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    Did you see my post on the wiring and try it in...

    Did you see my post on the wiring and try it in that configuration. Post #10
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    Think you have Rx and Tx wired in correctly. ...

    Think you have Rx and Tx wired in correctly.


    Green wire (Tx) -> pin 0 (Rx) on T3.6
    While wire (Rx) -> pin 1 (Tx) on T3.6
    Red (5v) -> Vin on T3.6
    GND -> GND on T3.6 (pin right before pin 0). ...
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    Well you didn't mention what sonar sensor you are...

    Well you didn't mention what sonar sensor you are using so going to assume something like a HC-SR04. If that is the case you might want to use the NewPing library a shot,...
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    Did you attach rx-tx and tx to rx? or did you...

    Did you attach rx-tx and tx to rx? or did you match rx-rx and tx-tx?
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    When you said you tried to use pins 0 and 1, were...

    When you said you tried to use pins 0 and 1, were you still trying to use SoftwareSerial? Also not sure software serial has been updated to work with T4.0 yet. However with that said you would...
  6. Paul - more important to stay safe and keep your...

    Paul - more important to stay safe and keep your sanity at this point. Know you want to get T.41 out but you all are more important!
  7. Morning @KurtE Got curious so here is a link to...

    Morning @KurtE
    Got curious so here is a link to their interactive map for the US: https://healthweather.us/. Interesting when you look at the details for a area and their explaination. I will let...
  8. RE: Temperature tracking Just read through this...

    RE: Temperature tracking
    Just read through this article,...
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    I guess first thing I would say is to make check...

    I guess first thing I would say is to make check your grounds and make sure they are all connected to common ground. Did I say this right you guys, make sure you have no shorts and make sure you are...
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    Maybe if you provided some additional info on...

    Maybe if you provided some additional info on what you are running and what you have connected someone might have some ideas.
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    If you look in tempmon.c you will see the...

    If you look in tempmon.c you will see the temperatures set for panic and high temp:

    static uint32_t highAlarmTemp = 85U;
    static uint32_t panicAlarmTemp = 90U;

    There is a PR in to change...
  12. Out of curiosity I found one of these watches...

    Out of curiosity I found one of these watches that records Heart rate ECG blood oxygen,...
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    Cool. I picked up a ICM-20948 as well but...

    Cool. I picked up a ICM-20948 as well but haven't really had much time to play with it or the BNO080 except to make sure they worked with the T4. One of these will get back to it.
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    Hi Don Long time. Yeah the BNO080 is kind of a...

    Hi Don
    Long time. Yeah the BNO080 is kind of a neat little chip. But it was a pain to get working.

    Haven't really played with it much so can't really help you much but as long as the time...
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    This is going to sound funny but where are you...

    This is going to sound funny but where are you defining the bitmaps for the buttons? Looks like the bitmap names are in your scr array but don't see how it gets there?
  16. @defragster - you post was a bit prophetic, about...

    @defragster - you post was a bit prophetic, about 20 minutes ago Trump held a news conference and announced:
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    Morning Unless I have an old version of the...

    Morning
    Unless I have an old version of the adafruit RA8875 library I didn't see a drawBitmap function in their library. I did find a similar function to what I referenced. If you look at the...
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    Agreed. You can use the watchdog timer to poll...

    Agreed. You can use the watchdog timer to poll the temperature and if it hits a certain temp you can use the callback to execute what you want the T4 to do. I did test something like this and it...
  19. Hi all Just had a thought - yes I know its rare....

    Hi all
    Just had a thought - yes I know its rare.

    While I am an audiophile but what about using a Teensy as an electronic stethoscope or something of that sort. Did a web search and there are a...
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    As you said there is no direct function call for...

    As you said there is no direct function call for tft.drawBitmap however, if you look at the SDfatTest example in the Teensy3 folder it will show you how to read a bmp from a SDCard and display it. ...
  21. Morning all Just finished reading the article...

    Morning all
    Just finished reading the article poste by @defragster and followed a couple of the links. One of them is from the Virology Journal pusblished by Springer, Chloroquine is a potent...
  22. On of the problems with charting the number of...

    On of the problems with charting the number of people getting COVID-19 I think is that testing at least in the US is just ramping up, we don't really know as a baseline how many people already had it...
  23. Sorry - put it in a box and nothing further was...

    Sorry - put it in a box and nothing further was done. You might do a search on video on the forum - there may be other solutions.
  24. Agree whole heartedly. 2 things I don't discuss...

    Agree whole heartedly. 2 things I don't discuss - religion and politics - except on very rare occurrences.

    Starship Earth is a very apt name. Maybe the world needs to adopt the philosophy more...
  25. @KurtE and @defragster Finally catching up to...

    @KurtE and @defragster
    Finally catching up to you guys now that all my other distractions seem to be coming to a finish. So I tried the sketches from the PR using the current usb.c and usb_rawhid.c...
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    That probably wouldn't be such a bad idea. I...

    That probably wouldn't be such a bad idea. I agree.
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    DMP is an option, there is a DMP lib out there...

    DMP is an option, there is a DMP lib out there that does work with the 9250. MPU6050 is good as well. I have used madgwick and Mahoney without the magnetometer and got good results for roll and...
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    Why doesn't that surprise me. :) Anyway Lastest...

    Why doesn't that surprise me. :) Anyway Lastest from at least NY pretty much they are shutting everything down. Just heard City schools are going to be closed until further notice. Looks like bars...
  29. Yeah. I see it as well before tft.begin and I...

    Yeah. I see it as well before tft.begin and I set the background color.
  30. Try hooking up and using RST. I usually set it...

    Try hooking up and using RST. I usually set it up for pin 8.
  31. Ok, here is where I am getting confused then. ...

    Ok, here is where I am getting confused then. In your first post you stated that with nothing connected to Teensy "When I run this on my Teensy 4.0 with nothing connected, I get the expected...
  32. Don't have a lot of experience with these devices...

    Don't have a lot of experience with these devices but just a couple things to look at.
    1. Assuming you have different CS pins for the DAC and the ADC.
    2. In the case of the DAC suggest that you...
  33. I'm not an SPI expert here but you never said...

    I'm not an SPI expert here but you never said what device you have hooked into the T4 SPI lines. You mention you plug the T4 into your PCB but we don't know what your PCB or what you have hooked up,...
  34. Sorry just saw the post. C2 is a 0.1 ceramic...

    Sorry just saw the post.

    C2 is a 0.1 ceramic capacity. Picked up from amazon.com.
  35. Thread: Teensy WIKI

    by mjs513
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    Your English is just fine Frank

    Your English is just fine Frank
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    Probably not since its still getting hot. Did...

    Probably not since its still getting hot. Did you measure voltages on the 5v pin? or the 3.3v pin.
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    "Wiggling Pins" - sometimes mean different things...

    "Wiggling Pins" - sometimes mean different things to different people. That's why I asked.
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    OK - since maybe you have nothing to loose. One...

    OK - since maybe you have nothing to loose. One of the things I did was put 5v directly on the VIN pin and GND to gnd between the teensy and power supply. Tried a 15 sec reset. Sometimes it worked...
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    Ok had to make sure.

    Ok had to make sure.
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    I had one board that I thought I had fried and it...

    I had one board that I thought I had fried and it started working again the next day.
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    @Epartsman What concerns me is that the board...

    @Epartsman

    What concerns me is that the board was working when you originally hooked it up. I have about 6 of the t4's and I managed to fry one myself by putting 5v into one of the pins.

    Did...
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    Exactly. Sounds like the i2c pins saw 5v. Also...

    Exactly. Sounds like the i2c pins saw 5v. Also not sure the reset process was followed.
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    Just a couple quick things 1. did you hold the...

    Just a couple quick things
    1. did you hold the button down for 15 sec while powered and if so did you see the red light come on? If you did, did you release the button at that point so the chip...
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    There are a couple of things to consider. ...

    There are a couple of things to consider. Sources of interference is primary. Don't know enough about cars but I assume you are testing sitting in the front sit closest to all the electronics and...
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    Cool - did you ever think about doing a PR back...

    Cool - did you ever think about doing a PR back to @KurtE's library. Think Kurt was looking at implementing something similar.
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    @JarkkoL Very cool indeed. Love the references...

    @JarkkoL
    Very cool indeed. Love the references keep them coming. Haven't had much time to play with 3d stuff for awhile other things got me tied up for now.

    Are you using the ILI9341_t3n...
  47. Not with the ILI9341_t3 lib. You can try the...

    Not with the ILI9341_t3 lib. You can try the ILI9341_t3n lib and use framebuffer. That helps big time to stop flickering. You basically do a tft.useFrameBuffer(1) //turnon then do a...
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    Remember IMUs like the propshield with...

    Remember IMUs like the propshield with magnetometers are sensitive to magnetic fields around them so when you test in a home environ the mag field may be acceptable. But in a CAR depending on where...
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    Yes the ILI9341_t3n supports the T4.0 and you no...

    Yes the ILI9341_t3n supports the T4.0 and you no longer need the SPIN library to use the ILI9341_t3n library. The constructor defaults for the SPI0 MISO, MOSI, and CLK, but you do have to specify...
  50. Hi Joe You got me curious so I have been...

    Hi Joe

    You got me curious so I have been playing with HW scrolling but haven't had much luck. Can't break the code on using layers either thought it might help. Cant seem to find anything with a...
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