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Type: Posts; User: KrisKasprzak

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  1. Replies
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    This code is from my printscreen library for and...

    This code is from my printscreen library for and ILI9341--and relies on a writeRect. If your lib has that call, this code will probably work. I've not tested it to work on your display but I use it...
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    Arduino 2.0. Hmmmmmmm

    All,

    I'm having a hard time navigating the library locations for the new Arduino 2.0 IDE, and where to put stuff. I have custom libraries for Teensy and some for Arduinos and I need to modify some...
  3. @OP did you ever get this sorted? I have...

    @OP did you ever get this sorted?

    I have recently moved a datalogging system from SD cards to an SPI flash chip, and my write times for the chip using LittleFS for Open/save/close for around 70...
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    thanks! I forgot to dereference

    thanks! I forgot to dereference
  5. Replies
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    stuck passing pointers to a method

    I'm writing a library and I want the library to "always know" the value of a variable. I had this working but forgot the secret sauce.

    I'd like to pass a variable to a library via some method,...
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    Usage and how to create your own custom fonts. ...

    Usage and how to create your own custom fonts.

    https://youtu.be/YNUbvpTaaCY
  7. Yeah I hear ya, thatís actually why I wrote a new...

    Yeah I hear ya, thatís actually why I wrote a new button library. You can have two buttons on top of one another and you just hide one and it will not be recognized. I also have enable disable states...
  8. What I typically do is upon a touch, I enter a...

    What I typically do is upon a touch, I enter a while touched loop. Below are excerpts and my own button lib. If you are using adafruit buttons, this will not work, but at least you can follow the...
  9. This is odd. WP seems to have not effect on...

    This is odd. WP seems to have not effect on protecting data. I'll keep experimenting.

    Note: These tests are with a Teensy LC and delay(150) after setting digitalWrites to the WP and HOLD pins

    ...
  10. a quick test, I'm seeing the same results, HOLD...

    a quick test, I'm seeing the same results, HOLD must be high to initialize.

    Case 1
    WP 0
    Hold 0
    Error starting SPI FLASH

    Case 2
    WP 0
    Hold 1
  11. mjs513 I only have the Microchip SST25PF040C...

    mjs513 I only have the Microchip SST25PF040C device and it works as expected. I can't test the Winbond device.

    Also for operation you may consider adding a note on how
    1. WP must be low
    2. HOLD...
  12. Seriously mjs513 and Paul, thanks a million. I...

    Seriously mjs513 and Paul, thanks a million. I wish I could pay back as much as I receive :)

    My goals are to have an chip on our race cars data logging system that does all the recording, then...
  13. BINGO! You guys are super geniuses. I did...

    BINGO!

    You guys are super geniuses.

    I did the following

    1. added the line
    {{0x62, 0x06, 0x13}, 24, 256, 4096, 0x20, 524288, 5000, 300000, "SST25PF040C"},
    2. tied WP to low
    3. Tied HOLD...
  14. mjs513, thanks for responding. I have tried a...

    mjs513, thanks for responding.

    I have tried a second chip, a Winbond W25Q80DV/DL, which I thought was supported, but I don't see it in the list.
    ...
  15. Can't get this to work: LittleFS + Teensy 4.0 + 25F040C

    All,

    I'm trying to get LittleFS working with a Teensy 4.0 and a 25F040 with no luck. I'm using Arduino IDE 1.8.13 and Teensyduino 1.57

    My chip is:...
  16. I'd have to agree with Rezo. I've fought with...

    I'd have to agree with Rezo. I've fought with these displays trying to get them to work with no success. I've had great luck with these and Teensy 3.2 and 4.0, Great library support as well
    ...
  17. I'm not sure this will help, but if you are...

    I'm not sure this will help, but if you are trying to update text on a screen and do not want the text to flicker, have a look at this lib. The vid show this FlickerFreePrint in action. Basically...
  18. Need help passing a font into a library

    All,

    I'm porting my menu code over to a ST7735 using the Adafruit_ST7735 library and small displays and will be for use on Teensy LC and Arduino NANO.

    My Library and usage work fine on a Teeny...
  19. It does not plot real-time, i plots when you send...

    It does not plot real-time, i plots when you send data, so you can plot static data from a file for example. However it's not log, so I guess the lib can't help.
  20. Like this? ...

    Like this?

    https://studio.youtube.com/video/vyvtpjQgRKQ/edit

    However its cartesian only.
  21. Replies
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    I print my own PCB boards (either garage using...

    I print my own PCB boards (either garage using bruit force layout or professional boards). I use EasyEDA for the professional type as I've found the library support is excellent. Shipping is usually...
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    What is the servo doing that is wrong? I see you...

    What is the servo doing that is wrong? I see you are going from 0 to 180 (180 steps x 0.015 = 2.7 seconds, assuming the servo can keep up with that)

    If your servo is not working or running too...
  23. I use both, the xxx30 is a high power (1W unit /...

    I use both, the xxx30 is a high power (1W unit / 30 db) device. It has crazy good range and mine works even with poor line of sight. It will consume some 800 ma when transmitting, the xxx20 is a 100...
  24. I would get a set of projects in mind, starting...

    I would get a set of projects in mind, starting small. YouTube is also a great source.
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    ILI9341 display for the Teensy LC

    I bought a few Teensy LC's for lightwork (and to avoid NANO's) but the ILI_9341_t3 driver will not work with an LC. Adafruut_ILI9341 will but is slow. Anyone know if the _t3 will get updated? Or if...
  26. It's hard to say how much of a 1:1 it will be. I...

    It's hard to say how much of a 1:1 it will be. I have a project built on the 3.2 had every pin is used for sensors, display, SD, etc. I replaced the 3.2 with a 4.0 and only had to make a few code...
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    WOW, great project, I'd love to see the show...

    WOW, great project, I'd love to see the show live.

    Post this in the blog submission for consideration to be featured on the PJRC homepage & blog.
  28. I don't think that touch lib works with a 4.0. I...

    I don't think that touch lib works with a 4.0. I could never get it working. Is you display's touch SPI based (had for me to guess with the pins stated above)? If it is SPI based, this lib is very...
  29. Not sure what buzzer you are referring to but...

    Not sure what buzzer you are referring to but these are what I've used.

    https://www.amazon.com/gp/product/B01GJLE5BS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

    Just send a pwm to them of...
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    Yep, I found a typo in the lib where I had...

    Yep, I found a typo in the lib where I had SetItemValue and SetAllColors but it should have been setxxxx. I have fixed the examples, but as mentioned just change the ino and change Setxxxx to setxxxx...
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    excellent work. when i get a chance i'm going to...

    excellent work. when i get a chance i'm going to buy one of these displays and give it a go.

    Thanks for all your hard work.
  32. Replies
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    Can you post a link the the displays, and maybe a...

    Can you post a link the the displays, and maybe a few screenshots? I've used maybe 30 ILI9341 (2.4 and 2.8) displays and never had an issue. All my projects involve drawing graphics and fonts.
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    you will probably fined info on #define and char...

    you will probably fined info on #define and char in some C programming guide.

    #define is similar to a search and replace. any keyword potPin1 will be replaced with A10 at compile time.

    I...
  34. Yep, you are writing to the serial monitor on...

    Yep, you are writing to the serial monitor on every pass inside the loop. Meaning you are dumping tons of stuff to frequently. I'm guessing the buffer is getting overloaded and crashing the IDE.
    ...
  35. Replies
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    I just wired this up and I think this issue is...

    I just wired this up and I think this issue is the way your code is written, you will only be looking at the state of the last button (23) after the for loop

    the line
    for (thisBtn = 0; thisBtn <...
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    If your problem is that you may "miss" detecting...

    If your problem is that you may "miss" detecting a button press because the user un-pressed before the other things were done, you may need to incorporate an interrupt. Currently you are using a...
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    Thanks for the writeup, I'd love to see this in...

    Thanks for the writeup, I'd love to see this in action with a short vid.
  38. In the mean time, can you perform an operation...

    In the mean time, can you perform an operation like analogRead and see if it will display anything? Finger pressing the analog pin, connecting the analog pin to GND or 3v3, type test. Also test...
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    Well done and very inspirational. I'll have to...

    Well done and very inspirational. I'll have to admit, while I was watching I was thinking of how you could commercialize this. I think you are on to something.
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    @spook gets all the credit for this excellent...

    @spook gets all the credit for this excellent tool. I merely posted a vid on usage.
  41. Dang dude, this is very cool. When I get some...

    Dang dude, this is very cool. When I get some time, i'll take a closer look.
  42. I think I get what you are asking. I always...

    I think I get what you are asking.

    I always use buck converters to drop some DC source (anywhere from 9v to 24v) to 3V3 and feed that regulated supply in to the 3V3 pin on the Teensy. That same...
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    @BriComp very promising. I found the relay part...

    @BriComp very promising. I found the relay part no. and amazon has the for a few bucks each. I'm making a PC board so they will plug right in.

    Thanks!
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    Teensy to control 120 VAC light bulb

    All,

    I'm building a light bulb controller and need a Teensy to turn it on an off, the bulb is a good old fashioned 120 VAC 100W incandescent bulb. No fancy switching needed, just on for like 5...
  45. Interesting, I'm reordering some more buffers and...

    Interesting, I'm reordering some more buffers and will give this a second try.
  46. Thanks, interesting wiring of MISO on the...

    Thanks, interesting wiring of MISO on the display. I see you have the displays MISO on the buffer output. I would expect the output of the display (miso) to be the input to the buffer or am I missing...
  47. Maybe I'm missing something, but sounds like you...

    Maybe I'm missing something, but sounds like you are simply try to reduce fan RPM by means of lowering the voltage? Can you not use and adjustable buck converter, or an LM317?
  48. Nice project. I looked at your website. Since you...

    Nice project. I looked at your website. Since you are submitting this for a blog, maybe rethink your "sources" in the Overview section?
  49. Replies
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    is "blank" a white screen or black? What is RESET...

    is "blank" a white screen or black? What is RESET on the display connected to?
  50. @macardoso, welcome home. You will find this...

    @macardoso, welcome home. You will find this forum extremely professional with some of the best minds in this field. People are willing to help and with a smile.
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