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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 the output often, but would find it was almost impossible to read the signal in time and still drive...

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 power. The boxes have been built using my latest toy: a 3D printer.

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 then realized I had to upgrade to 1.0.6/1.20 from 1.0.5/1.16. Then the example code ran fine. Here is...

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.

I certainly will report back here. I've ordered a 1m strip yesterday from Ray Wu: http://www.aliexpress.com/item/2m-DC5V-APA102-led-pixel-srip-IP33-144pcs-APA102-5050-LED-M-with-144pixels-WHITE-PCB/1906733120.html This should show up at my door within a month or so, hopefully. I also wish I...

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 APA102C comes in a package very similar to the WS2812, while the APA102 comes in a package with an...

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 power most of the time though. When using LED toys it's usually nicer to run at only 30% max capacity...

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 to take the plunge and order one from Ray Wu today. Thanks!

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

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 props. I see great strides have been made in addressing the WS2811/2812 strips using Teensy using...

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 to Europe. Not sure how I am going to have this connect to the body yet. I may put something...

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 great for that purpose, but now I need something that is bendable and more or less flat at the same...

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. Thanks for the tip on that oscilloscope Paul!

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 analyze the protocol that is coming off the LED controller remote. I've tried several libraries for...

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 the color will start shifting to red as that tends to be able to do with lower voltage. I really...

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 any other way. All I want to do is plug them into the charger with a DC jack. My power needs are...

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 series the voltage needs to be exactly right or I risk blowing up cells, and the relatively...

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 using each accelero + gyro axis to generate an 256 bit value for RGB. I'd like to reduce the "whiteness"...

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: fatal error: Common.h: No such file or directory compilation terminated. I removed the dependency...

And here are pics of the remote controller: Looks like the important looking ICs on both the remote and receiver are not generic ones. So I guess I'll just have to trial and error and hope I don't blow anything up. What I find interesting is that there are more buttons possible on the...

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 shrink-wrap from the receiver / controller to see what we have under the hood. Here's some...

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 together using Scotch tape, and cover it with transparant shrink-wrap for a strong finish. You...

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 electronics in school a long time ago and have always missed having access to a scope since then. I'm...

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 the remote control after reverse engineering the protocol, what would be a good module for the...

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 solution. I've started a new topic for that...

I have a couple of these RGB LED drivers that go over RF (433.92MHz) : http://www.aliexpress.com/item/5-24V-Mini-Wireless-RF-RGB-Controller-with-Remote-Control-for-LED-RGB-Strip-JS0200/706365687.html The remote control only works on one driver and is easily lost. So I would like to be able to...

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 I can squeeze 500mA at 5V out then I'm happy. The Sparkfun converter is not able to deliver this...

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 tried so far...

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 able to do simple stuff like move forward in the program, so a simple binary switch function is...

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 the batteries in there as well. The problem is also that the Sparkfun part is quite expensive...

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 hour's worth of burn time is enough for me. Jp3141: thanks for that, it looks really good, with...

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 cells in parallel, so 3.7V, around 1200mAh. The 5V comes out of one of these boost converters...

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.

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 less physically ready now are based on the WS2801 strips, which I want to replace with the 2811...

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 of a Teensy 3, still leaving me enough copper to solder wires onto. The main problem I still...

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 10k on the base driven from pin 14 like in your code, and 100k on the emitter. The sdFAT lib is...

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 wait to get these into my LED staffs, as I'm getting bored already with just 8 pixels per staff end...

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 /Applications/Arduino-1.0.3-teensy-1.12/Contents/Resources/Java/hardware/tools/teensy_post_compile...

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 paul staff 2652 Feb 2 14:50 . drwx------ 21 paul staff 714 Feb 2 14:50 .. drwxr-xr-x 5...

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: file changed 14:50:10: File "staff_mpu_fastspi_sd.cpp.hex". 28764 bytes, 22% used 14:50:10: remote cmd...

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 the error is more different: an immediate open/close, and also more persistent. I do eventually get...

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...

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 2516 Feb 2 13:32 /var/folders/p6/n8_p41b974qf8dzx7r_8nb2m0000gn/T/build6870987674787699379.tmp

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 [0x0-0x1c01c].com.pjrc.teensy[221]: remote connection opened Feb 2 11:27:03 pauls-MacBook-Pro-2...

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 bus (like a garbled data or clock signal interfering with being able to read from the SD card) can...

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 [0x0-0x1c01c].com.pjrc.teensy[221]: remote connection opened Feb 2 00:49:32 pauls-MacBook-Pro-2...

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 like that. I'm only starting out and my lab is still a bit under-equipped. Also I don't have a...

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 and the SD adapter is the gate of a MOSFET, which then interrupts the clock signal for the WS2801...

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 CS signal interrupt the clock signal to the 2801 strip to not have the noise come out there. This...

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 unable to get a reading out of the SD card. When I do a short jumper, it' fine. I'm now starting...