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Does also look good and super easy to use but it seems to be targeted at larger machines? The one I linked is explicitly done for Cortex M processors. Don't know if it makes a difference though. Need to wait for my...

OK: it seems I have to install the latest teensyduino 1.54 beta-7 in order to make the microSoundRecorder compile! It works now! Not sure if I understand why this is so, but good to know there is a way to make it...

Actually yes, on and off thought about but something always distracted me. Just took another look and found this one as well: https://create.stephan-brumme.com/toojpeg/ == it has some good references.

Quick question... I looked at the Node Red website and it appears the only place ports can be placed on a node are left (in) and right(out). However, it also says you can only have one input port, and the Tool clearly...

Do I need to delete the Sd libs inside the installation of Teensyduino or Arduino ? Or do I need to use the latest beta of Teensyduino? Hmm --> will try that now.

hi Walter, had some time today to try the new version of microSoundRecorder. However, I do not seem to be able to compile it. Arduino 1.8.13 TD 1.53 no other SD library installed except for the newest...

I think he refers to this: https://www.pjrc.com/teensy/external_power.html A simple "battery" in this case would mean 1.5V (nominal), in 4-series, and adapter would then refer to e.g. buck-converter to drop the 6V...

Have pasted some snips from GPT code Im working on, might help. Some of it inspired by manitou48 here. You can change the line #define GPT_CLOCK_SOURCE 3 to vary the source for the GPT timers. Note that 3 is for...

Why did you change the zero gain code? Maybe it's where your problem is?

It appears that the op of that other thread is gone.

The pins on the opposite side of the board use a pin out similar to PC motherboard AC97 https://www.pjrc.com/store/teensy3_audio.html

Any chip on those pins to memory map with processor supported addressing on QSPI needs setup and interface as done in the linked sources for supported chips. The linked chip doesn't seem to support QSPI - so...

Actually it is quite, say, teensy :-) Thought of encoding to jpeg before sending to reduce the data to transfer. Maybe something like this: https://github.com/noritsuna/JPEGEncoder4Cortex-M. Of course, this...

Thanks PP. I understand now. Probably beyond me at the moment to try changing those internal registers but at least i can check which pin is set to which ADC for the moment. Cheers NM

I looked through the library, paul is a wild genius to figure all of this out. I would do it in hardware if it were me :D SO the code doesn't use digitalWrite because that's so slow there's no way it would even come...

So the pins for those slots are accessible and I can put any SPI like SOIC-8/SOP-8 chip there as long as I manage them manually? I was specifically planning to use a CY15E064Q-SXET in the second slot. It's a 64K...

So the biggest thing is you need a stable and accurate 3.3v supply. Byfar the easiest way to do this is use the one that Paul included on the board :D! Attach ground to negative, and the battery-positive to the...

So the microcontroller on that one can by the looks of it be configured such that most or any of the analog pins connect to whichever ADC you would like. Well over my head to manually set the internal registers to do so...

Yes, it uses the same processor and responds the same way.

Does this also work for teensy 4.1?

IIRC > @mjs513 wrote support for MRAM - though smaller - they work. That came about as part of the LittleFS IIRC and the support for that is in current TD 1.54 Beta. That LittleFS thread and the PaulStoffregen...

Hi, Paul Both boards have the same results - no 3V power, but 5V power at 5.08V. 8-Dale

I'm a bit confused, trying to parse this Neither board has 3V power? Or one does and the other does not?

Teensy 4.0 #1: It looks like I do not have 3V power. I have 5.08V. Teensy 4.0 #2: I do not have 3V power. I have 5.08V. I do not understand this at all. One of my boards was working for awhile, but the other never...

@luni Nice toy. Must be nice to have room for things like that :) Guess I will have to see about about sending a continuous stream to the PC :)

If it's completely unresponsive, let's first look at whether it's getting power.... Try using a DC voltmeter to measure VIN-GND (should be about 5V) and 3.3V-GND (should be 3.3V).

I tested the Teensy MM beta board in my DIY stepper motor carrier. This carrier is part of a solder paste dispenser project I'm working on since a couple of weeks. The T4 MM board finally motivated me to work on the...

There is no activity at all on the Teensy 4.0. No flashing or blinking red LED at all. Both just seem to be "dead" now. Everything looks good to me. No solder splashes, which would be easy to see. No solder bridges,...

Done, Glad I asked :) - last thing needed is more trouble ...

Yup. While most programmers would balk at code-dependent timing, if you use consistent overclock and compiler settings, linear strings of "nops" or loops with them are surprisingly useful. Always use FASTRUN to keep...

My main complaint right now is that the first prototype worked so well that it was put into use 2 days after I built it. So now I'm waiting on a digikey order so I can make another one and continue firmware development....

They're just plain old red LEDs in a 25x11 matrix. I use 2x 595s + mosfets as row drivers, and 2x CAT4016 current sinks to drive the columns. 1.0 / (5us * 255 brightness levels * 11 rows) = 71.3 Hz 71 Hz looks...

No - you are going to be in trouble if you use that one. Down the version I am using from here: https://github.com/ArduCAM/Arduino/tree/master/ArduCAM/examples/host_app/ArduCAM_Host_V2.0_Windows

The jack on the audio shield is output only, meant for headphones. To get a signal into the audio shield, you need to connect it here: Probably best to start with this 31 page tutorial. ...

Yes, several times. But as I was saying, I am not allowed to utilize the Teensy audio design tool for this project as it is for a college class. It says on the Audio shield page (on PJRC) that audio data is transmitted...

Just a quick scan of the code, until this showed something like this could be going off the end of an array where for ( j=0 to limit (n_freq) ) - on the last valid entry it is referring and writing to j+1: ...

Hi Paul, thanks for the hint, I was accessing element of an array inadvertly. Thank you for pointing out that this was common behavior, consider it solved!

Supposing this thread was found - but to be sure : forum.pjrc.com/threads/59319-Blynk-Support-for-Teensy-4-0 A post there might be seen by the maintainer if nothing else shows up. Not sure that thread has useful...

Sorry I found it now.. https://forum.pjrc.com/threads/66162-Using-multiple-USB-Types?highlight=usb+keyboard

Usually these sorts of mysterious problems are due to a buffer overflow. Adding even an unused variable tends to cause the overwriting to corrupt something else (which is less critical and doesn't make your program...

Thanks Mark, this allowed me to do some more tests, and... here are my findings: 1 - The ladder filter will induce some significant unwanted fixed frequency noise when (at least) one mixer is used in the sketch. The...

@mjs513 - does this link the ArduCam viewer : arducam.com/arducam-host-application-demonstration/ ... there is a zip onder 'here' : precompiled execute program can be download from here The test of a single uncanny...

@geekguy: Did the 15 second Restore proceed as > Button held 15 seconds to RED LED flash, Button release, some ~30 seconds of RED LED on, then T_4.0 return to 1 second Blink? > It won't have active USB at that point -...

Thanks Gary. SO yeah the POE incoming is 48 Volts however there's a DC Buck converter in my design that down converts it to 5V and is capable of drawing up to 3A. However I'm not drawing anything close to that. ...

Sorry, I don't have any real experience with a Mac. Since it is just a matter of substituting files in the Teensy folders, can you find the appropriate place on the Mac?

I just did this with one Teensy 4.0, but it still does not respond to attempts to program it. I have good USB data cables. I have not soldered to anything on the underside of either of my Teensy 4.0 boards. 8-Dale

No need to plug anything in, just configure the i2s1 output object (it will flap the I2S pins (MCLK1/BCLK1/LRCLK1/OUT1A) so you can't use them for anything else) You just need something that's clocked to drive the...

The sensor has a frequency response extending to over 22 kHz With a sample rate of 20 kHz you will need a "brick wall" 10 kHz low pass filter between the sensor and the ADC. Otherwise the data could be hopelessly...

Actually not really. FlexIO is so intertwined with the DMA stuff that 98% of its still being called for flexIO dma. :) which I chose to leave in. That caused me some problems when doing that :) Oh - just tried you...

Boy just #ifdef out all my stuff :D ;) Actually at some point if we really want to kitchen sink it, we should also for the T4.1 add the CSI mode stuff.

@mjs513 - I hacked up the example, mainly just the callback: void frame_callback() { //Serial.printf("FCB: %d %d\n", tft.frameCount(), tft.subFrameCount()); uint32_t frameCount = tft.frameCount(); bool...

Thank you! Just to be sure that I understand it correctly: -> If I plug any I2S-device to the T4, the audio libary will probaply work. (audio shield for example) -> And if I wait for the next software release, it...

AudioAnalyzePeak can do this I think.

@Bastiaan: I would suggest a major simplification. Note that I am not somewhere where I can actually test this on a Teensy, so this is all "conceptual" off the top of my head. Normally, I don't think it is really...

You've seen and absorbed these resources? https://www.pjrc.com/teensy/td_libs_Audio.html https://www.pjrc.com/teensy/gui/ https://www.pjrc.com/store/teensy3_audio.html

Got it. I wouldn't hold it up either. It does seem to be working. @Paul - @defragster I did just make a few changes in prep for final release. I add 3 defines (at least for now) in the HM01B01 file: // Camera...

Yes, pull request #390 is already in the system to fix this in the next release. The latest Audio lib repo already has this - the warnings are benign.

For the most part I think it is an issue with the way the test is doing stuff... So I may not hold up stuff on this. I am going to change the test callback to only do stuff for shutting down only at start of frame...

I just tried it with your change and saw the same thing but only if I changed the default size "Arial_10_Bold", otherwise it hung after only 1 cycle.

The ethernet kit that PJRC sells for the 4.1 has a ribbon cable that is at least 4 inches, so I doubt 2 inches of PCB trace would be considered long. As Phil said: match the lengths.

If CircuitPython can do it, so should the C SDK, right?

Lights are always a fun way to waste power (LEDs can be had that consume as much as 30ma, and there are light bars, too). Of course you could also use a power resistor. Given the power over ethernet is usually a...

So now I am in the very big doc of the IMXRT1060 and the source code of TimerTool. It's not very easy to find how to have a 150MHz or 100MHz with the CCM and use it for the GPT1 timer. I have search examples on...

If a capacitor needs to be added, what capacitance should it have? I have this https://grobotronics.com/dc-dc-converter-step-down-5v-1a.html Μaybe as mentioned the problem may be in DC to DC step down to 5V! I will...

Sounds good, I am assuming that the two others I ordered from Sparkfun, scheduled to arrive Sat at our PMB, which usually means Monday... Will be Mono as well. As for the hang, I am pretty sure it is timing...

Not a problem, just wanted to let you know. Took a while to find a display that you didn't test with - saw you tested with the 240x240 and the 320x240. One curious thing about the HM01B0. Was reading on the their...

LC goes in the 3 branch

I shall go forth and read, honestly had not even heard of that file before, thank you. Stupid question, does the LC count as 3 or 4? Edit: I think the answer is 3, but I'll leave the question in case I'm wrong...

You need to edit usb_desc.h. See the comments in that file for details. Pay attention to the folder name, as 2 copies exist for Teensy 3 vs 4.

Morning @mjs513.... Yep I need to look more at the shutdown... It did not go all of the way through... Which is why I added all of those outputs, back in the ILI coding of it. Probably something subtle. Will play...

Very difficult to say what's going wrong here, but it does remind me of painful problems as couple people experienced with Traco DC-DC step down converters they bought from Adafruit. As I recall, the Traco datasheet...

Just tested your latest changes on a T4.1 with a Adafruit 128x128 display. Starts up fine and display looks good however after I toggle updates off screen stops but I can't seem to toggle it back on. Seems to hang the...

No one has any ideas? I had really hoped it was just something simple I was missing.

I'm a bit late to the party here but I've been messing around on other platforms with Cortex-M7 chips while attempting to create a quick PRBS generator using assembly. I've found that the "nop" instruction seems to...

With Teensy 4.0 / 4.1 you could do this using SPI1 on pins 26 & 27. But with Teensy 4.0 those pins are on the bottom side pads which aren't as convenient as the outside edge pins. The SPI hardware registers are very...

Good day. There are thousands of such implementations. It is important to know the power requirements of consumers and remember that it is not recommended to take more than 0.5 A from the port. Maximum ripple, Average...

hi silverlock, had some other stuff to do. id expect that it would countdown from 3,2,1,0. but then it goes to 6:28:15. unsigned long Days = 0; unsigned long Hours = 0; unsigned long Min = 0;...

Morning all @KurtE - Just downloaded your updates from last night and yep resolved the compile issue. Did you sort out your compile issue? @ecurtz Your guess was pretty good. With a couple of tweaks it worked...

Thanks a lot, it makes sense.

It was the hex file itself, not a 4.0/4.1 incompatibility? Interesting. The soft reboot code is only implemented in the Linux portion of the code. There's just a stub for OSX and Windows.