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  1. Replies
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    Re: max7219 4x 8x8 panels spi

    thats glcd mode you need tft mode
  2. Re: Another attempt for I2C eeprom, this time - 25C256.

    don't think you looked too hard

    9172
  3. Replies
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    Re: max7219 4x 8x8 panels spi

    http://www.picbasic.co.uk/forum/showthread.php?t=24452&p=147955#post147955

    9162
  4. Re: Another attempt for I2C eeprom, this time - 25C256.

    make an icon and assign admin to it , not a problem. running in compatibility mode can help if it wont save stuff w10 is ok without it



    glcd mode is data by column, tft mode is data by row ,...
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    Re: Heart rate sensor MAX30102

    tidied up a bit and swaped to using ir data [still in mode 3 for now]



    '****************************************************************'* Name : MAX30102 FOR PIC 18 DEMO ...
  6. Replies
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    Re: max7219 4x 8x8 panels spi

    0xE=0b00001110, 0x10=0b00010000


    and all these makes 80E

    7 high bits | 7 low bits
    0x10<<7 | 0x0e &0x7f = 0x80e
    0b000100000000000 | ...
  7. Replies
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    Re: max7219 4x 8x8 panels spi

    uses half the amount of flash memory when using 7bit numbers [pic16 flash is 14 bits wide] so you need to pack it.
    it takes very little time for the pic to unpack so there is no real penalty for a...
  8. Replies
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    Re: Heart rate sensor MAX30102

    if you are using excel then its easier to import dec rather than hex, i changed to dec
  9. Replies
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    Re: max7219 4x 8x8 panels spi

    Since I have on hand only 16F1827, I modified the code for the PortC pins but as expected does not work. Modifications in red.

    default sdo for that chip is rb2, for mxdi var porta.6 ​you...
  10. Replies
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    Re: Heart rate sensor MAX30102

    this kind of defines the problem

    9155

    peaks are easy to see, my 32 sample search yields these peaks its not easy
    sample
    5
    51
    95
    98
  11. Replies
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    Re: Heart rate sensor MAX30102

    i cleaned the screen with metho it had a spec of gunge in the wrong spot now restored. mine will not run for long at 5v 3-4 minutes then the readings are crap, jumper made nil difference. i notice...
  12. Replies
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    Re: Heart rate sensor MAX30102

    interesting mine has no jumper fitted, its not dead just gives random results , temp works ok still
    led still comes on
    i will solder the jumper and try again
  13. Replies
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    Re: Heart rate sensor MAX30102

    my module was clearly marked as 3.3v its the one with slots in the board to tie it on your finger
    the code has little if any effect on the graphical result. the result depends on your finger and...
  14. Re: Another attempt for I2C eeprom, this time - 25C256.

    Address var byte
    Address = 160
  15. Re: Another attempt for I2C eeprom, this time - 25C256.

    it a constant , pbp constants are 16 bits , i2c address are 8 bit
    use your logic analyzer
  16. Replies
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    Re: Heart rate sensor MAX30102

    well my sensor was not 5v tolerant its now a random number generator , in the bin
    i give up
  17. Replies
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    Re: Heart rate sensor MAX30102

    the filter is not really the issue, its the variability of the data that is problematical, every 128 sample is subtly different.
    light leakage, finger pressure and position and even finger...
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    Re: Heart rate sensor MAX30102

    i have tried many variations , the added aggressiveness of the filter is an attempt to remove the unwanted "little" peaks
    what looks like a nice picture of on a graph does not mean peak detection is...
  19. Re: Another attempt for I2C eeprom, this time - 25C256.

    you need to do it properly

    9152
  20. Replies
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    Re: Heart rate sensor MAX30102

    9151

    try as i might i cannot detect the relevant peaks reliably




    '****************************************************************'* Name : MAX30102 FOR PIC 18 DEMO ...
  21. Replies
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    Re: Heart rate sensor MAX30102

    now have low pass filtering on pic
    9147
    73 rpm tonight
  22. Replies
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    Re: Heart rate sensor MAX30102

    you are trying to create a problem that does not exist there is no such thing as write address or read address in pbp there is only the address
    a pbp i2c address is the 7bit manufacturer's address...
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    Re: Heart rate sensor MAX30102

    in pbp constants are 16 bit, they are fine in i2c when a 16 bit value is appropriate and the endianness matches
    if you use a var there is never any doubt, you get what you asked for but the...
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    Re: Heart rate sensor MAX30102

    Low pass filter in excel

    9143

    makes peak detection look possible



    '****************************************************************'* Name : MAX30102 FOR PIC 18 DEMO ...
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    Re: Heart rate sensor MAX30102

    its alive i think
    9142
    gives me a 63 rpm
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