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  • bicycleguy's Avatar
    06-02-2021, 09:07 PM
    If you have the Vdd of the sensors wired to the Teensy 3.3Vpin then you shouldn't use the 4.7k pullup. That is only for the 'parasitic' power mode which also requires a FET if more than 1 sensor on bus.
    4 replies | 217 view(s)
  • bicycleguy's Avatar
    05-21-2021, 12:37 AM
    Got closer to finding issue at #45. Was not SD.h but narrowed down to a function flexRamInfo2() that I got from somewhere. #if defined(ARDUINO_TEENSY40) static const unsigned DTCM_START = 0x20000000UL; static...
    86 replies | 7305 view(s)
  • bicycleguy's Avatar
    05-20-2021, 07:34 PM
    Having a new issue with 1.8.15 w beta9 on Teensy 4.0. Seems like all programs that use SD.h cause the serial monitor to go away along with Teensy freeze. Tried about 5 examples that run on 1.8.13 beta 7. These are...
    86 replies | 7305 view(s)
  • bicycleguy's Avatar
    05-20-2021, 05:26 PM
    No, also interestingly copying for this reply a select all misses the last character but all text except the return is actually in copy buffer: first line ... yes macOS 10.15.7
    86 replies | 7305 view(s)
  • bicycleguy's Avatar
    05-18-2021, 08:48 PM
    My previously buggy code https://forum.pjrc.com/threads/66869-T4-0-ILI9341_t3-DemoSauce-WavFilePlayer-mashup-causes-crashes is still buggy, maybe less so. The graphics may have a little less streaking going on. Sound...
    86 replies | 7305 view(s)
  • bicycleguy's Avatar
    05-18-2021, 08:19 PM
    macOS 10.15.7 Installed and ran normally. No issues like @ryanrs. Wonder which version he installed? Will try some of my buggy code that's had issues in past.
    86 replies | 7305 view(s)
  • bicycleguy's Avatar
    05-14-2021, 11:27 PM
    I've had great luck with this switcher: https://www.digikey.com/en/products/detail/recom-power/R-78E5-0-0-5/2834904 $2.92 + 3 tiny caps and an inductor. I'm using on a portable device so efficiency of %90 is great...
    38 replies | 1672 view(s)
  • bicycleguy's Avatar
    05-09-2021, 08:54 PM
    Just ran again with the display_FFT(xxx) lines commented out and got the same number 45 for the gfft(4096) and a even higher 353 for the audio library fft. Just realized I posted the wrong graph. The graph shows the...
    9 replies | 1116 view(s)
  • bicycleguy's Avatar
    05-09-2021, 08:31 PM
    The gfft are your AudioAnalyzeFFT objects with the size appended. Added globals and a few additions to the main loop: int fft_count; bool is_gfft=true; void loop(void) { if (millis() & 0x1000){ //...
    9 replies | 1116 view(s)
  • bicycleguy's Avatar
    05-09-2021, 06:18 PM
    Mark, nice work, thanks I added to your code a little and messaged to the 320 by 240 display Paul sells. I'm trying to understand why the gfft's/second seem to top out at 150MHz cpu while the fft/second keep going...
    9 replies | 1116 view(s)
  • bicycleguy's Avatar
    05-07-2021, 06:06 AM
    thanks defragster Tried messing with two 3.6s. Then both have the issue! then For some reason loading the example 'AnalogReadSerial.ino' and switching between type serial and MTP serial and trying Teensy ports and...
    547 replies | 42421 view(s)
  • bicycleguy's Avatar
    05-07-2021, 04:36 AM
    Since I played with this and setting type 'USB MTP...' on my T3.6 now whenever I plug the T3.6 into my mac the photo application opens. Not sure how to break the association on the mac. If I change the type to 'No...
    547 replies | 42421 view(s)
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Issue with DS18B20 temp sensor(s) and Teensy 3.6 06-02-2021 09:07 PM
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12-11-2015