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Type: Posts; User: riodda

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  1. Replies
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    very interesting, do you have also a program that...

    very interesting, do you have also a program that replay the logs to can?
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    This is the function that paul calls in his repo...

    This is the function that paul calls in his repo to ouptut euler angles


    static void fNEDAnglesDegFromRotationMatrix(float R[][3], float *pfPhiDeg,
    float *pfTheDeg, float *pfPsiDeg, float...
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    Here is what i got with your snippet, huge...

    Here is what i got with your snippet, huge correlation between roll and yaw, small between pitch and yaw, almost null between pitch nd roll.
    I would be very curious if you could do the same graph...
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    It's quite strange, the magnetometer calibration...

    It's quite strange, the magnetometer calibration doesn't not seem too bad as per the picture of the last post, with Paul's visualizer there is no crosscorrelation between yaw and roll, the nxp code...
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    A little update. I knife and forked the code i...

    A little update.
    I knife and forked the code i was playing to ouput raw data rescaled to 14bit (NXP dof works at 14, the LSM9 at 16) and i gather the data with paul's motion sensor calibration tool....
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    mmm looks like a big job for me to port the...

    mmm looks like a big job for me to port the calibration routine to LSM9DS0.
    How did you solved the calibration for your minishield woth LSM9DS0 onehorse ?
    As you can see i've tryed your sketch but...
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    well actually your sketch that i've used does...

    well actually your sketch that i've used does calibrate the magnetometer but the problem is still there as you see from my last post...i'm just haveing troubles in storing the calibration in the...
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    Little update, i've used your github code (just...

    Little update, i've used your github code (just changed the address and incorporated the madgwick function into the sketch) and i have the same result, that makes me beliving a sligtly little bit...
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    yes is do pass the scaled sensor data and the...

    yes is do pass the scaled sensor data and the calib is done in the setup of the main sketch calling
    sensor_9dof_configure();
    and in that function i do call
    dof.calLSM9DS0(gbias, abias);
    that...
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    In the main GPS sketch i call this 2 lines: ...

    In the main GPS sketch i call this 2 lines:



    ......................
    Metro read_dof= Metro(10);
    Metro update_quat=Metro(2);
    ......................

    if (read_dof.check())
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    I'm updating the madgwick algorithm at 500hz and...

    I'm updating the madgwick algorithm at 500hz and feeding it with data at 100hz, i will post the code.
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    I Ressurect this discussion about the 9dof...

    I Ressurect this discussion about the 9dof sensor.
    I'm playing with a LSM9DS0 on the GPS board from smoking resistor, and i'm a bit puzzled about the behaviour of the behaviour of the tain bain...
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    Thanks !!! Very helpfoul I thinik this should be...

    Thanks !!! Very helpfoul I thinik this should be put someware in the teensy 3.x product details.
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    datatypes bit depth

    It really sounds like a silly question and it probably is but i think it will be helpfoul for coding newbies (like me) to create a small table to summarize the various datatypes bit depth for the...
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    Thanks for the tips, yes diode is just to protect...

    Thanks for the tips, yes diode is just to protect from reverse polarity, about the caps from the datasheet of the regulator if i put the larger cap after the reg i need a diode from the 5v to the vin...
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    On my previous project i had some troubles with...

    On my previous project i had some troubles with fast redraws of 7 segment led at high brightness (the micro was an AT90CAN) and i've never properly undestood the reason for the freeze of the system...
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    I've changed the sd reader and re checked the...

    I've changed the sd reader and re checked the pins of the sd, i hope to have it right now.
    Many thanks.
    7899
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    Quick schematic check

    I would really apreciate if somebody could have a quick look to this schematics just o be sure i haven't done anything wrong expecially on the SD.
    Many thanks !
    7898
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    Scratching my head over data formats

    Hi all, i'm working on a canbus connected GPS + IMU.
    i'm tring to send the data over the canbus but i'm having some issues with the data formats.
    I'm using 3 kind of unions, one with 32 bit for...
  20. I got into the same OLED i would love to use it,...

    I got into the same OLED i would love to use it, therfore i would like to know if you did some progess on this matter.
    Thanks.
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    Sorry i've been very googlelazy ! ...

    Sorry i've been very googlelazy !

    https://github.com/rambo/SimpleFIFO
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    Bearing Calculation and Ring Buffer

    Hi All, i come to you with a coding newbie questions...
    i'm implementing a 50Hz Canbus GPS using teensy 3.1, and all seems to be working ok, now i'm in the stage now were i have to calculate the...
  23. Thread: Teensy 3.2

    by riodda
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    I got mine from the last order from Oshpark and...

    I got mine from the last order from Oshpark and it's alredy on my Racecar tyre temperature sensor prototype !
    I wonder Paul if after teensy LC you may consider doing an HC or pro version, i had a...
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    What is you suggestion for very small runs for...

    What is you suggestion for very small runs for which ospark is perfect pricewise, it's just slow in oversea shipment (to keep a affordable price).
    Thanks.
  25. Thread: Teensy 3.2

    by riodda
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    Many thanks for your precious work Paul ! may i...

    Many thanks for your precious work Paul ! may i put on the teensy 3.3 wish list a 12v capable regulator a canbus transcriver and i2c pullups ?
    cheers !
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    i figured out why my filtering was not working, i...

    i figured out why my filtering was not working, i forgot to set the mask, for who will need here is a working can filtering sketch.




    //...
  27. Replies
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    Twisted pairs i not that importan unless you work...

    Twisted pairs i not that importan unless you work beside a nuclear fusion reactor :) or if you lines are gettin very long.
    Just check wires ad termination resistors (1 on 20cm short wires at...
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    it may sound silly but when i can't initialize...

    it may sound silly but when i can't initialize the bus normally the bus itself is not ok, missing terminators or pairs not twisted or ground levels too different, the other issue could be that the...
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    Hi i'm tryin to make the filtering working on my...

    Hi i'm tryin to make the filtering working on my canbus example sketch, i connected the tensy to the PCAN and the bus is ok i send and receive correctly. I've tryed to setup the 8 filters on the...
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    I'm briging back this thread, i've managed to...

    I'm briging back this thread, i've managed to change the amps and the power supply and now i can record 2 streams without any noise coming in, my educated guess is that with 2 recordings the power...
  31. did you tyred this libray ?...

    did you tyred this libray ?
    http://playground.arduino.cc/Main/IEEE754tools
  32. Very nice ! did you build it in ChibiOS or in the...

    Very nice ! did you build it in ChibiOS or in the arduino ide ?
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    Many thanks for you help, i've updated the...

    Many thanks for you help, i've updated the gerbers and i'll wait oshpark to deliver !
    Thanks.
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    i have it for the MLX90620 that is 60 instead of...

    i have it for the MLX90620 that is 60 instead of 120 and 4times slower and noiser, you can find full code for teensy here

    https://github.com/robinvanemden/MLX90621_Arduino_Processing
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    Teensy to MLX90621ESF Design Review request

    Hi all, i've did my first electronic design (plase bear in mind i'm a mechanincal engineer), the teensy shield I designed contains one canbus trascriver one volteage regulator for power supply and...
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    mmm i havn't the pull ups, that maybe the cause,...

    mmm i havn't the pull ups, that maybe the cause, internal pull ups arn't avilable for i2c pins?
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    4732i've compiled with the teensy at 24mhz but no...

    4732i've compiled with the teensy at 24mhz but no changes unfortunately.
    with arduino uno the display works fine with both

    U8GLIB_SH1106_128X64 u8g(U8G_I2C_OPT_NONE); // I2C / TWI ...
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    I messed up the files, now it compiles but i have...

    I messed up the files, now it compiles but i have no output on the disp, i've hooked display SCL to teensy pin 19 and SDA to pin 18 (powered at 3.3 from the teensy).
    The same display works fine on...
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    i have one of those cheap SH1106 I2c, and it...

    i have one of those cheap SH1106 I2c, and it works flawless with arduino but as you mention seems not to be working with Teensy. i've give a quick test to your hack but i got a compile error:
    I've...
  40. So if i am not mistaken you can manipulate your...

    So if i am not mistaken you can manipulate your data streams only trought the SGTL and the teensy act only as control of the audio board ? With you hack to the SGTL codec are you able to mix to 2...
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    i've used this one for the teensy and it works...

    i've used this one for the teensy and it works fine, you should be able to find even lower than 5bucks.
    ...
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    I had a look to your sketch and the main...

    I had a look to your sketch and the main difference is that it's a sketch and not a library for a newbie like me can be a bit confusing looking in that big code (but i have to admit that sometimes is...
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    I've used a 5 sample runaverage to increase the...

    I've used a 5 sample runaverage to increase the resolution even if is not the right way to do it, i should have used oversampling but it would have lowered to mouch the dynamic response of the...
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    I agree i played a bit with the VL6180X and it's...

    I agree i played a bit with the VL6180X and it's great the only drwaback i find is the resolution, i would have apreciated a 0,1mm resolution even with a 1mm accuracy to be able to play a bith with...
  45. Mate i'm italian and i can say that italy can...

    Mate i'm italian and i can say that italy can hardly be considered a developed country nowdays ! :D
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    I agree would be really cool to have it !

    I agree would be really cool to have it !
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    I think i copyed from your git hub just the...

    I think i copyed from your git hub just the mixer4 file you say you have modifyed not all the lib.

    Well the timing i got from the serial are ok to write 2 files as i posted some days ago but it...
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    ok i shielded all the audio part and while not...

    ok i shielded all the audio part and while not recording i have no noise, but as soon as i start recording i start haveing a very bad noise, in the link audio outpur recorded from teensy to pc...
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    I whant to put a cable with a connector in the...

    I whant to put a cable with a connector in the middle beween the audio board and the mic amps, right now i have just patch cords with no shield at all, the schematic represents the cable i whant to...
  50. Thread: EQ + Compressor

    by riodda
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    i will try to the compressor too, thanks for...

    i will try to the compressor too, thanks for sharing your experience and your future findings!
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