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  1. Replies
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    Re: Cannot drive I2C Oled :(

    I bought a OLED display on ebay saying it had a SSD1306 chip, trying running some code from here and I got a display full of noise

    Turns out it has SH1106 driver

    I modified the code here to...
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    Sticky: Re: Bits, Bytes Words and Arrays

    Thanks Henik

    solved that one
  3. Replies
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    Sticky: Re: Bits, Bytes Words and Arrays

    awww that was an autocorrect on here, not in my code

    changed litled to 'lit' still no change,

    I've changed my code now to address each led using X,Y,Z
    and it is working ok


    xl = 7
    zl = 7
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    Sticky: Re: Bits, Bytes Words and Arrays

    ok... I've built an 8x8x8 LED cube using 18F452, I have encountered a problem with my array

    each of the 512 leds as 1 bit assigned to it from leddata array

    0 = bottom corner
    511 = the top...
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    Re: Vfd vaf1613-12lsr2

    Thanks for the reply

    I've tried playing around with the delay times, different shiftout modes today
    still nothing

    the pic i'm using is 16F877 @ 20MHz
    PORT C all set to O/P - I Believe all of...
  6. Replies
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    Vfd vaf1613-12lsr2

    Good Morning

    Have bought a VFD on ebay - 16 character starburst (removed from a fruit machine)

    Ive not had any luck with it so far....

    Has anyone had any experience with these displays and...
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    128x64 GLCD ST7920 Example code

    Hi

    I bought 1 of these displays cheap on ebay, it uses ST7920 driver IC

    I couldn't find any picbasicpro example code for this display so I have come up with this example code to draw basic...
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    Re: 8x8 LED Matrix - Car / Boat Game (16F872)

    when I 1st came up with this I had some ULN2004's at home, and wasn't aware of the ULN2803 existing

    both ULN2004's can be swopped for 1 ULN2803 which will work the same

    cheers

    Dave
  9. Replies
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    Re: Scrolling thermo

    I use 4k7 pullup resistors on the I2C bus, as i read somewhere that its a bit fussy with 10K....dont know how true this is
  10. Replies
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    Re: Scrolling thermo

    Im not sure you can use the I2C pins to also connect to your leds, as from my experience the bus can be quite fussy
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    Re: 8x8 Scrolling LED display (Simple example)

    See above post, this is the HEX file for it.

    couldnt add a file with .hex extention so changed it to .txt
    just remove .txt extention
  12. Replies
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    Re: 8x8 Scrolling LED display (Simple example)

    Hi all,
    This update now scrolls temperature in degrees C & F,
    with indication arrow to show increase or decrease in temperature
    and scrolls 'wellyb00t' at every few minutes.
    Works with PBP...
  13. Replies
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    Re: Scrolling thermo

    sorry, just saw your private message....looks like you got it going!

    nice one!
  14. Replies
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    Re: 8x8 Scrolling LED display (Simple example)

    ULN2803 is an 8 channel transistor array (18pin package), and the ULN2004 is a 7 channel transistor array (16pin package)

    The software remains the same, with the hardware you can lower the...
  15. Replies
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    Your video IR remote

    Just saw your video...looks good, any chance of seeing your code for reading the remote control?
  16. Replies
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    Re: 8x8 Scrolling LED display (Simple example)

    Above was just a cut and paste from a previous project that scrolled different infomation, I had stored the entire alphabet in the eeprom and just read the charactors i needed as required.

    You...
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    Re: 8x8 Scrolling LED display (Simple example)

    hello this may help, I have eeprom values for displaying characters this should fit on pic's with larger eeprom storage such as a 16f877
    the code snippet reads the eeprom characters into the leddata...
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    5x5x5 LED Cube example

    hi

    I had a go at building a 5x5x5 RED LED cube:

    http://www.youtube.com/watch?v=QaMThTQKet8

    PBP code, Hex file, pictures here:

    http://www.filefactory.com/file/b51f1da/n/5x5x5_LED_CUBE.rar
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    Have uploaded a updated version which has a...

    Have uploaded a updated version which has a indication arrow displaying an increase or decrease in temperature.

    HEX file can be found here:

    http://www.filefactory.com/f/df8a94fb9e2fab81/
    ...
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    Very impressive..thanks for sharing

    Very impressive..thanks for sharing
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    In the code (post 1) change this line: address...

    In the code (post 1) change this line:

    address = %10101111 'pwm 16/16

    bits 0,1,2,3 control brightness
    the above line is for max brightness

    address = %10100000 'pwm 1/16 min brightness...
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    I know this is an old tread, but have been...

    I know this is an old tread, but have been experimenting with a old Nokia 6210 -- DLR3 (RS232) Cable -- MAX232 -- 16F877 @ 20Mhz

    I have connected DTR/RTS lines, Pin 7 & 4 to the spare o/p on my...
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    Im using PicBasic Pro + MPLAB IDE

    Im using PicBasic Pro + MPLAB IDE
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    krish69 I would connect to a DS1307 Real time...

    krish69

    I would connect to a DS1307 Real time clock IC, add a couple of buttons then you could modifiy the code to read/write to the DS1307 and convert the digits to be displayed.

    search around...
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    hi the only reason i used 2004's is due to me...

    hi

    the only reason i used 2004's is due to me having loads of these floating around, when i bought them i wasnt aware of a 8 channel device.

    cant see any reason you cant use a 2803
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