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  1. Thanks Frank. I had got windows to search the...

    Thanks Frank. I had got windows to search the teensy libraries but should have included the cores as well.
    It was a bit worrying that there were 10 "TODO"s in the code.
  2. Hi Frank, I am still trying to learn all the...

    Hi Frank,
    I am still trying to learn all the intricacies of c++. Looking at your code above I could not see where
    external_psram_size; was set to any value. Can you explain for me.
    Thanks.
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    I have been using these...

    I have been using these and I find them excellent.
    For your module you might find this useful.

    I have made some modification to your receive code as below.
    //#include <SoftwareSerial.h> <<-...
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    Yea I couldn't find out how people were...

    Yea I couldn't find out how people were encapsulating the code when I first started. Eventually found out how!!
    I have since found that if you hover over the buttons an explanation of it's use pops...
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    Do you think in future you could enclose your...

    Do you think in future you could enclose your code between [C ODE] tags. These are the ones produced by pressing the # button above.
    Doing so keeps the format of the code and makes it more readable,...
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    What are the two plots on the graph?

    What are the two plots on the graph?
  7. Thread: Measure mV

    by BriComp
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    Can you expand on that, perhaps with a diagram. I...

    Can you expand on that, perhaps with a diagram. I googled but got nothing like you explained.
  8. A little Task for you. Read in 16 values using...

    A little Task for you.
    Read in 16 values using DigitalReadFast(1..16) shifting as necessary to represent the bit in the word and OR with the variable to hold the 16bits.
    Time it over 1000 attempts...
  9. I don't believe that the I/O runs at 600MHz. Bye...

    I don't believe that the I/O runs at 600MHz.
    Bye the way the H in Hz should be uppercase.
    All units derived from a human name ie Hertz, Newton, Ampere, always have their first letter capitalised....
  10. See here...

    See here and subsequent threads pointed to in msg#7.
    EDIT: See this thread as well.
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    He has already run the I2C Scanner which has...

    He has already run the I2C Scanner which has found the device.
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    OK, so wiring would appear correct. That's good....

    OK, so wiring would appear correct. That's good.
    I just looked at a LiquidCrystal_I2C example, I don't know if it is a solution, but they had the line
    lcd.backlight(); after the lcd.init. It looks...
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    Ok, try this one below, I just compiled it ok for...

    Ok, try this one below, I just compiled it ok for a T4.1, so should be OK. It ought to be included with Teensyduino instead of the one that is there. @PaulStoffregen

    //...
  14. Perhaps you should be asking the question on an...

    Perhaps you should be asking the question on an ESP/espressif board.
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    Ok, then run the scanner with your 20X4 display...

    Ok, then run the scanner with your 20X4 display attached to the second i2c port.
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    The display seen in the photo is one supplied...

    The display seen in the photo is one supplied with the board. He wanted to add another 20X4 I2C display, which is what he was having problems with.
    At least that is how I see it.
    Here is a link to...
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    I'm sorry, I thought that you were asking for...

    I'm sorry, I thought that you were asking for help in getting a 20x4 LCD display working on (SDA1 and SCL1)?
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    It's not a place for a jumper but a location for...

    It's not a place for a jumper but a location for an I2C QWIIC connector.
    What I2C Address are you using?
    Are you sure that it is the correct address?
    You can use the code following to scan your...
  19. I think you just did. The threads stay visible...

    I think you just did. The threads stay visible for ALL TIME. Ooh that's long. Pauls philosophy is to leave all posts visible for posterity. They may be useful to others.
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    You do realise that the MPU-9259 went EOL by...

    You do realise that the MPU-9259 went EOL by 12/31/2018. Apparently it was replaced by the ICM-20948.
  21. It's easy to get the cursor in the wrong place...

    It's easy to get the cursor in the wrong place when pasting between the [CODE.../CODE]" identifiers. I find the easier way is to highlight the section of code, then press the CODE button. The code is...
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    Others use 1.2k to 4.7k for that resistor.

    Others use 1.2k to 4.7k for that resistor.
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    Found this:-Not sure if it helps. I wonder if the...

    Found this:-Not sure if it helps. I wonder if the 470R is a bit low.
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    Oh, of course. I was thinking normal serial but...

    Oh, of course. I was thinking normal serial but it isn't. Stupid Me!!
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    Sorry, Frank, I might be being a bit pernickety...

    Sorry, Frank, I might be being a bit pernickety but should not this line in SpeedTest.ino
    Serial.printf("%d Bytes in %d us = %0.2f Megabits per second\n", n * size, t, n * size * 8 / (double)t);be...
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    I agree wholeheartedly.

    I agree wholeheartedly.
  27. If you are able to find the QUOTE button above,...

    If you are able to find the QUOTE button above, why is it not possible for you to use the CODE button. Your code that you found becomes much more readable.
    See below:-

    // Audio Tutorial Kit...
  28. Here is a snippet of the Adafruit LV6180X code:...

    Here is a snippet of the Adafruit LV6180X code:
    /**************************************************************************/
    /*!
    @brief Initializes I2C interface, checks that VL6180X is found...
  29. It does do the necessary begin(&wire). I...

    It does do the necessary begin(&wire). I downloaded the code too ensure that before giving my recommendation.
  30. I think @gfvalvo said it before I got back. You...

    I think @gfvalvo said it before I got back.
    You also do not need the other Wire stuff in setup.

    /*
    Wire.setSCL(24); // SCL2 on third i2c bus on T4.1
    Wire.setSDA(25); // SDA2 on third i2c...
  31. Try vl.begin(&Wire2);

    Try
    vl.begin(&Wire2);
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    Oh, OK. I tried googling it but could not find...

    Oh, OK.
    I tried googling it but could not find anything relevant.
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    What's an MRE?

    What's an MRE?
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    You can find the files here...

    You can find the files here.
  35. If you can't find these...

    If you can't find these why not use use these with these.
    They can even be made from a much longer strip for ease of supply.
    If making them from a longer strip, don't forget to allow for scrapping...
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    LiquicCrystal_I2C is hard coded to use Wire. You...

    LiquicCrystal_I2C is hard coded to use Wire. You will have to change LiquidCrystal_I2C to use Wire1. There is on entry to change in the .h and about 6 in the .cpp.
  37. Ask VM for an answer to your problem.

    Ask VM for an answer to your problem.
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    You have not shown all your code, certainly not...

    You have not shown all your code, certainly not code that can be compiled to demonstrate the problem.
  39. What value cap and resistor did you use? The info...

    What value cap and resistor did you use? The info could be useful to others.
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    Sorry never worked with audio.

    Sorry never worked with audio.
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    If you really want people to help you with your...

    If you really want people to help you with your code then present it properly - enclose it within
    tags using the # button below.
    See how much easier it is to read when done properly....
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    I edited the post, second one has price - approx...

    I edited the post, second one has price - approx $69.
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    Here is one...

    Here is one and another one. Looks like 4:3.
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    Your code is much more readable if you enclose it...

    Your code is much more readable if you enclose it with the CODE tags using the # button above. It's not space science but makes reading and helping so much easier. See below.

    void band(float n,...
  45. This (https://en.wikipedia.org/wiki/LwIP) is...

    This is worth a read.
    Seems that IwIP was developed for use in embedded systems (sounds familiar).
    @shawn how does IwIP compare with uIP?
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    Just gave it a try, that works. Teensyduino 1.54...

    Just gave it a try, that works.
    Teensyduino 1.54
  47. He might not be able to. but should try to prove...

    He might not be able to. but should try to prove to his supervisor that it is a good idea to swap to teensy.
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    OK, renaming SDfat in Arduino Libraries to SDfatz...

    OK, renaming SDfat in Arduino Libraries to SDfatz sorts the problem, but should you have to do that every time there is a new Arduino release?
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    It did NOT do that until I installed 1.55b3. Are...

    It did NOT do that until I installed 1.55b3.
    Are you saying that if you want to use the Teensy SD library that you have to delete the Arduino SDfat library.
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    Hmmm. I uninstalled Arduino and did a fresh...

    Hmmm. I uninstalled Arduino and did a fresh install of Arduino 1.8.16 and 1.55-b3 and had all sorts of SD errors.
    Ok just had a look at the compiler report and the compiler picks up the wrong SD...
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