Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: Electric Potato

Page 1 of 2 1 2

Search: Search took 0.00 seconds.

  1. Can the T3 Bootloader Implement Variations of the MK20 such as this?

    Hey guys

    Just wondering if the T3 Bootloader would work for an MK20DX128 like this https://www.digikey.com/en/products/detail/nxp-usa-inc/MK20DX128VFM5/3507507

    Thanks!
  2. T3.5 Ignores Button Press, Not Seen by Computer

    I've got a new T3.5 with a couple of problems:

    First, when connected to the computer, pressing the button has absolutely no effect, I attached a video showing this; it just keeps blinking. ...
  3. yes they are in stereo, that was it! Thanks, I...

    yes they are in stereo, that was it! Thanks, I totally forgot that I used to collapse my files into mono before loading them into flash
  4. PlaySerialFlashRaw is playing at half speed, T3.5

    Hey guys,

    I'm using the Audio library on a T3.5 and have a W25Q128 flash chip connected (no audio shield but using those same pins)
    When I use AudioPlaySerialflashRaw my files are playing back at...
  5. Okay I figured it out...friggin VOUT33 was weakly...

    Okay I figured it out...friggin VOUT33 was weakly connected and I guess when I probed it the first time I put some pressure on it that made it register as connected to the 3.3V line, but after...
  6. Also I'm not sure why, but if I short the MKL02...

    Also I'm not sure why, but if I short the MKL02 reset pads to ground with my voltage probe touching RESET_B, it goes from .08 to 0, and then when I unshort it jumps to 3.3V and stays there, but only...
  7. I unfortunately don't have an oscilloscope at the...

    I unfortunately don't have an oscilloscope at the moment, but given that RESET_B reads .08 instead of 0, I was thinking that there are probably some type of blips occurring on it? As in this thread:...
  8. hey thanks jon yes I have, someone described...

    hey thanks jon yes I have, someone described seeing low voltage on the reset pin of the mkl02 but it seemed like the answer in that thread was that the mkl02 was blank, if I understood it correctly.
  9. You know I was just kind of assuming that crystal...

    You know I was just kind of assuming that crystal was included on the T3.5/3.6 since there was space for it, but that it was ultimately optional, guess I shoulda made sure of that beforehand...
  10. Help Troubleshooting Custom T3.5 using 100 pin LQFP Package??

    Hey guys,

    I'm troubleshooting a custom T3.5 that uses the 100-pin LQFP variant of the MCU (MK64FX512VLQ12) instead of the 144 MAPBGA.
    Everything looks good but my computer won't respond to the...
  11. Okay cool, thank you Paul!

    Okay cool, thank you Paul!
  12. T3.5 Schematic Question: purpose of L1 and D1

    Hey guys,

    Anybody know the purpose of L1 and D1 circled in red below on the T3.5 schematic?

    23492

    I've built a number of custom T3.2's and would like to make a custom T3.5, just curious as...
  13. Ah well I'm glad to know that it's in the works...

    Ah well I'm glad to know that it's in the works and obviously Teensy continuing to exist is a much bigger priority lol. Thanks for all the hard work Paul!

    Chip I'll check out that library, thanks...
  14. Plans for a Basic Compressor for Audio Library?

    Hey, just wondering if a simple audio compressor object is planned for the Audio Library? It's a vital tool for signal processing and for me is the only thing missing from the amazing library (aside...
  15. Custom T3 question: are any of these components removable?

    Hey guys,

    I'm making a custom T3 to put in a very small case and am wondering if any of the components circled in red can be removed:

    20342

    Not sure if they all are needed for the ADC, or if...
  16. Thanks for that great info! That clears up a lot....

    Thanks for that great info! That clears up a lot. That article is extremely helpful too.
    I don't have a T4 at the moment, but I added this to my sketch

    #define nrf_spi_channel 1 //if using...
  17. Use different MOSI pins at once on T4.0?

    Hey guys,

    I'm trying to resolve an old issue with using T3.2 + nrf24l01 + audioShield + SerialFlashRaw at the same time. Basically, when SerialFlashRaw is playing a sample, it causes the nrf to...
  18. Replies
    47
    Views
    8,231

    Suzanne on a Teensy! That's so cool

    Suzanne on a Teensy! That's so cool
  19. Ah that makes sense, thank you!

    Ah that makes sense, thank you!
  20. About Using P-Ch Mosfet/Diode to Switch between USB power and Battery Power

    Hey guys,

    I'm wondering, is there a major practical difference between these two methods of switching from battery to usb power:

    P-ch MOSFET with Shottky diode:
    18661

    Just Schottky...
  21. Thanks! These are from alibaba and dont have...

    Thanks! These are from alibaba and dont have any info unfortunately. Ill give it a shot with the mcp and see how they do
  22. Advice on Charging a 3.6 Volt Lion Coin Cell

    Hi guys, Im trying to determine the best IC to use for charging a small 3.6V ~30 mAh lion coin battery. Ive found mixed opinions regarding wether or not you can charge a 3.6V battery in chargers...
  23. Replies
    5
    Views
    1,711

    Can I power a Teensy 3.2 With 4 AAs?

    I know the official max Vin is 6V and that although the regulator chip can handle up to 10V, it isnt recommended due to thermal dissipation. But in practice, would I risk killing my T3.2 with 4...
  24. Audio Library Causing Phantom Packets With NRF24l01+

    Hey guys,

    I'm trying to troubleshoot a build that uses a Teensy3.2+AudioShield+nrf24l01 radio module. This unit receives simple 2 byte packets from another T3.2 and uses them to select a drum...
  25. Replies
    357
    Views
    101,950

    okay thanks!

    okay thanks!
  26. Replies
    357
    Views
    101,950

    wav2trw isn't working for me: 'Not a Valid Win32 Application"

    When I run wav2trw.exe on Windows XP I'm getting an error saying it's not a valid Win32 application. I also tried running it on a Windows 10 machine and it says it 'can't run on my PC'.

    Meanwhile...
  27. Okay problem solved: The code I included in my...

    Okay problem solved: The code I included in my second post works fine but I was using 85% of dynamic memory and at runtime my string variable was getting scrambled to where it was blank if I tried...
  28. Hey thanks for the help! Unfortunately it still...

    Hey thanks for the help! Unfortunately it still isn't working... based on what I've read about c_str() this should be correct, no?



    String filename = "K014.RAW";...
  29. How to pass a String variable into AudioPlaySerialflashRaw::play() ??

    Hey guys,

    Maybe a silly question but I can't figure out how to assign a filename to a String, say "KICK014.RAW" for example, and then pass that String into AudioPlaySerialflashRaw :: play(const...
  30. Changing analogWriteFrequency Breaks nrf24l01+ Wireless

    Hey guys,

    This has been bugging me, I have an nrf24l01+ radio on a teensy 3.2 that runs a motor thru a tip120. The motor is speedy and responsive if I change analogWriteFrequency to something...
  31. Thanks for the responses guys! I figured out the...

    Thanks for the responses guys! I figured out the problem, it was silly. I had this malformed comment line at the very top of the page before the include statements :

    ***//dont forget to open the...
  32. DMAchannel.h won't compile in newer version of Arduino

    Hey all, I'm trying to run copyFromSD and I'm getting an error from DMAchannel.h:


    C:\Program Files\Arduino\hardware\teensy\avr\cores\teensy3/DMAChannel.h:46:1: error: expected unqualified-id...
  33. I've mounted another W25Q on a different audio...

    I've mounted another W25Q on a different audio board and same problem...The test returns negative results, the same ones you get if there's no memory chip there at all. The only difference I can...
  34. Hey I did that originally, it didn't do anything...

    Hey I did that originally, it didn't do anything because it detected that there wasn't anything at all on the chip:

    Flash Memory has 0 bytes.
    Erasing ALL Flash Memory:
    estimated wait: 0...
  35. W25Q128FV SPI Memory Chip Discontinued, Should This 'Direct Replacement' Work Fine?

    I went to buy a W25Q128FV as prescribed for the Audio Shield and found that it's no longer available. DigiKey says this is a direct replacement:
    ...
  36. Hey so I had about 18 inch leads coming off the...

    Hey so I had about 18 inch leads coming off the mic because of how it was situated in my device, and I tried just jamming the 2 legs of the mic straight into the GND and MIC inputs, and that seemed...
  37. Hey it's just a pretty basic mini electret: ...

    Hey it's just a pretty basic mini electret:
    ...
  38. My mic input into the audio shield is super distorted/hot

    Hey guys,

    Im using the audio shield and am getting major distortion/crazy high gain with electret mic audio entering via the AUDIO_INPUT_MIC
    input.
    Basically the mic signal is super hot,...
  39. Connecting a usb game controller to a teensy 3.2

    Hey guys,

    I want to connect a usb video-game controller to a teensy 3.2 in order to launch audio samples and control lights. My plan is to simply wire a female usb jack onto the 4 underside pads...
  40. Hey Paul, tested everything and it works fine,...

    Hey Paul, tested everything and it works fine, even analogRead, so no harm done I guess, thanks for the help man
  41. Knocked an SMD component off a T3.1, can I still use it?

    Hey guys,

    I got too rowdy and knocked off one of the SMD components from a Teensy 3.1 (circled in yellow):

    7591

    I took a moment to try and locate it in the schematic but then figured I may...
  42. Hey Paul, I edited the main question to...

    Hey Paul,

    I edited the main question to make it as clear as I possibly can. Sorry it turned into a confusing report; my half-baked attempts to fix
    the problem are probably pretty irrelevant...
  43. Hey Paul, I threw together a video (in the...

    Hey Paul, I threw together a video (in the original post) that I hope gives a good demonstration of my chief problem: that I can't get sufficient FM modulation on Teensy. It shows the maximum amount...
  44. Okay I added a test sketch to the main post and...

    Okay I added a test sketch to the main post and am getting some demo footage together, I'll probably post it some time before midnight
  45. mxxx- I just commented out lines in mixer.h and...

    mxxx- I just commented out lines in mixer.h and sine.h that clamp the max gain, ie ' if (n > 1) n=1 '. Like I said, it didn't have spectacular results so I'll check out the other things you...
  46. Teensy FM Synthesis Problems, not enough modulation

    Hey gang,

    I've been trying to implement some algorithms from yamaha's DX7 on Teensy 3.1 using its sineModulated object but have had difficulty getting
    the correct results. After a lot of...
  47. Replies
    7
    Views
    2,623

    Solved it

    Well, I solved the problem for my current device by just removing the line "radio.openReadingPipe()" from setup(). Simple enough. I hadn't really tried running the full system without that line...
  48. Replies
    7
    Views
    2,623

    Teensy LC + nrf24l01 = BRICK

    Hey all,

    I've got an nrf24l01 wireless sketch running smoothly between two T3.1's. I'd like to change the transmitter to a Teensy LC, but have found that simply dropping the new board into the...
  49. Slide Potentiometers with Contacts on Handle

    Hey guys,

    Does anybody have any knowledge of slide potentiometers that have integrated contacts on the handle of the wiper, allowing a little circuit to be attached to the handle and powered...
  50. Yeah that looks legit, and for lcds, just search...

    Yeah that looks legit, and for lcds, just search ebay for HD44780 and you'll find tons of other people selling em like this one:...
Results 1 to 50 of 82
Page 1 of 2 1 2