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check out Display.setTextColor(TextColor, BackColor);

Nevermind, LOL! I got it to work! Thank you again!!

THanks for the reply again, Kris! Unfortunately my simple example fails to work in the actual application. I am wanting a string of text to shade up from black to white on a black background. I ran your code and it...

I know ... talking to myself ;) Just pushed up a WIP version of the MTP send object code, that in addition of trying to allocate a full size buffer for the file. Once the whole file has been received over USB, I...

Yup, that's been the plan all along. :)

these displays are 65535 color depth (color565) meaning 16 bit color depth (5 bits for red, 6 for green, 5 for blue). The library has a method to covert true color to 565 This tested code should work byte i;...

Yes, very likely. Look for problems near pin 8. If stray solder got onto the pins of that little chip near pin 8, it would cause this sort of problem. And just to be clear, this problem almost certainly means the...

OK, I though you were referring to the stepper driver carrier board.

I just grabbed it from luni's octopart BoM: https://octopart.com/bom-tool/5AbwHvxe Does not include the connector, since that would be on the carrier board.

Anything that provides simple info logging would be cool. As noted your On_Restart T_4 display is an awesome extension for HardFaults. That's where I got bogged down - tying to add generic debug stuff to HardFault...

I have an Idea.. I could extend the Hardfaults for a kind of "user" exceptions. It would need a macro that prints the userdefined text together with the GCC macros __FILE__, __func__, __LINE__ It would work like...

#1 I think is along the same lines as was done in MTP in the storage class: uint32_t addFilesystem(FS &fs, const char *name) {return sd_addFilesystem(fs, name);} ........ uint32_t sd_addFilesystem(FS &fs,...

Ah, I thought they were 3.5mm. I looked at using 2.54mm but couldn't get even the smallest ferrule in the samples I got so moved up to 3.5mm. Even those are pretty tight with ferrules. I agree about pluggable...

That sounds like a good plan. Perhaps I can add the SPIFFS then, too.. in a few months. Actually, it should be possible to integrate USB drives, simple network file systems, etc. with it...

More mounting brackets are seen here: https://www.digikey.com/en/products/filter/mounting-brackets/574

Thanks for the reply. The pin is actually one pin further to the right (B8), but the photo kinda makes it seem like it is in the +3.3v out (which is not a port). Thanks for the heads up though.

I do have a plan (kinda 2 plans), but so far haven't written anything.... 1: For the wav file player and other file-based audio library stuff, I'm planning to add a useFilesystem(FS &filesys) function, which would...

Are you sure you need to feed 3V3 to the breakout board? From what I can tell from the photo is that you connect Teensy's 3V3 output to a V+ pin on the breakout board. Is the V+ on the breakout board also an output?...

Thanks Kurt, I'll have a look ... where are those fonts stored then ? .. I assume just in code space and they are send to the display via program code ... I think this way is 'much' slower then using the char generator....

I guess we need Windows-like drive-letters or devices..or canonical paths... ? Like "//littlefs/flash0/MyFantasticFile.txt" But, really, I don't know what the plan is. Edit: With "SD" as default - "Builtin" for...

luni, really nice work, love all the documentation. Just FYI, for anyone interested, I did some quick back of the envelope estimates and arrive at somewhere around $35 to $45 USD per board if these were to be...

I still haven't got to the bottom of this problem. I have connected up maybe 60 Teensy3.2 over the past years and never had this problem until recently. I have connected another 10 this week and found 2 to have this...

Hm i did not read about that, but I thought FS.h was a wrapper for all kinds of FS? I guess it just needs an info which FS is used. But I have _no_ knowlage about all this stuff. I wait for someone who writes a...

No, a GND connecton is needed in this case, too. Don't know how better LAs do it - maybe they have a USB Isolator builtin.

Here is the picture of the connections between my Teensy and the FPGA dev board I am using as a logic analyzer (it is an Alchitry AU) So I just put a wire between my FPGA and the Teensy and now it works...

Well I started playing with the wavFilePlayer code but run into a problem how to handle pointing the to constructor for each type of FLASH (QSPI, SPI, FRAM) in the play_sd_xxx files in the audio library. Right how SD...

Things like that seem like a good addition to take the mystery out of a Teensy that 'just stops' - it doesn't generally happen - but when such things do happen it is an opaque puzzle. And future more complex Teensy...

FYI, when using this font maker with the ili9341_t3n library, you MUST go into the "font".h file and change the #include <ILI9341_t3.h> and add in the "n" after the "3"....

Note: the Teensy boards will not show up as a USB Serial device, unless you program them to do so. What I typically do with a new teensy, is to load up a simple sketch like the example blink, Set the Device as to...

Hopefully someone one will be able to help you here. I personally have not tried any of the RA8875/76 custom font stuff, nor any of their ROM chips. What we have done when we were playing with supporting drivers...

The MCP6002 won't do audio, far too slow(*). Its an ultra low power opamp, so the bandwidth and slew-rate are woeful. Your virtual ground reference network, the two 47k resistors, lacks decoupling, so there'll be...

Hello, did somebody succesfully implemented / used the user-defined characters feature on the ER-TFTM101-1 ( 1024x600 dots 10.1 "color tft lcd display with RA8876 ) ? I'm struggling to get this working ... I'm using...

I just saw that - if no DMA channel is available, Teensy just hardfaults. If there was a intention to put the hardfault handling into the core, i'd try to add something like printing an errormessage for problems like...

When creating a custom font and placing it into my ili9341_t3n library folder with the other fonts used in this project, I get a slew of errors when I compile.. :-( <code> In file included from...

That 8 Ohm load on your output can't be making that opamp happy. If all you want to do is reduce the amplitude to drive a low level input then all you need are some resistors. But make sure that you don't have a...

Is this compatible with the ILI9341-T3N library?

Nevermind. I found it in your youtube page as a link on another thread over here on pjrc. :)

Hi Kris! Thanks for the reply, however, when I go to that website there are only 3 programs available and none of them appear to be something that would do this conversion. :-( Please advise. -Ash

First get the ttf font, maybe this site is what you are looking for? https://www.dafont.com/ethnocentric.font Then watch this vid on how to convert the font into an ILI9341 font https://youtu.be/YNUbvpTaaCY ...

Thanks a lot for your feedback. Yes, that was surprisingly simple Actually I have a few lying around but never used them. Will give them a try when I find some time. He, he, when I soldered them in I...

Ooops sorry, that was for T4. There is nothing on T3 that would blink after 15 sec. So, 1) Disconnect USB 2) Press and hold the button 3) WITH BUTTON PRESSED, connect USB. A new sketch schould upload now. Try...

:-) 1) Press the button 15 seconds - until a short blink 2) Release it. It should blink now and be the state where it was brand new. or connect 3.v3 volt to Pin 29.

I wanted to play with this a bit so I temporarily added this line of code into the main loop(): if(digitalReadFast(29) == LOW) SCB_AIRCR = 0x05FA0004; Now, even with removing that line of code I can no longer...

Nice work! Will be having a more detailed read when I get the time. Thank you for taking the time to write such a detailed run down etc. So useful when learning from others work. V grateful. Woody

Hallo again.. Voltage output on the LM317. Since the LM317 cannot regulate its output to 0 volts because of its internal Uref of 1.25V, With its voltage drop, the LED ensures that the output voltage begins to rise...

Nice job! Based on the thread, I think you soldered the micromod connector by hand, right? If you make any changes to the carrier board, a few suggestions. - Support Trinamic based Step Sticks. add the two extra...

Not from me, but it is under MIT, so feel free to ask SparkFun, and probably PJRC :-) (According to a comment from the SparkFun CEO on Youtube they already viewed the vid during a company meeting :-) ) If you need...

Any chances the MicroMod 3.2 will be available commercially sometime?

Here you are: https://github.com/luni64/USB-C---MicroB

hi try something like: // if pot_raw_value is an int holding the value of the pot 0-1023 // float pot_value = floor(pot_raw_value/102.3f)/10.0f;

Sorry.. Its IC6 LM317

@Frank B Now that I know LittleFS works with LC I started looking at wavPlayer sketch. Think a few files are going to have modified especially play_sd_wav.cpp

I still want to save processor power for future functions ;)

Ok figured out the problem and its not LittleFS. Problem is just running out of memory within the sketch. There are a few array of 2048 and while by itself is not bad, add that with the sketch size probably causing an...

I am very interested in these design files as I need high current for other components through the USB-C yet want to program the Teensy through usb-c D+, D-. thank you very much, Richard

Next step in my deep dive into the MicroMod stuff was to build a custom carrier board. The compact stepper board can be used with up to four stepper drivers with standard layout (e.g. DRV8825). 1xI2C, 1xSPI, 1xUART, 2x...

The boot loader does not support the 2nd USB port, but on the T4.1 there are pads on the bottom to access the 1st USB port's D+ and D- pins so that you can add your own connector. Though it's not immediately clear how...

Another data point. Just ran my bench sketch for read/write and that seemed to work except totalSize is returning 0! LittleFS Test...

You can hide a software-serial into the blink.. if fast enough it wouldn't be visible and look like "LED ON" but with a optical link you could see debug messages ;) Ok, just a dumb idea, ignore it.

Not nice :(. That was with SerialFlash not LittleFS. LittleFS seems to be having a problem with LC.

MOrning @KurtE A bit. Hate leaving things hanging so I had to finish off the BBM stuff (not much more I can do on that) and test the LC I just remembered. Going to do a few more tests just in case

It's not going to do anything so complex. And even if it did, the nature of most failures is that you can't attempt the next stage anyway. If communication with the IMXRT fails, there's no way to check whether the...

Nice :)

@mjs513 Sounds like you have been busy! What about Teensy 2? ;) (Just kidding)

Teensy LC Issue with LittleFS @Frank B asked about if we did any testing with Teensy LC (https://forum.pjrc.com/threads/64592-Teensyduino-1-54-Beta-5?p=266527&viewfull=1#post266527) so I hooked up a LC to the...

Danke :) Hab grade die ersten Beiträge überflogen. Also der Teensy 4.x kann ganz sicher eine sehr hohe zweistellige Anzahl von Stimmen :) Irgendwer schrieb mal er würde 15 samples aus externem Flash gleichzeitig...

@Frank My Teensy Synth blog in deutsch: https://www.sequencer.de/synthesizer/threads/avr-synthesizer-wave-1-de-generator.87599/page-22 :)

Or maybe a misbehaving ground loop. Is the LA connected to the same computer?

Yes it would be great if there was some tutorial or web page, that discuss DMA for the different Teensy boards. There have been several threads talking about DMA with GPIO on T4.x, that you can get a lot of information...

Oh man... why does everything have to be in English. Why are papers by Germans published exclusively in English, and then have to be translated back by other German readers... grrr :) We pay taxes... ;) I see it...

Is this a layout issue? Cables too long? Missing or misrouted ground return wire?

If you want to find out more, this is the paper that inspired me: https://holometer.fnal.gov/GH_FFT.pdf

..and you can remove the housing from these boxes and just use the board...

Why were these tweaks needed? Does it not work without? Do I have to take that into account somehow? I did not test EQ, surround and volume ramping (and at the moment I can see no reason why they should'nt work)

I'll start work on Teensy LC IS2-Input now.

The PCM1808 datasheet clearly shows the analog supply is 5V and digital 3.3V. If a module doesn't have a separate regulator on it then both voltages need to be brought into the module. Its always worth checking the...

Hallo.. AntiPop circuit without relay.. IC5 LM317 slowly increases the operating voltage for the audio amplifier. Audio file: First sound with anti pop and second without

I just cant believe this...for f.. sake

Very excited to test out the new chips!

Thanks very much, it's pretty clear! Paul

Not really. It just makes sure that the CPU resets as soon as possible. Otherwise it can happen some cycles later. If you want to be on the save side, add the "dsb". It has to do with very technical details, pipelines...

Hi Frank, from the Wiki: SCB_AIRCR = 0x05FA0004; asm volatile ("dsb"); Do I need the 2nd line as well? If so, what does it mean/do? Thanks, Paul