Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: virtualdave

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. @KrisKasprzak: yes, parallel. @boxxofrobots:...

    @KrisKasprzak: yes, parallel.
    @boxxofrobots: well yes, that it is a problem, isn't it! That's a bit embarrassing.

    Let me fix my mistakes and come back. I'll also look into the ACS758.

    Thanks...
  2. multiple current sensors advice needed

    Hi all,
    Need some advice from people much smarter than me in the ways of the electricity.
    Quick overview: a Teensy 4.1 is at the center of a new prototype I'm working on, essentially a networked...
  3. thanks for your help. never considered rs485 for...

    thanks for your help. never considered rs485 for this. I built a quick circuit but only the first LED in the chain lights up, and flickers like crazy. I'll keep digging into this option, tho!
  4. amplifying/extending ws2812 digital signal?

    Hi all,
    Need some advice, and curious if it's even feasible. I'm working on a project with a t3.2 at the center, using the fastLED library to drive a bunch of ws2812 LED's. No issues controlling the...
  5. Perfect! Pulldown with a 1k resistor on each...

    Perfect! Pulldown with a 1k resistor on each channel did the trick. My PCB isn't as clean, but it's functional!
    Thank you all again for your guidance.
  6. Thank you all for help with this. I was afraid it...

    Thank you all for help with this. I was afraid it was a mechanical/electrical fix, but it sounds like my issue is addressable, which is great. I'll add some resistors later today and report back.
  7. prevent RGB led from lighting up on boot up

    Hi all,
    Need some circuitry advice. I'm using a PicoBuck LED driver to drive a 3W RGB led. PWM output via pins 21,22,& 23 on a T3.2. LED is powered by external 12V source with shared ground with the...
  8. Replies
    2
    Views
    567

    Thank you!

    Thank you!
  9. Replies
    2
    Views
    567

    OctoWS2811 Adaptor dimensions

    Hi all,
    Making a quick carrier board that incorporates the OctoWS2811 Adaptor (https://www.pjrc.com/store/octo28_adaptor.html).
    Can anyone pass along the dimensions of the board? I can derive the...
  10. Replies
    2
    Views
    1,389

    Well if you want to all technical about it :) At...

    Well if you want to all technical about it :)
    At the time of posting I had logged in about 2 hours on Eagle. A little bit later and I see that adding this/creating a library for it looks to be...
  11. Replies
    2
    Views
    1,389

    eagle part for microSD

    Has anyone created an eagle part for Paul's microSD adapter? (https://www.pjrc.com/teensy/sd_adaptor.html).
    Thanks,
    David
  12. I see this on the Mac, too (10.9.5). Varies....

    I see this on the Mac, too (10.9.5). Varies. Sometimes instant, sometimes up to a minute. Switching USB ports often fixes it for a while. There have been times when I wasn't able to get a new sketch...
  13. Replies
    7
    Views
    1,743

    Hi all, Thanks for the input. Since I have some...

    Hi all,
    Thanks for the input. Since I have some overhead I think I'll use both the 2 or 3-byte header and 2 bytes for checksum. And yes, t3 = t3.x. While beta testing I've been merely passing ascii...
  14. Replies
    7
    Views
    1,743

    byte header for message packet

    Hi all,
    I need some advice...again :)
    I'm doing a bunch of data processing on a t3 and then passing that along to a CPU via bluetooth or USB. The packet is a fixed length (50 bytes), and consists...
  15. Replies
    3
    Views
    1,227

    parallel processing on a t3.1?

    I'm showing my ignorance here, but need to ask. In my main loop I have a lot of time-sensitive processing going on. It needs to do its thing (reading and processing a lot of incoming sensor data and...
  16. Replies
    4
    Views
    3,014

    Perfect. Thanks, Paul. Note you can also use...

    Perfect. Thanks, Paul.
    Note you can also use Go>>Go to folder... (from the finder) to access the file via the finder vs. terminal.

    Very happy there's a hex version of the sketch :)

    Cheers,...
  17. Replies
    4
    Views
    3,014

    OK, so the answer is yes:...

    OK, so the answer is yes:
    http://forum.pjrc.com/threads/25035-Teensyduino-as-a-stand-alone-loader-for-downloading-HEX-files-on-various-computers

    So the only question I have is how best to save...
  18. Replies
    4
    Views
    3,014

    save and upload HEX file on mac

    Question about HEX files.

    I have an update to a sketch (via arduino) that I need to pass along to a client, however I don't want the client to have access to the sketch.

    A little bit of...
  19. Replies
    96
    Views
    37,832

    Yeah, I noticed that, too (see page 1 of this...

    Yeah, I noticed that, too (see page 1 of this thread). Not sure why, but it did finally work after that.

    David
  20. Replies
    1,286
    Views
    498,090

    Hi Paul, Never gets above 2. Shall I email the...

    Hi Paul,
    Never gets above 2. Shall I email the sound files? They are short little snippets. Craps out after about 5 playbacks (but not consistent). Sometimes one mixer input will freeze followed by...
  21. Replies
    1,286
    Views
    498,090

    I know this is old (was on page 7 or this...

    I know this is old (was on page 7 or this thread), but I'm actually seeing the same problems with the latest & greatest. Seems to lock up the board after playing a sound sample several times. Not...
  22. Replies
    96
    Views
    37,832

    Ahh...you aren't using a teensy 3 at all (which...

    Ahh...you aren't using a teensy 3 at all (which is why most of the notes in this thread don't apply to your application). Probably should have mentioned that up front (since the title of the thread...
  23. Replies
    96
    Views
    37,832

    After making the changes above, yes I got it...

    After making the changes above, yes I got it working using the gateway & node sketches that came with the library. Not sure what you mean by "my only hope is the missing pinMode". If you make the...
  24. Replies
    96
    Views
    37,832

    On the t3 any pin could be an interrupt. In the...

    On the t3 any pin could be an interrupt. In the RF69 library it was hardcoded to interrupt 0, which in t3-land is pin 0, which I was using for serial1 communications. So I changed it to 2. And to...
  25. Replies
    65
    Views
    26,861

    OK. And if I want to use an external 5V power...

    OK. And if I want to use an external 5V power supply do I connect to the Vin pin on the T3 (still using the adapter board) (i.e. once programmed, there will be no USB connection)? My current set-up...
  26. Replies
    65
    Views
    26,861

    Hi Paul, Just double checking that the t3 is...

    Hi Paul,
    Just double checking that the t3 is capable of powering the wiz820io? For some reason in the back of my head I had that it drew more than 100mA (can't seem to find that number in the docs)....
  27. @bloodline: oh that's very much a possibility in...

    @bloodline: oh that's very much a possibility in my world :)
    It's just one of those puzzles that hits me every once in a while. Good suggestion to look at how it's handled via UDP (especially since...
  28. Thanks for the pointers. I should have made...

    Thanks for the pointers.

    I should have made the inquiry a bit more generic (rather than just LEDs!). wrt LEDs, yes I could eliminate 255 from the list of possible values, but I'm also getting...
  29. How best to parse / format incoming stream of data

    This question has been on my mind for...years? And now I'm finally sitting down to try to figure this out.

    Let's say I have an array of numbers coming in from a PC to a teensy. Each number is a...
  30. Replies
    471
    Views
    189,928

    I didn't make a set-up for it, but there really...

    I didn't make a set-up for it, but there really isn't a reason why it shouldn't work. If I have time this weekend I'll do a quick test, but no reason why you couldn't do it either if you have a...
  31. Replies
    1
    Views
    3,078

    EEPROM read and write speeds

    Hi all,

    Just want to make sure these numbers looked right. I'm testing read and write speeds to the EEPROM of the Teensy 3 and here are the numbers I'm seeing:

    reading 100 byte array ~= 93...
  32. It can :) running for 24 hours and seems to be...

    It can :) running for 24 hours and seems to be fine. Was measured closer to 70mA, too.
  33. teensy 3 powering another teensy 3 + sensor

    Hi all,
    Just a sanity check here. I have a project using 2 t3's. Only one needs to be connected to a usb port...the other has some sensor processing off-loaded to it.

    Set up:
    t3#1 : only has...
  34. Replies
    10
    Views
    4,866

    Thank you all for the input! (and Paul: your...

    Thank you all for the input! (and Paul: your explanations are always outstanding...I learn a ridiculous amount about the t3 and micros in general from reading all your posts...the time you spend on...
  35. Replies
    10
    Views
    4,866

    Wait...I'm getting old. Apparently I already...

    Wait...I'm getting old. Apparently I already asked a very similar question (although worried about missing incoming data coming while busy doing something in vs. responding immediately to data while...
  36. Replies
    10
    Views
    4,866

    Hi Steve, It's actually fine. I read 100 byte @...

    Hi Steve,
    It's actually fine. I read 100 byte @ 100Hz, process 28 gestures (or possible gestures) and push a bunch of debugging info out the serial port in about 3-4ms, leaving 6 or so ms to make...
  37. Replies
    10
    Views
    4,866

    interrupt based on serial input

    I need some advice / pointers in dealing with interrupts when a particular value comes in one of the serial ports.

    Quick overview: I have lots of sensor data coming in via Serial1. ~100 bytes @...
  38. Replies
    29
    Views
    15,240

    Well it took a while, but today we finally...

    Well it took a while, but today we finally adapted a 9-bit fix we made after I asked the initial question in this thread but before the library was updated by Paul to use Paul's 9-bit option and it...
  39. Great. Thanks as always for the help!

    Great. Thanks as always for the help!
  40. Having different versions of Arduino/Teensyduino on the same computer

    Long story, but am finding that for a project I'm working on I need to revert to teensyduino 1.16. Nothing wrong with the current version, just that an old change we made to the Serial2.c library to...
  41. Replies
    10
    Views
    3,611

    Thank you all for your feedback. Let me whittle...

    Thank you all for your feedback. Let me whittle this down to something helpful to post. The sketch is 2600+ lines...don't think that'll be helpful to post :)

    @el_supremo: never knew about that...
  42. Replies
    10
    Views
    3,611

    OK. And I should know better from experience,...

    OK. And I should know better from experience, too, that my "fix" probably isn't a fix. Any troubleshooting pointers within the arduino environment that might help me watch this more carefully along...
  43. Replies
    10
    Views
    3,611

    Very helpful! Thanks for the pointers (no pun...

    Very helpful! Thanks for the pointers (no pun intended...really...)

    But I'm still a bit baffled why doing a global change of the variable name in my sketch (i.e. dropping or adding a single letter...
  44. Or insert one of the many uber-useful boards from...

    Or insert one of the many uber-useful boards from pololu (http://www.pololu.com)

    e.g. http://www.pololu.com/product/2122
    Pololu 3.3V Step-Up/Step-Down Voltage Regulator S7V8F3:
    "The S7V8F3...
  45. Replies
    10
    Views
    3,611

    when variables go bad?

    Not a bug, just a "what the...?" ...and really just curious if anyone else had seen anything like this.

    So I have a sketch that I've been essentially editing for several months. Suddenly tonight I...
  46. Thanks for the re-direct! Can't wait!!

    Thanks for the re-direct! Can't wait!!
  47. Replies
    1
    Views
    2,110

    Max to octoWS8211

    Hi all,

    While cleaning up some code to help with an artnet to octoWS2811 connection, I cleaned up a simple Max patch and sketch for control of the WS2811 RGB LED's in max via Paul's lovely...
  48. Replies
    471
    Views
    189,928

    It is. One universe can only control ~170 rgb...

    It is. One universe can only control ~170 rgb leds. So you need many many universes to control what even a single T3 is capable of controlling. I think with only minor modification you can have it...
  49. Replies
    471
    Views
    189,928

    Here's the sketch. My set-up is 8 strips of 8 (so...

    Here's the sketch. My set-up is 8 strips of 8 (so 192 channels, hence the 192 in the sketch and patch).



    /* artnet to OctoWS2811 test

    OctoWS2811 Notes:

    Required Connections
    ...
  50. Replies
    471
    Views
    189,928

    OK, got it to work! Sending artnet packets via...

    OK, got it to work! Sending artnet packets via Max (via david Butler's artnet externals for Max), controlling a small strip of 8 ws2811 LEDs. However I am getting flicker in the LEDs which I don't...
Results 1 to 50 of 104
Page 1 of 3 1 2 3