kd5rxt-mark

I've been reluctant to write on this thread, because it really is about drama between Adafruit and SparkFun, or perhaps between Phil/Adafruit and a number people may or may not actually be connected to SparkFun. I have some strong feelings...

Additionally, while the specific context matters, I believe phases "version of Teensy" or "variant of Teensy" for products not from PJRC are extremely problematic.

Running Windows 11 Pro Version 25H2 (OS build 26200.7263) on my HP Small Footprint workstation (I'll install on my main ASUS gaming laptop tomorrow & report those results separately). Got warnings that are visually the same as reported by...

Well, I really hoped that it would not escape you, but, you missed the point. ... ... Correct & no disagreement (that it possibly affects users and developers). ... ... Again, correct, but here's where your understanding falls rather short...

@ptorrone: I'll try to be very clear, and concise (I continually write/talk too much !!). 100% of your rant, from the very first OP to this most recent post, and everything in between, most certainly & much more properly, belongs on the...

Hey all! Here's a quick project I made, and kind of a PSA for those that don't know. You can use the Teensy's USB Host connection to convert USB devices (keyboards, game controllers, mice, etc.) into MIDI controllers. It works on both Teensy...

So you've come here on the Teensy forum to advertise your new products meant to compete with Teensy?

@YasarYY: If you haven't already done so, adding the following to your sketch may be beneficial: If your code (or any included libraries, etc.) encounters an exception (e.g. NULL pointer reference, etc.), it will automatically reboot, and you...

@clement_vrd: For the "blown aspect of the note", you could try mixing in some white and/or pink noise (you would very likely need to both filter the generated noise & apply an envelope generator to it to get the desired "air sound" in the right...

TRANSLATION (by translate.google.com): Hello, Do you have any solutions for making a realistic audio synthesis of a Clarinet with the teensy 4.1 I've already tried codes, but I never got anything conclusive. @clement_vrd: I have created a...

Sketch code ?? It is almost impossible to give any kind of meaningful advice without any clues about what code you are executing !! Mark J Culross KD5RXT

@alasor31: Welcome to the world of "you can make this processor do anything you want !!" For your particular application, I would recommend taking a look at using the BOUNCE library, as it will efficiently take care of handling any switch/button...

I've used the <PowerBoost 1000C Charger> from Adafruit successfully in several of my portable projects (hopefully, you will be able to get & use it in the future). This module will take care of boosting the output voltage from the LIPO battery...

Absolutely no problem at all. This particular pain has been shared by many, myself included !! Mark J Culross KD5RXT

@Nanoprecision: Comment out the while(!Serial); line in your setup(). Otherwise, with this line uncommented, your sketch will wait (forever) at that point for the Serial Monitor to be connected. Mark J Culross KD5RXT

watching . . .

@amii: Double the number of audio memory blocks allocated to 160 & see if behavior changes. Mark J Culross KD5RXT

@mskl99 (Mike): If you have wired things in the typical fashion, the signals mentioned above (MOSI, pin 11 on the Teensy & SCK, pin 13 on the Teensy) will be the ones most likely to be ringing (ringing: you'll see where the base-level square...

@mskl99 (Mike): Do you have access to an o-scope ?? You might take a look at the clock & data signals between the display & the Teensy to see if you see any signal bounce/ringing. If so, you could try putting a 100-ohm resistor in series with...

With that (BLINK does not turn the LED off) new info, a couple of quick possibilities come to mind: 1) The internal drivers for pin 13 are blown (worst case, which can't be fixed), 2) your Teensy has some kind of conductive short (solder ball...

@Elf: What sketch is running on your Teensy ?? What external hardware do you have connected to the Teensy (is anything external connected to pin 13) ?? Can you load the BLINK sketch & does the LED stay on then ?? Mark J Culross KD5RXT

Is it not the case that the following will always need to be considered when assessing interrupt jitter: 1) fact: a higher priority interrupt (lower interrupt number on the Teensy) will always block a lower priority interrupt, and therefore...

[ EDIT: I see that @PaulStoffregen beat me to the punch !! ] Notice that the Teensy Audio Adapter does not have any capacitors between the SGTL5000 & the headphone jack. Also take note of the statement on the snipped example schematic that you...

@jsnow: Nice project & great sound. If you'd like to investigate a Karplus-Strong object that allows modulation/tuning, take a look at <this> thread. You can find the updated source (specifically synth_karplusstrong.cpp &...

@DrM: In my TeensyMidiPolySynth (TMPS), I have both a T4.1 running at 600MHz (display / MIDI / debug / USBhost) & a T4.0 running at 816MHz (audio / USBaudio / debug), each mounted on a 7" x 9" PCB, all enclosed in a 3-D printed 10" x 7.5" x 3"...

A single backslash '\' is being interpreted as an escape sequence. Maybe try using double backslash '\\' as follows (i'm away from my Teensy boards, so this is compiled only, & untested/unverified to work): String B_path[10]; String Str_A =...

@ifrythings: Is the CrashReport repeated/reported every 8-10 seconds, or is it only reported once when a message wake-up is attempted ?? Mark J Culross KD5RXT

https://github.com/TeensyUser/doc/wiki/ECAD

Currently shows in-stock <here> for T3.x.

If I understand your question correctly, you might try opening Device Manager. Make sure to expand the "Ports (COM & LPT)" area, then see what shows up in that list of ports when you plug your Teensy device in. Hope that helps . . . Mark J...

@charnjit: Did you follow the required advice in post #18, post #21, & <post #22> regarding changing the PID each & every time that you made a change (to get around Windows' undesirable caching of configurations) ?? Without making that specific...

Maybe <this> post provides the answer (not possible due to hardware limitations). And <this> post has additional info that may be useful/applicable. Mark J Culross KD5RXT

The posts by @Cuble1998, all posted very closely together in time, seem very bot-like, but I'd like to be either very right or very wrong with that guess. So, as an attempt to make sure that you are human, please post a reply with an...