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

Search:

Type: Posts; User: ChrisHoward

Search: Search took 0.00 seconds.

  1. I struggled for awhile trying to get a working...

    I struggled for awhile trying to get a working pin map for using all of the components: teensy 4.0, stacked audio shield, ILI9341, and MQS. I had to set the project aside. But now I hope to take...
  2. Another podcast you might find interesting This...

    Another podcast you might find interesting This Week In Virology http://www.microbe.tv/twiv/
  3. I would like to pursue the idea of mixing 60 kHz...

    I would like to pursue the idea of mixing 60 kHz LO with the incoming signal to produce phase on DC for BPSK detection. But I'm puzzled how to detect the DC. I hear the DAC audio library output...
  4. Here is my code doing the AM decoding on WWVB ...

    Here is my code doing the AM decoding on WWVB

    https://github.com/chris-elfpen/Teensy4WWVBsdr
  5. I feel like I'm on the edge of stupidity, looking...

    I feel like I'm on the edge of stupidity, looking over the fence into the land of understanding... but I can't seem to get there from here!

    I want to demodulate the phase encoded information on...
  6. No, once I got a working antenna I focused more...

    No, once I got a working antenna I focused more on the software side.
    I did do a bit of online research on shielded loop antennas. But I decided to try the direct approach with the parts...
  7. Antenna note: I had some old wire from a CRT...

    Antenna note: I had some old wire from a CRT type television flyback transformer. I used a cardboard box approximately 2" by 14" by 12" and wrapped the wire around the perimeter of the box, about...
  8. My project was to convert this DCF77 receiver to...

    My project was to convert this DCF77 receiver to WWVB at 60 kHz.
    I have that working now based on the amplitude modulation.

    The conversion really didn't touch the SDR components except to change...
  9. First Rule of Programming: It is probably your...

    First Rule of Programming: It is probably your own fault.

    I was writing off the end of my sample array.
    Once I sorted that out everything was good with the display.
    IntervalTimer is exonerated.
  10. Another issue: I wanted to try some cross...

    Another issue: I wanted to try some cross correlation to try to detect weaker signal. I added an IntervalTimer to call my very small interrupt routine every 10ms so I could sample the current...
  11. Thanks! I have gotten the code to compile and...

    Thanks!
    I have gotten the code to compile and almost run on the Teensy 4.0. I had to comment out displayDate function.
    In runtime it is going to a line which does a sprintf calling function...
  12. Hi, I would like to implement this with the new...

    Hi, I would like to implement this with the new Teensy 4.0.
    I have downloaded the source.
    My first attempts to compile are failing on I2S0_MCR and I2S_MCR_DUF being undefined.

    The clues seem to...
  13. Replies
    3
    Views
    356

    Putting voltage on VBat(+)/Gnd(-) did the trick!

    Putting voltage on VBat(+)/Gnd(-) did the trick!
  14. Replies
    3
    Views
    356

    Damaged my Teensy 4.0 :-(

    Hi,

    I think this is my own fault.

    I was trying to go cheap, didn't have any long-tailed female pin sockets.
    So I used some stiff copper wire for pins.
    But that lead to hard insertion force...
Results 1 to 14 of 14