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  1. Replies
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    Okay :( I saw it's not updated for some time,...

    Okay :( I saw it's not updated for some time,
    With "Serial" chosen it's not working properly with and will reset before going through setup();

    The old version of snooze without the...
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    Thank you :) I'm planning on updating the...

    Thank you :)

    I'm planning on updating the project using Teensy 4 this year
    Should I post on a new thread, or reply under this thread?
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    Hello, not sure if this is related problem ...

    Hello, not sure if this is related problem

    Snooze examples (this case: Snooze\examples\deepsleep\button_hold_wakeup )
    not compiling with T3.6/LC/T4, with USB Type: "MTP Disk experimental" ...
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    you're right, your wires should work I use a...

    you're right, your wires should work
    I use a MCP73831 to charge my portable teensy device, made with LC, connection is similar with your picture above,

    However you can test the connections...
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    Sure, why not I did made some version using...

    Sure, why not
    I did made some version using teensy LC and its fine. using SD card/apa102
    It would be restricted to its SD reading speed, but still can use DMA for apa102 drawing
    could reach up to...
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    Hello, I use nRF24 module a lot too, the...

    Hello,
    I use nRF24 module a lot too, the library is fine with LC, but I've not tested with T4 yet.
    Not sure if the RF24 library did recognize it as using SPI pin, or soft SPI
    if the latter,...
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    tested with another example here using onboard...

    tested with another example here using onboard LED for feed back


    #include <Snooze.h>

    SnoozeBlock dummyConfig;
    SnoozeSPI sdCard;
    SnoozeDigital digital;
    SnoozeTimer timer;
    SnoozeUSBSerial...
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    SnoozeTimer timer; SnoozeUSBSerial usb;...

    SnoozeTimer timer;
    SnoozeUSBSerial usb;
    SnoozeBlock config_teensy2(usb,timer);






    Serial.println("ready to sleep");
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    SnoozeUSBSerial usb; ... ... #if...

    SnoozeUSBSerial usb;
    ...
    ...
    #if defined(__IMXRT1062__)
    SnoozeBlock config_teensy40(usb, digital, compare, alarm);

    Hi, I'm still testing too so I cannot give a concrete answer, but looking...
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    hadn't following for a while, I did this...

    hadn't following for a while,

    I did this before with T3.6, an external button interrupt was used to break flag.
    it should break after a button is clicked and a mtpd.loop() is returned
    I never...
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    Yes it already could. However SDIO interface is...

    Yes it already could.
    However SDIO interface is not avail in teensy 3.2, so it will transfer file at a significant slower rate.
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    First my codes, should need to use some my...

    First my codes,
    should need to use some my specific libraries,
    (though if I remember correctly, the same library with 1.8.7 compiles too)
    this was the full folder of my used version and libraries,...
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    hi alezarate, Sure, I shall publish my work in...

    hi alezarate,

    Sure, I shall publish my work in a while.

    You are correct,
    I'm just not yet convinced if I can't find any commercial value with my design
    It didn't gave me much over two years...
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    Hi Frank, you can find an older version for...

    Hi Frank,
    you can find an older version for arduino nano here :
    https://github.com/Alan-NTHU/POV-Venti---flow-art

    currently I'm not planning on publishing Teensy version of code yet, however you...
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    Hi Janezek, yes both the youtube links is...

    Hi Janezek,

    yes both the youtube links is visit-able, I'm just not sure what's the glitch but I see it clearly now
    the data transfer rate or even frame per second could do something to the ws...
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    Hi Janezek, not sure what your glitch is like,...

    Hi Janezek, not sure what your glitch is like, can you be more specific? or is there a normal group to compare with?

    I saw you have 1531 pixels, if you're using ws pixels you might need to care...
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    Thanks, hope you have progress on your work too!...

    Thanks, hope you have progress on your work too!
    at first I've think ROM at chop is not enough so I focus on using a SD, very well established library, and seek on ROM chip but not successful
    its...
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    Hi, My code attachment on #3 should work, please...

    Hi, My code attachment on #3 should work, please give it a try
    I no longer use the TLC5947 or TLC59711 driver in my later version of POV.
    but the library and code should work, you may look into it...
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    Hello, Happy new year community :) I have did...

    Hello, Happy new year community :)

    I have did another build of POV ( is this still POV anyway? lol) for a drum.
    featuring Teensy LC and 4m (1m*4) of apa102(60pixel per meter) in parallel of...
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    Hello, following also, had anyone successfully...

    Hello, following also,

    had anyone successfully tested MTP on teensy 4.0?

    Thanks
  21. Replies
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    I use some of a elapsed microseconds and use...

    I use some of a elapsed microseconds and use other things to do that,
    and check if time is favored or not before FastLED.show(), or DMAshow(), whatever draws the LED
    this part of my


    unsigned...
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    @Janezek I suggest using octows2812 library,...

    @Janezek

    I suggest using octows2812 library, available at PJRC website libraries
    which splices your LED chain into 8 parallel chains and uses DMA for maxima speed

    but you'll need more setup on...
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    @abrownmn : did you meet any problem using with...

    @abrownmn : did you meet any problem using with the hardwares?

    Not sure if cap/resistors matter,
    I did add a 47uF between my power battery
    teensy have enough cap on the board
    and apa102 were...
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    Sorry to interrupt, sharing my work on POV :) ...

    Sorry to interrupt, sharing my work on POV :)

    Here's my latest POV, 36 pixels with Teensy LC setup, surely it should run well with Teensy 3.6 I think? I'll do that later in JULY.
    I've completed...
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    @abrownmn : freezing sounds like a power supply...

    @abrownmn : freezing sounds like a power supply bug,
    if you have your image squeezed, you can adjust settings yourself for a good effect.
    I recommend at a speed that repeats letters "ABCD..." less...
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    Hello, Its been nine months,I've completed adding...

    Hello, Its been nine months,I've completed adding on nrf24 module into my POV and achieved wireless synchronize,
    and also a easy version as a hand LED-stick.
    I can also recommend nRF24 module for...
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    apa102c and apa102 (or sk9812 from China clone) ...

    apa102c and apa102 (or sk9812 from China clone)
    those use SPI wires are probably all usable with FASTLED library with apa102 setup,
    if you were looking for a source, I know the origin company...
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    Hello, did you make it well? Now I have...

    Hello, did you make it well?

    Now I have trouble using nrf24 with SD card on the same SPI port of LC :\
    So looking around if anyone meet this problem too.
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    hello, checking in here. Sorry for reviving,...

    hello, checking in here.
    Sorry for reviving, just thinking about the same thing :
    the libraries were hard-coded to SPI0 and need work to use in SPI1

    in my case I probably will be fine to use SD...
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    glad it worked, switch your line from...

    glad it worked,

    switch your line from
    FastLED.addLeds<APA102, data, clock, BGR >(currentLED, totalLEDs);
    to
    FastLED.addLeds<APA102, data, clock, BGR, DATA_RATE_MHZ(8)>(currentLED, totalLEDs);...
  31. Replies
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    Where did you went wrong, does it compile? or...

    Where did you went wrong, does it compile?
    or just not showing intended picture at all?
    you have a working example so the hardware should be fine I guess,

    however your example from adafruit...
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    @Paul Thanks I didn't notice the 6-bit / 12-bit...

    @Paul
    Thanks I didn't notice the 6-bit / 12-bit DAC were different modules.
    I first see the comparator used as wake up source in snooze library, and can use some DAC reference voltage to compare.
    ...
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    Hello, not sure if this question related, I...

    Hello, not sure if this question related,

    I see DAC could be used as a comparator source from datasheet.

    though DAC cannot use AREF as a reference,
    can DAC work as an analog reference,...
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    Not sure if 2020 strips were available yet but I...

    Not sure if 2020 strips were available yet but I did source mine here. Last year they seems to be on tesing and not widely available.
    You can also find details of Fritzing apa102 LEDS on this post
    ...
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    my LC&nrf works fine with direct power from 3.3V...

    my LC&nrf works fine with direct power from 3.3V on LC and pin 8,9 as CE/CSN, 11,12,13 as SPIs, 15 as IRQ.

    I first thought it was related to capacitors , but not all cases?

    my code first didn't...
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    Hi guys, I recently just met some problem with...

    Hi guys, I recently just met some problem with that related,

    from my experience the nrf module could not run faster than 8Mhz,
    I once had a uno run at 24Mhz, that divides to 12Mhz to SPI I guess?...
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    @sschiesser I think something key was written...

    @sschiesser

    I think something key was written in the MTP library, but the library is relative simple to edit
    guess you can probably modify somewhere in...
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    it is safer and stabler as they work on different...

    it is safer and stabler as they work on different voltage by datasheet.

    If you don't shift the level, you have to take your own risk that they don't work as intended
    By far I didn't meet any...
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    if you had extra buttons or time to work on, you...

    if you had extra buttons or time to work on, you can make the brightness adjustable after programmed. I use such settings to swap between daylight and night.

    I plan to solder all the possible...
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    @masterslave wow, there are so many new pixel...

    @masterslave

    wow, there are so many new pixel shops today :\
    guess thanks to widely available pixel strips, and the maker culture.

    not yet,:p:p I'm investing on my low-power radio pairing...
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    @masterslav if your program is not needed to...

    @masterslav

    if your program is not needed to upload for your user, you don't need to leave the button reachable

    otherwise,
    you can line the program pin from the board out to ground through...
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    @embedded-creations thanks for the link! It's...

    @embedded-creations

    thanks for the link! It's useful for anyone would make their own POV

    I use my own board for many reasons,
    preferred density/count and size,
    there is also special designed...
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    @gfvalvo Did, but not deep As I never used any...

    @gfvalvo
    Did, but not deep
    As I never used any RF module before
    I don't understand which mode/state does it refers to (power down/standby?), and if it fits my requirements
    I don't recognize...
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    Thanks for suggestions guys, I just ordered some...

    Thanks for suggestions guys, I just ordered some of nrf24 modules.
    Since my project is a battery project without a hard-wired switch.
    Mainly my questions falls on a module's quiescent currency or...
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    Looking for a start on choosing RF module

    Hello community,

    I'm looking forward to add Radio controll / synchronize to my teensy LED project.
    I am totally new to RF module and used none before
    just did some search and read some data with...
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    Both SD/Sdfat library from teensyduino is already...

    Both SD/Sdfat library from teensyduino is already usable with T3.5/3.6's onboard SD with SDIO features,

    You can just use any example with the CS pin set to BUILTIN_SDCARD
    as...
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    Hi guys, I got a new score on refreshing rate. ...

    Hi guys,
    I got a new score on refreshing rate.

    14634
    this doge.bmp is a 24bit bmp with a width of 80 pixel and gets a horrible 3900 FPS, that squeezes the image
    okay, when it goes to DMASPI it...
  48. Replies
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    @gerhards congrads, your first proj is POV with...

    @gerhards
    congrads, your first proj is POV with apa102-2020, and even with IR controll, cool, I think 144 LEDS might be too much for some cards,
    also you'd might need to find a faster card for...
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    I just compiled it with my Arduino 1.85 newest...

    I just compiled it with my Arduino 1.85 newest build and its compile-able .

    It is a less_featured version back in 2016_MARCH. Calling it "corrupted" might be wrong as its only less_featured with...
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    Hello community, I've rearranged some of my...

    Hello community,
    I've rearranged some of my script (of DMASPI) so it can compile with latest Arduino 1.8.5 and Teensyduino 1.42
    I am not good at making library, so I made them into examples,
    This...
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