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  1. Formatting JSON HTML Posts

    Hello All,
    Having trouble finding the right thread for this question.....
    I'm trying to modify the WebClient example for Teensy 4.1. The google connection worked...this gave me enough joy to...
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    Hello All, I've just got my first Teensy 4.1...

    Hello All,
    I've just got my first Teensy 4.1 here with the PJRC magjack kit. updated Teensyduino to 1.54 Beta #9, and have compiled the WebServer example. But.....I get a message.

    My guess...
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    Not exactly the place to post this, but how are...

    Not exactly the place to post this, but how are global supplies of the MIMXRT1062? i.e. what would happen if we ordered 1000 Teensy 4.0's per month for the next 10 months? And, we are...
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    What about 0.050 pins with a pin out where every...

    What about 0.050 pins with a pin out where every other pin gives you a Teensy 4.0 pin out and the pins between bring out extra signals? Cut off the even pins and the 0.050 device goes in a...
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    Very nice sounding Rolf. I will be getting a...

    Very nice sounding Rolf. I will be getting a PJRC audio shield in a project in the coming weeks and look forward to following your path.
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    Yes, it compiles. Poking around for how to map...

    Yes, it compiles. Poking around for how to map the SPI pins to the Teensy4.0 It looks like the default LoRa transceiver is this one https://webshop.ideetron.nl/Nexus?Lng=en
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    Teensy & LoRa Beelan library

    Hello All,
    Could anyone comment on the feasibility of Teensy 4.0 compatibility with the https://github.com/BeelanMX/Beelan-LoRaWAN#arduino-lorawan-library-by-beelan library for LoRa?
    Thank You,...
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    This is a bit of an old thread, but what has...

    This is a bit of an old thread, but what has become of this project? I would like to explore a LoRa/Teensy solution for a commercial product. Thank You.
  9. Thanks Luni, Right, actually 7.22 decimal...

    Thanks Luni, Right, actually 7.22 decimal places..... https://en.wikipedia.org/wiki/IEEE_754 I'm just looking at the discrepancy cited above. I may have to ignore this small error and move on,...
  10. String of floats reader and store to array and EEPROM.

    Luni, Pilot, Defragster, et al....

    Please let me know if this rabbit-hole adventure is appropriate for the PJRC forum, of if it might be better to move it. Thank You.

    The attached .ino is an...
  11. Thank You luni, You are correct about what the...

    Thank You luni,
    You are correct about what the code does. It reads a string of comma delimited floats. The parameter after the $IS, is how many floats to expect. The next int (addr) is a sort...
  12. Thanks luni. I'm assuming the Teensy 4.0...

    Thanks luni. I'm assuming the Teensy 4.0 represents an internal 32 bit float as IEEE-754 and a bytewise copy will preserve the components of 754. That said..... input strings like ...
  13. Thanks Pilot...... I will need to let the...

    Thanks Pilot...... I will need to let the sophistication there sink into my caveman brain a while.
    In the meantime, this is just merged from the EEPROM.get & EEPROM.put examples...

    #include...
  14. Thank you Defragster. Looking at that now.

    Thank you Defragster. Looking at that now.
  15. Reading strings of floats and saving in Teensy EEPROM

    Hello All,
    This code reads in a string of floating point numbers to the Teensy and places it it an array. What I am having trouble with is then storing the values in EEPROM, so they don;t have to...
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    Hello Defragster, Do you know if the Teensy 4.0...

    Hello Defragster, Do you know if the Teensy 4.0 gets put in program mode (PGM LED is dim, waiting for code state) and no code ever arrives, if the loader on the Teensy will eventually time out and...
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    I also feel like I'm missing something obvious,...

    I also feel like I'm missing something obvious, and you may be on to it. The apparent wrap around issue. But even if that is the issue, I would think the 3 LSbits in the epochTime variable after the...
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    ms timestamp since 2020.

    Hello All,
    Been futzing with making a millisecond resolution timestamp for data logging. Thought a good approach would be a millisecond timer since Jan 1, 2020, a sort of 'covid epoch', but in...
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    Hello Paul, Sorry this is so late, 8 years after...

    Hello Paul, Sorry this is so late, 8 years after your post. We're running into an issue with the Teensy 4.0 on a new project. in the above 'simple & cheap' version, should you catch the Teensy...
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    Sorry Paul, That's what's got me. I'm not sure...

    Sorry Paul, That's what's got me. I'm not sure where the problem is, all looks good. Right up till the loader stops and asks you to hit the Teensy button.
    I guess I need to dig into just what...
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    Teensy 4.0 command line loader

    This is more of a linux question wrt. the Teensy command line loader. Using the 4.0, and we've recompiled to loader for a Tordex Colibri environment. Had it working great for 3.2. Now, getting...
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    Wire, I2C & Teensy 4.0

    Hello All,

    Are there any thoughts out there on any of the enhanced versions of Wire.h? This is for a Teensy 4.0 based product we wish to deploy for road testing soon.

    I made the mistake of...
  23. If she doesn;t hum it whilst soldering, send her...

    If she doesn;t hum it whilst soldering, send her a link to "Soldering" a reggae song by Hall & Oats. Definite nice earworm when you flick on the Weller. :)
  24. Thanks KurtE, Will check in on them. Enjoy the...

    Thanks KurtE,
    Will check in on them. Enjoy the jellybeans!
  25. Just to chime in with bigboosted here...... ...

    Just to chime in with bigboosted here...... Good to know Paul. I'm sure you'll get PJRC's people and business through this. Who'd have thought?
  26. Semi-Covid related question? I hate to...

    Semi-Covid related question? I hate to patronize any business that are stayng open (no matter how vital) which are not seriously stepping up their game wrt. their employees, and the general public...
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    Thanks blackletter..... I was wondering if that...

    Thanks blackletter.....
    I was wondering if that were the problem, because I think the version we have installed was last summer. Teensy 4.0 was fall 2019 I think. Will check that out,
    Again,...
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    Teensy 4.0 loader on Linux SBC

    Hello All,
    I'm trying to load a hex file for Teensy 4.0 on a ubuntu IoT SBC. This worked great on the 3.2, but I get an unknown MCU type "imxrt1062" when I modify the command for Teensy 4.0 like...
  29. Reply to defragster's post above.....

    If I understand what you suggest then, I'd set an IRQ timer at say 50mS, and in the IRQ just quickly check SerialX.available and pull out of the serial buffer into the circular buffer. Sort of...
  30. Thanks Defragster.... Here's how I'm looking...

    Thanks Defragster.... Here's how I'm looking at this at the moment... Teensy 4.0 has 5 serial ports. It's a generic case..... suppose one wished to really use that capacity at 'high' data rates...
  31. Thanks defragster. Good to know TeensyDuino...

    Thanks defragster. Good to know TeensyDuino 1.5 is out. Also that calling and passing over the loader is normal.

    I have a bit of a program design question I've been thinking about.....how to...
  32. OK, that's interesting....I closed the teensy...

    OK, that's interesting....I closed the teensy loader, and hit the Verify/Compile checkmark (ctrl-R) at the upper left of the IDE, NOT the upload arrow next to it. The result was that the loader did...
  33. Another update...

    Sure enough, it did appear to link and write the hex file
    18925

    But the other directories were empty. I opened the .hex file and it looked OK (as near as one can tell unless you're at a...
  34. continued from above......

    Follow-up: It appears to be an environment problem? Blinky.ino gives the same error. Namely

    Teensy Loader could not find the file Blinky2.ino

    quitexit status 1
    Error compiling for board...
  35. Dual Teensy Dual LIDAR IoT Frankenstein project

    Hello All,

    Apologies in advance, I know this is something simple stupid.

    Just received the first run of some new PCB's which hold two Teensies, and have connectors for Benewake LIDARS. It...
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    Thanks KurtE. Great context to move ahead. ...

    Thanks KurtE. Great context to move ahead.
    BTW, you're right on the 400KHz. Playing with that and using 2.5K external pullup resistors I was able to run the Garmin LL3's at 1MHz, But not...
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    Hmmmm.... closer..... I included Wire.h,...

    Hmmmm.... closer..... I included Wire.h, but am getting errors like:
    error: 'I2C_PULLUP_INT' was not declared in this scope
    Wire.begin(I2C_MASTER, 0x00, I2C_PINS_18_19, I2C_PULLUP_INT,...
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    Garmin did get the I2C address issue fixed in...

    Garmin did get the I2C address issue fixed in March 2019, so as you mention, there's great flexibility with the T4 to solve this. Startup hiccups from when Garmin bought the LL3 design from the...
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    Thanks for looking it over. Very good stuff...

    Thanks for looking it over. Very good stuff defragster & mjs513!

    Including Arduino.h did the trick wrt the serial errors! Why did it compile for the T32 and not the T4?

    You're right,...
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    Right files now included.....

    Sorry guys, I did indeed zip & upload the wrong file(s) 18798 is the monster messy version. I've since put together a combination of the two, bringing over a bit of code at a time to get a...
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    Teensy 4.0 not compiling Teensy 3.2 code

    Hello All,

    Apologies to professional programmers for how nasty the attached project code 18796 will appear. This project compiles without error for Teensy 3.2 under Arduino IDE 1.8.9 and...
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    How to start a thread?

    Drop one level under the main forum to one of the sub-groups there and a new thread can be started there.
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    Having a similar problem here migrating working...

    Having a similar problem here migrating working code from T3.2 to T4, except that I get compiler errors like: error: 'Wire' was not declared in this scope
    Wire.begin(I2C_MASTER, 0x00,...
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    This is probably not the best place for this...

    This is probably not the best place for this question...... I'm migrating a project from Teensy 3.2 to Teensy 4.0. The compiler is generating a lot of errors like TFmini.cpp:13: error: 'Serial3'...
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    Problem solved: After some work with the I2C...

    Problem solved: After some work with the I2C calls & a memory dump to Garmin, they did a firmware update to get the I2C alternate addressing to work. If you wish to run dual LL3 LIDARS on a...
  46. Hello All, Going through this now..... using...

    Hello All,
    Going through this now..... using Teensy 3.2 soldered on to a carrier PCB. Got here through: https://www.pjrc.com/store/ic_mkl02.html
    But what I was hoping to find when I came across...
  47. Thanks for the suggestions all..... will poke at...

    Thanks for the suggestions all..... will poke at them a bit. ;-)
  48. Compiler between Arduino and Visual Studio for Teensy?

    Hello All,
    Does anyone have a recommendation for an IDE/compiler that's a step-up from Arduino, but not necessarily as complex as Visual Studio?
    Thank You,
    -John
  49. Thumbs up! Fellow EE here too..... Fortran...

    Thumbs up! Fellow EE here too..... Fortran and punch card era. I've seen a few posts by folks just getting started that sort of lead me to the instrumentation issues.

    In any event, glad...
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    LIDARLite library and i2c_t3

    Hello All,
    I've had a bit of trouble switching addresses on the Garmin LIDARLite. It's reading distances marvelously, but to use two on a single I2C bus, thus far making i2c_t3's wire calls has...
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