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

Search:

Type: Posts; User: BriComp

Page 1 of 8 1 2 3 4

Search: Search took 0.01 seconds.

  1. 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?
  2. Replies
    98
    Views
    6,934

    Just gave it a try, that works. Teensyduino 1.54...

    Just gave it a try, that works.
    Teensyduino 1.54
  3. 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.
  4. Replies
    60
    Views
    1,295

    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?
  5. Replies
    60
    Views
    1,295

    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.
  6. Replies
    60
    Views
    1,295

    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...
  7. Replies
    60
    Views
    1,295

    I have a program here that used to compile and...

    I have a program here that used to compile and run but which will no longer compile. It was ok on teensy 3.5 on Arduino 1.8.15 and Teensyduino 1.54.
    The problem seems to be on SD and...
  8. @Paul which is correct 10mA or 4mA? One or other...

    @Paul which is correct 10mA or 4mA?
    One or other of those pages needs changing, or a clarification made.
  9. Replies
    8
    Views
    264

    If you can get a handle on the amount of drift...

    If you can get a handle on the amount of drift you could periodically increase/decrease your counter to compensate.
  10. Teensy' Tech Spec...

    Teensy' Tech Spec
    The above table from the PJRC web site lists the allowable current as 10mA per pin.
    Are you saying this is wrong?
  11. Replies
    74
    Views
    1,585

    What do you mean? mach - going at the speed of...

    What do you mean? mach - going at the speed of sound!!
  12. Replies
    68
    Views
    1,645

    What are you saying here?

    What are you saying here?
  13. Replies
    4
    Views
    174

    It makes your code more readable if you enclose...

    It makes your code more readable if you enclose it within code tags.
    You are more likely to get some help then.
    It's not difficult!!

    void loop()
    if(first){
    main_timer.begin(tim,...
  14. Replies
    10
    Views
    315

    If you don't show your code, then we are unlikely...

    If you don't show your code, then we are unlikely to be able to help you. The code in MultiThread_2.ino does NOT use milis() as was suggested in a previous reply in order to try to help you.
  15. Replies
    10
    Views
    315

    You still have 1 second of delay. What do you...

    You still have 1 second of delay. What do you expect!!
  16. Replies
    10
    Views
    315

    Can you show your code for your milis() method.

    Can you show your code for your milis() method.
  17. What's all this rubbish?

    What's all this <Place Holder> rubbish?
  18. Hi @StingingNettle how are you getting on with...

    Hi @StingingNettle how are you getting on with your project?
  19. Replies
    3
    Views
    190

    You don't say what sensor you are using nor do...

    You don't say what sensor you are using nor do you state the type of output from the sensor.
    I googled an ethanol sensor which had the following information on it's sensor output. I do not know if...
  20. Replies
    6
    Views
    243

    When the string is received are there any...

    When the string is received are there any terminating characters, ie carriage return/Line feed (0D/0A)?
  21. Serial.begin(9600) ; The "9600" has NO...

    Serial.begin(9600) ;


    The "9600" has NO EFFECT upon USB Serial speed.
  22. Replies
    11
    Views
    444

    Just asking if they are the same thing. Search...

    Just asking if they are the same thing. Search for Oono and you end up at a Chinese manufacturer/supplier.
  23. Replies
    11
    Views
    444

    Same Chinese manufacturers/suppliers?

    Same Chinese manufacturers/suppliers?
  24. How about one of these...

    How about one of these, Agreed its not 110/220v input but you could run it off one of your existing supplies. Amazon have similar versions.
    Or one of these mains powered bench power supply.
  25. Using one of these...

    Using one of these might make life easier.
  26. Replies
    26
    Views
    562

    Apparently he wants simultaneous send/receive...

    Apparently he wants simultaneous send/receive over LORA, so looking at implementing two radios.
  27. Replies
    26
    Views
    562

    Talking to two devices on the same channel at the...

    Talking to two devices on the same channel at the same time?
  28. Apparently not but still available at a few...

    Apparently not but still available at a few retailers.
  29. Replies
    26
    Views
    562

    Yes but surely this means that he can only use...

    Yes but surely this means that he can only use ONE SPI device at a time. He wants FULL DUPLEX not HALF.
  30. This...

    This (PropShield) might be useful, includes amplifier, memory for sound data storage and motion detectors. Anyway the page has a lot of useful information for you (software and hardware) about...
  31. Yes that should be ok. See here....

    Yes that should be ok.
    See here.

    Here is the datasheet for the amplifier board you suggested. It looks like it has all the required Rs and Cs (see reply below).
  32. It seems that you should not connect a speaker...

    It seems that you should not connect a speaker directly to the DAC output and should go through an amplifier.
    See here.

    I just found this. An integrated speaker and amplifier which will just fit...
  33. Replies
    26
    Views
    562

    Why do you want both of them on the same Teensy?

    Why do you want both of them on the same Teensy?
  34. I don't see why not. I would investigate...

    I don't see why not. I would investigate connecting speaker directly to DAC. You may need to go through a DC blocking capacitor.
  35. Replies
    26
    Views
    562

    The DRF1278F uses the SX1278 which works in...

    The DRF1278F uses the SX1278 which works in master/slave (or many slaves) mode. Master transmits, slave(s) reply.
  36. As far as vibration/tilt sensing is concerned I...

    As far as vibration/tilt sensing is concerned I would start with 3 tilt sensors (your angle sensor) placing them inclined outwardly to form a pyramid. Set the inclination so that they are just not...
  37. Replies
    4
    Views
    216

    What version of Arduino and Teensyduino are you...

    What version of Arduino and Teensyduino are you using?
    Latest Teensduino in beta includes corrections for NativeEthernet.
  38. Replies
    26
    Views
    562

    Info is here....

    Info is here.

    Since in this implementation the maximum throughput is only 9.6kbps why not use one of these. Similar throughput but communicates vis UART with many drivers available.
  39. That's better, more than doubles the timeframe. ...

    That's better, more than doubles the timeframe.


    ...yes but so is realism. So many projects have failed or been spoilt by having an unrealistic timeframe.




    You could try these. I don't...
  40. Replies
    26
    Views
    562

    What Lora modules?

    What Lora modules?
  41. Using two resistors as a potential divider to...

    Using two resistors as a potential divider to obtain 5v is not a very satisfactory solution. Effectively Teensy will not consume a constant current and will therefore appear as a variable resistance...
  42. It's not September, the exhibition starts on 2nd...

    It's not September, the exhibition starts on 2nd Sept so, essentially it's what is left of August.
    Say 10 days. That gives you 3 days for slippage, assuming you work 7 days a week until it's done....
  43. Replies
    8
    Views
    261

    Yes, I was going to use T4.0 for my satellite...

    Yes, I was going to use T4.0 for my satellite stations, but have had to fall back to T3.2 or even LC.
  44. Replies
    8
    Views
    261

    You might be interested in some work I did to...

    You might be interested in some work I did to investigate the Teensy recovery time from various sleep states for various Teensy.
    The results are here.
  45. Replies
    8
    Views
    261

    Yes, for the T4.1 the wake-up method from...

    Yes, for the T4.1 the wake-up method from DeepSleep is reset.
    The Library does not seem to be supported any more. I have asked info about the library a number of times without any response.
  46. Replies
    33
    Views
    1,958

    Why not try ADUM1201...

    Why not try ADUM1201?
    Extraction from Data Sheet:

    Analog Devices also have other devices of the same family with differing numbers of I/O channels.
    Selection chart here.
    ADUM140D is a 4 channel...
  47. Sorry, out of suggestions. Anyone else want to...

    Sorry, out of suggestions. Anyone else want to chime in?
  48. Just found this....

    Just found this.
    You could try changing the model to SSD1289, which happens to be a 320X240 16 bit display.
    Otherwise check and re-check your connections.
    The easiest way is to disconnect and then...
  49. You haven't shown 3.3v and gnd used. I assume you...

    You haven't shown 3.3v and gnd used. I assume you have.
    Other than that a picture of your setup where the connections can be confirmed.
  50. I suggest you use the hurry/lazy method as in the...

    I suggest you use the hurry/lazy method as in the discussion below. Before starting it might be advisable to copy the UTFT library as orig_UTFT. That way it can be put back to "normal" quite easily....
Results 1 to 50 of 365
Page 1 of 8 1 2 3 4