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  1. Thread: PropShield LC

    by vspear
    Replies
    3
    Views
    980

    Talk about digital recycling for pins! Many...

    Talk about digital recycling for pins! Many thanks for this info.
  2. Thread: PropShield LC

    by vspear
    Replies
    3
    Views
    980

    PropShield LC

    The PropShield LC pin LED at pin 13 glows dimly without driving it HIGH - apparently when a sound file is played from Flash Mem or something is being read from Flash Mem. Is this possible default...
  3. Replies
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    79,732

    It's 500 CPR/2000 PPR - sufficient for my...

    It's 500 CPR/2000 PPR - sufficient for my project, but may go for higher resolution. On a zip wire-line trolley, it gives me results that vary off by at least 1 to 2 full revolutions on returning...
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    79,732

    Awesome! Will check this out. Note: Switched...

    Awesome! Will check this out.

    Note: Switched the pins to 22,23 on the T3.2 and used encoder.h (teensy lib for encoders). Works fine.
    Now trying to figure out how to modify the examples in this...
  5. Replies
    87
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    79,732

    Same issue seen as in the last post : 1's and 0's

    Using an US Digital E4T quad encoder 5V supply with channel pins connected to T3.2 pins 3,4 ( no external resistors). Getting only a string of (1,0,1..)
    Encoder spec: 12088
    Phase relationship:12089...
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    1,050

    Found some good hints with the usual error factor...

    Found some good hints with the usual error factor caveats here, http://www.keyglove.net/2011/10/12/acceleration-velocity-position-and-dead-reckoning/
    Positioning technicals included:...
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    1,050

    Linear velocity from FXOS8700CQ - Prop Shield

    I'm looking for some pointers on using the IMU to obtain linear velocity and distance traversed in a flat plane using the prop shield and Madgwick or Mahoney fusion algorithms. I could integrate just...
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    1,838

    Tested Frank's beta test example and sample...

    Tested Frank's beta test example and sample halloween files, playing one by one. Realized I had not soldered the five pins near the button side due to being in a hurry to get some sound, so I jury...
  9. Replies
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    1,838

    Very useful video tutorial. I assume that only...

    Very useful video tutorial. I assume that only the .RAW format is supported by the PropShield as opposed to .WAV since the design tool only offers PlayFlashRaw?
  10. Replies
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    1,838

    Awesome. Same code as the T3.2+Audio card?

    Awesome. Same code as the T3.2+Audio card?
  11. Replies
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    1,838

    Propshiled - polyphonic audio

    Is it possible to play Polyphonic channel stereo like the Audio shield for a T 3.2 with the Propshield only?

    It would be great to have some tested opinions from the experts. I think the T 3.2+...
  12. Replies
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    2,796

    Can't find the link on Tindie...

    Can't find the link on Tindie...
  13. I'm now trying to Daisy Chain at least 3 of the...

    I'm now trying to Daisy Chain at least 3 of the ILI9341s modules via SPI with one Teensy 3.2 using the optimized library (with or without the Audio Board). To achieve something similar to this...
  14. Indeed it does. I'll add a 1K micropot with 100...

    Indeed it does. I'll add a 1K micropot with 100 ohm in series (for safe minimum val to 1k max) for adjustable brightness.
  15. Duh..Ok decided to try without the Audio card,...

    Duh..Ok decided to try without the Audio card, default 3.1 settings and it works for me fine after a whole day of futzing - but only if I connect a resistor (used 940 ohm) between LED pin and vIN.
    ...
  16. I'm trying to get the ILI9341 TFT + Teensy 3.2 +...

    I'm trying to get the ILI9341 TFT + Teensy 3.2 + Audio Card to work based on the suggested alternate pin routing and the Highly Optimized Library in the documentation, but get a blank screen using...
  17. Can you please post the circuit - interesting project

    Would be great if you could post the schematic that is currently working for you using the Audi card Line Out, TFT LCD and Adafruit Amp. Working on something similar and have some issues with noise....
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    5,890

    I've had both - a Teensy 3.1 and 3.0 bricked...

    I've had both - a Teensy 3.1 and 3.0 bricked yesterday.

    Running the SparkFun regulated 5V->3.3V Xbee regulator adapter that has worked well for years on other boards including the Arduino.
    ...
  19. Replies
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    17,159

    Fascinating. Battle testing will certainly yield...

    Fascinating. Battle testing will certainly yield a superior product. There is no substitute (yet) for hard core regression testing.

    Cheers.
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    17,159

    Have to get my scope out and test this coming...

    Have to get my scope out and test this coming weekend with the ultrasonic motor drivers. Looks very promising indeed....
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    17,159

    What is the point of your post ? It offers no...

    What is the point of your post ? It offers no value to anyone seeking help here.
  22. Replies
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    17,159

    Re-posting as suggested. Many of our motor...

    Re-posting as suggested. Many of our motor drivers (combat robots) require a PWM pulse of 32Khz and some older ones use 20Khz and hence the requirement. Sometimes we run different motors on the same...
  23. Thread: Ultrasonic PWM

    by vspear
    Replies
    1
    Views
    1,929

    Ultrasonic PWM

    Urgently need approx 31KHz on any PWM pin of the Teensy 3.0 Can someone suggest exact settings for the Timers, etc to simply call it in the setup().

    Thank You in advance.
  24. Replies
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    8,552

    I just got my first 3.0 and ordered a couple...

    I just got my first 3.0 and ordered a couple more. Am in urgent need of two fixed PWM frequency settings on any two separate pins (20KHz and 32 KHz). What would be the easiest way to set it using the...
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