and I have only just now ordered the part that hpyle pointed me to, but I am also having some success with some of the the Pololu range that I have...
  29. need to remote control 2 Teensy 3.0s, bluetooth?

    Hi, I'm thinking of how I can establish remote (wireless) control for my Teensy 3.0s as part of a LED staff project I've been working on last winter and am now picking up on.

    At first I want to be...
  30. Jp that would not be practical. Already I have...

    Jp that would not be practical. Already I have been thinking over the wiring quite a bit to make it as efficient as possible and I can't really afford another power line running through the tube with...
  31. Qumefox: I'm using the Ultrafire / Trustfire ones...

    Qumefox: I'm using the Ultrafire / Trustfire ones and they indeed are only around 300mAh. But I'm using 4 of them, so that gives me around 1200mAh altogether. I can fit some more in if needed. An...
  32. 5V step up converter needed for driving Teensy + WS2811

    I've been working on an LED toy for a while now, using a WS2801 strip getting me 48 pixels. I am using around 350-400mA at 5V including powering the Teensy 3. My power is a couple of li-ion 10440...
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    virtualdave: I see 190mA to my 240 LED strip when...

    virtualdave: I see 190mA to my 240 LED strip when all the lights are off. So not quite 1mA per pixel, but definitely some current.
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    I've just gotten my first WS2811 based LED strip...

    I've just gotten my first WS2811 based LED strip in (60 LEDs/m) and I totally love it, as it works just wonderful with the adapted Adafruit_NeoPixel library.

    However, my LED staffs I have more or...
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    external USB connector on Teensy 3?

    As I've been making good progress with my LED staffs, I want to start a hoop project as well using a Teensy 3. I already found that to make it fit inside the tubing I am using I can saw off the edges...
  36. Okay, I've followed your instructions you gave me...

    Okay, I've followed your instructions you gave me via youtube (I'm "tubeneep" there) and I now have a setup that keeps working. Not using a MOSFET anymore but just a 2N2222, seems to work best, with...
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    Very nice! And thanks for the video. I really...

    Very nice! And thanks for the video. I really enjoyed that "trip" ;-)

    I'm going to order a roll of these myself in a month or so, as I currently don't have the time to play with them. But I can't...
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    I killed the teensyloader and also some runaway...

    I killed the teensyloader and also some runaway processes:



    pauls-MacBook-Pro-2:Arduino paul$ ps auxww|grep teensy
    paul 16525 67.1 0.0 599640 364 ?? R 2:53PM 2:42.06...
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    And here is the directory at that time: ...

    And here is the directory at that time:



    pauls-MacBook-Pro-2:Applications paul$ ls -la /var/folders/p6/n8_p41b974qf8dzx7r_8nb2m0000gn/T/build7158115397884075246.tmp
    total 2680
    drwxr-xr-x 78...
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    And this is what I get for the earlier error, in...

    And this is what I get for the earlier error, in the Verbose Information window:


    14:50:10: remote connection opened
    14:50:10: remote cmd: "comment: Teensyduino 1.12-beta12 - MACOSX"
    14:50:10:...
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    So Teensyduino here is actually just the...

    So Teensyduino here is actually just the installer. On the Mac it's called just "teensy", and then it's under "Window" -> "Verbose Information".

    I just fired up my beta 12 app copy again, and now...
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    Whoops I only now see you responded, Paul. ...

    Whoops I only now see you responded, Paul.

    Where can I find the Teensy Loader's Verbose Info?

    Sorry, still very new to all this...
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    BTW, when I go look to see if the dir is there,...

    BTW, when I go look to see if the dir is there, it exists:

    pauls-MacBook-Pro-2$ ls -ld /var/folders/p6/n8_p41b974qf8dzx7r_8nb2m0000gn/T/build6870987674787699379.tmp
    drwxr-xr-x 74 paul staff ...
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    Same thing happening in 1.11, and it seems to be...

    Same thing happening in 1.11, and it seems to be getting worse. Sometimes I have to repeat the compile shortcut many times before it "takes"


    Feb 2 11:27:03 pauls-MacBook-Pro-2...
  45. It does indeed seem to make things better, but I...

    It does indeed seem to make things better, but I need to do some more testing to see if the lockup problem is really staying away.

    What baffles me though is that apparently a problem on the SPI...
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    Not sure if this has been reported yet, but every...

    Not sure if this has been reported yet, but every so often I get a temporary directory not found, resulting in an "Error communicating with Teensy loader".


    Feb 2 00:49:32 pauls-MacBook-Pro-2...
  47. What I'm doing is I have the SCK drive a MOSFET...

    What I'm doing is I have the SCK drive a MOSFET gate to sit in between the SCK signal from the Teensy to the WS2801 strip.

    Ah right a logic gate. I need to start ordering some more standard parts...
  48. I've done some more tests. When connect...

    I've done some more tests. When connect everything up on the breadboard, no problem. So this is:

    SD adapter -- SPI -- Teensy -- SPI -- WS2801 strip

    Connected to the CS wire between the Teensy...
  49. It turns out that I can reasonably well run both...

    It turns out that I can reasonably well run both the 2801 strip and the SD adapter in the same program, although I've used the standard Arduino SD library. I've done a similar thing where I let the...
  50. So doing some tests using crocodile leads in...

    So doing some tests using crocodile leads in between SCK and DOUT reveals me that there are some definite maximum lengths that the wires can become. When I use a 40cm crocodile lead in between, I'm...
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