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  1. Thread: Jaws-fx

    by KrisKasprzak
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    Very impressive. I love all the images showing...

    Very impressive. I love all the images showing off your work.
  2. Does anyone have Wave2Sketch.exe? the link is 404...

    Does anyone have Wave2Sketch.exe? the link is 404 on the PJRC site.

    I'm in the mood to experiment with storing sound definition in a .h file and playing through my Teensy 3.2 and audio board.
    ...
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    UhClem, thanks for bringing this to my attention....

    UhClem, thanks for bringing this to my attention. It looks like the control input voltage min is 2.4 and suitable for a direct connection to a Teensy. I didn't see a range for control frequency but...
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    From your schematic I'm not sure the 10K will...

    From your schematic I'm not sure the 10K will pull the main MOSFET low fast enough to get the MOSFET fully off.

    I would defiantly breadboard this up first. I've spend some time trying to get a...
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    Welcome home. I too had issues with...

    Welcome home.

    I too had issues with Arduino--ram was the killer. I moved to Teensy several years and and never looked back. Other things I find useful

    1. ability to set the pwm frequency
    2....
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    Are you using the 2.8" TFT that is shown on that...

    Are you using the 2.8" TFT that is shown on that page? If so, the connection is and SPI and the same for a Teensy 3.2 and 4.0.

    display Teensy
    Vcc to 3v3
    GND to GND
    CS to pin 10
    RESET to...
  7. Why are the caps needed? I would expect the...

    Why are the caps needed? I would expect the output go through a resistor and to the LED
  8. Replies
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    Maybe this will help... You can create a new...

    Maybe this will help...

    You can create a new ILI9341 font but replace a current character with the degree symbol, then display. This vid shows how to create your own fonts...
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    yea, good question.

    yea, good question.
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    Maybe your solderless breadboard is different...

    Maybe your solderless breadboard is different from mine, but your MOSFET is all on the same bus pins. Gate is shorted to drain and source. the RGB pins are each on a different buss.

    If your board...
  11. From what's posted on the JJRC website, the...

    From what's posted on the JJRC website, the Teensy 3.2 can run about 1.25 million interrupts per second.

    I think you have a few issues
    1) not sure why you are disabling the interrupt inside the...
  12. I'm not sure if this will help, but I was also...

    I'm not sure if this will help, but I was also looking to add extra memory to a Teensy. My goal was to mimic an SD card with an external memory chip to save data, then later dump the contents of the...
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    dang dude...Impressive work.

    dang dude...Impressive work.
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    The ILI9341_t3 library has a scroll feature ...

    The ILI9341_t3 library has a scroll feature

    void setScroll(uint16_t offset);

    I use it in a splash screen like this.

    Display.fillScreen(C_BLACK);
    Display.fillScreenVGradient(0x000E,...
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    Don't laugh, but I have that same display and I...

    Don't laugh, but I have that same display and I actually use the ILI9341_t3 driver. This driver is faster, more capable, has much better font support, etc. You should only have to reset the...
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    We maybe talking about different applications,...

    We maybe talking about different applications, for mine

    1. Teensy 3.2 measures data, sends wireless data to ESP32 (using EBYTE transceivers)
    2. ESP32 has and EBYTE and reads incoming data,...
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    I would (and I hate to say it) but and ESP32 will...

    I would (and I hate to say it) but and ESP32 will be the easiest to implement. I have a few applications, one is a home monitoring system that reads sensor data and serves a web page so I can view on...
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    I have used current sensors like this for 20 amp...

    I have used current sensors like this for 20 amp applications.

    https://www.tamuracorp.com/electronics/current_sensor/pdf/201910/L08PD15_e.pdf

    I use voltage dividers to measure 24 volts.
    ...
  19. For the record, I'm not a sales person for PJRC,...

    For the record, I'm not a sales person for PJRC, but I highly recommend dumping Arduino and moving to a Teensy (4.0 or so). Ignoring read speeds, If you want to add a display for displaying details...
  20. Bonjour! Very impressive.

    Bonjour!

    Very impressive.
  21. You shouldn’t need to do anything Different to...

    You shouldn’t need to do anything Different to get sliders to work on a second displaying. Just create a second display object and a second touch object, then pass your display object to the slider...
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    I would suggest posting photos and cable length....

    I would suggest posting photos and cable length. I'm sure this may help others.
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    That display is very similar to the ones I use....

    That display is very similar to the ones I use. Mine are 2.4" and 2.2" (mainly due to space requirements). I've not made any updates--the thing works and after a few years of fighting noise issues,...
  24. Thread: Goodbye

    by KrisKasprzak
    Replies
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    2,019

    My dearest FrankB, I know we’re total...

    My dearest FrankB,

    I know we’re total strangers, but I’ve had the pleasure of learning from you either on my posts or others. I understand your situation and I have similar feelings. Over the last...
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    I was doing nearly the same exact thing. My...

    I was doing nearly the same exact thing. My Teensy 3.2 was processing sensor data, talking to displays and getting data wirelessly, then sending data to and ESP8266 for web serving (as an access...
  26. Welcome to Teensy. I think you will find this...

    Welcome to Teensy. I think you will find this device much better than anything Arduino has and this forum is very helpful.

    PS. 435 + 448 + 162 WS2812B 5V and 6 5050 12V strips? I'm dying to see a...
  27. that really looks like the lib (or something) is...

    that really looks like the lib (or something) is flipping the height and width. Good question from the mighty KurtE...what lib are you using? I wonder if you reversed the height and width in the .h...
  28. I just saw this post--I rarely look at posts in...

    I just saw this post--I rarely look at posts in the technical support section.

    Big question is 1) do you need to just communicate wirelessly or 2) must you have some wifi capability (creating web...
  29. Are you using the SD card reader on the back of...

    Are you using the SD card reader on the back of the display? Is there anything connected to the SD SPI pins?

    My tests results

    Display Results
    2.8 #1 Works fine (Display & SD & touch)
    2.8...
  30. I'll test this setup tomorrow.

    I'll test this setup tomorrow.
  31. I'm not sure if what I'm trying to do will help,...

    I'm not sure if what I'm trying to do will help, but an update. One of my projects is helping a high school build a data logger for a race car. Sometimes the sd card skips a beat--I'm guessing from...
  32. OK, i tried and failed... I have a chip and...

    OK, i tried and failed... I have a chip and connected it to my Teensy 4.0 using SPI wiring and chip select =10.

    I'm using a chip: ESP-PSRAM64H, with this data sheet....
  33. If you have a really old version (or any...

    If you have a really old version (or any version). just click the icon in the upper left and select Move, then click and drag the dialog. You may have to mouse down for a second before moving.
  34. marcopolo303, I just came across this post :) ...

    marcopolo303, I just came across this post :)

    Hello, my fellow Greenpower mentor. I'm a Greenpower coach here in the US--maybe you have heard of Patriot Racing from Bob Jones High School. As you...
  35. Can a APS6404L be connected to Teensy 4.0 SPI and store data?

    All,

    Before I begin this experiment, is it even possible to use the APS6404L (or any other SRAM chip) as data storage device for a Teensy 3.2 or Teensy 4.0? I see it can be soldered to a 4.1, but...
  36. OK, got my SD cards working, seems these lines...

    OK, got my SD cards working, seems these lines are needed

    #define SPI_SPEED SD_SCK_MHZ(4)
    IsSD = sd.begin(CS, SPI_SPEED);


    ...maybe my cards are slow?
  37. I can imagine all of you have this working but...

    I can imagine all of you have this working but still a no go for me after updating everything.

    I am using a 16 GB SD card

    IDE
    Teensyduino: 1.54
    Arduino 1.8.15
    downloaded latest from Github...
  38. I just deleted all sdFat in my 1)...

    I just deleted all sdFat in my 1) Arduino\libraries and in my 2) Arduino\hardware\teensy\avr\libraries and installed this lib in both locations

    https://github.com/greiman/SdFat

    I'm on Win10 and...
  39. @Paul: you write "I used 1.54 with the latest...

    @Paul: you write "I used 1.54 with the latest core library changes from github."

    do I need to get the latest SdFat from gitHUb and overwrite my Teensyduino install?

    I'll give that a shot, but...
  40. It should print 1, but trying 2 Teensy 4.0, and 1...

    It should print 1, but trying 2 Teensy 4.0, and 1 Teensy 4.1 I get 0 meaning the SD card fails to begin when using SdFat.

    For my tests I'm now using just a Teensy and an SD card shield

    However...
  41. Teensy 4.0 fails to begin() with an SD card

    All,

    I have a board with a display and SD card and when using a Teensy 3.2 all works well (SPI display and the SD card). The SD card is on the display, but resistors replaced with 0 ohm and it...
  42. if you are getting "jumps" meaning 1 click on...

    if you are getting "jumps" meaning 1 click on your encoder produces several counts, it's most likely a bouncing issues. Meaning inside encoder the mechanical contacts literally bounce and cause extra...
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    This is probably as short as you can get it--one...

    This is probably as short as you can get it--one could probably hack some lines out, but without knowing the context, this is probably has short as you can get.


    You mention RISING / FALLING,...
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    I think you might still see a bit of a flickering...

    I think you might still see a bit of a flickering problem the key is to start the black line where the green line stopped.
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    I've seen sites that show how to calculate the...

    I've seen sites that show how to calculate the phase based on a data. Some methods are better than others. Then get your RTC working on the Teensy and add a battery back up connected to VBAT. Set the...
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    Filling the screen every pass is the issue. ...

    Filling the screen every pass is the issue.

    You should draw the line to the designated sensor value like you are doing, then in the next line draw a black line from the designated sensor value to...
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    very impressive. 1. how often do you store...

    very impressive.

    1. how often do you store readings? (every second for example)
    2. how many readings do you use for averaging (assuming you do averaging)?
  48. Thanks the issue was in the .cpp file. I...

    Thanks the issue was in the .cpp file.


    I actually use both touch drivers depending on my display. Some of my TFT's share the SPI nicely hence the XP-2046 is my first choice, other displays I...
  49. seems like a very custom form factor. What's the...

    seems like a very custom form factor. What's the application?
  50. I have a library and YouTube vid on how to use...

    I have a library and YouTube vid on how to use these--unfortunately my lib is for the Serial-based units and will not work with the SPI one like yours. Anyway, if you change to the Serial-based...
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