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    Project show off

    Thank you! I have to say the robot was a way more complex project. It took me quite a while to figure out the balancing and do the AI stuff for vision. Learned a lot:).
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    Project show off

    Thank you! I'll see if I can get the video of the whole performance and ill post it here. Closest you can come to seeing it i guess:). The whole suit making thing took us longer than expected and we ran out of time to really focus on the performance part. There is much room for improvement on...
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    Project show off

    There isn't a dedicated show off category so ill just post here. I have been using teensys fo a while now, heres my graveyard to prove it:) Anyway, I wanted to show the last two projects I did with them. https://www.bostjancadez.art/sl/kvintesenca and...
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    Teensy 4.0 with OctoWS2811

    Hey Paul, yes I tried doing that early on. Actually as I'm trying to debug this I only have the control box and nothing but the IMU connected. The only thing that helps is not calling leds.show(). Without that call the IMU works for hours (left it over night), with the call, i2c freezes (teensy...
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    Teensy 4.0 with OctoWS2811

    Tried using teensy4_i2c instead of Wire but it also fails and reports a timeout. :/
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    Teensy 4.0 with OctoWS2811

    I don't know how to really interpret this but it seems the library somehow borks i2c. Another debug trace: Received: Header: 12 00 05 BA Body: 4B 10 FF 02 D0 00 D0 3D 00 00 00 00 00 00 Length:18 Channel:Gyro-vector Received: Header: 12 00 05 BC Body: 4B 10 FF 02 FF FF FF FF FF FF FF FF FF FF...
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    Teensy 4.0 with OctoWS2811

    After looking a bit more this is what i found so far. Using the debug feature of the bno080 library I get: Received: Header: 12 00 05 64 Body: E3 22 0E 01 AC 00 A3 35 00 00 00 00 00 00 Length:18 Channel:Gyro-vector Received: Header: 12 00 05 66 Body: E3 22 0E 01 AC 00 A3 35 00 00 00 00 00 00...
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    Teensy 4.0 with OctoWS2811

    Im trying to use this with a bno080 over i2c but what happens is, the frame-rate drops for a while then the sensor doesn't return readings anymore. If I don't call leds.show(), the sensor works normally. Could this library interfere with i2c in some way? I also tried using bno055 on i2c and a...
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    BNO080 Observations

    Yes the quats update at 1khz (and you also get the gyro data). The IMU integrates it from the gyro and corrects it with the underlying rotation vector every 100hz. This period is adjustable and you can also choose which vector corrects it. Either 6 axis game rotation vector (default) or the 9...
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    BNO080 Observations

    I have been playing with it recently (use it in my balancing robot). I fixed up SPI a bit and added support for gyro integrated rotation vector. It still needs some testing but, I can get 1 khz updates with gyro integrated rotation vector. Try the TareFunction branch from...
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    Teensy 4.0 with OctoWS2811

    Have the same issue myself. Did you figure anything out?
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    VGA output

    Ok i think i made a step forward. the thing that helped a lot was put a noInterrupts() at the beginning of the routine and interrupts() at the end. completely forgot about that one:). It helped enough that i even got an image on my LCD. But even with this there is still some periodic jitter...
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    VGA output

    i tried using two timers at first but that is even worse. they drift in relation to one another. it has to be something more basic that I'm missing. even this simplest way of toggling pins has LOTS of jitter. i just don't get it. #define HSYNC 3 #define VSYNC 4 volatile int kaka; void...
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    VGA output

    i thought id make myself some king of glitch generator i could use for VJing. so i started today and spent the day trying to get an image (any image). luckily i have a cheap VGA to composite converter, which is really forgiving with the timings, so even with my naive approach i was able to get...
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    Teensyduino 1.17 Release Candidate #1 Available

    I was hoping that the serial stuff you did would somehow fix the problem im having while using u8glib. For some reason any time I draw something to the display, Serial1 can't send anymore until i call Serial1.begin(). I can manage with this workaround but i wonder why that is.
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    connecting pin 33 to ground prevents teensy3 from booting

    Is pin 33 special in some way? if i connect the pin to gnd through a resistor the program never runs. you can connect it after power up and its fine but before power up it messes things up. i tried two boards, same thing on both.
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