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Mini graphic LCD 128x64 for $5.99 + ($3.99 shipping) — Parallax Forums

Mini graphic LCD 128x64 for $5.99 + ($3.99 shipping)

electrosyselectrosys Posts: 212
edited 2010-06-17 00:28 in General Discussion
Hello Forum,

Here is·the 128x64 Mini graphic LCD, that I have ordered·a few days ago.
The contorller ICs are the same as·his biger brother has (KS0107-KS0108)
I think that is a very fine price and I·hope the·quality is fine·too.
I·would·post about the quality,·when I·got the LCD module.
12729599081.jpg12729599080.jpg
·

Comments

  • Dr_AculaDr_Acula Posts: 5,484
    edited 2010-05-18 14:32
    Run text on that (7x5 = 8x6 with one space between characters) and at that price, you may well have found the cheapest display around in terms of cents per character. Hmm - tempting to change over from my 'standard' 20x4 text LCD displays...

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    www.smarthome.viviti.com/propeller
  • mikedivmikediv Posts: 825
    edited 2010-05-18 23:22
    Guys I just bought 2 of them do you think they will interface the same as the 4X20 Parallel ? I have gotten one to work with the basic stamp but I would like to use one of these with the DR_A board what do you think DR???
  • UnknownUnknown
    edited 2010-05-19 00:07
    I found their real internet store so I don't have to deal with Ebay. Their site is slow but they have a lot of cheap products that are hard to match.

    http://www.satistronics.com/./
  • Dr_AculaDr_Acula Posts: 5,484
    edited 2010-05-19 05:21
    It will be different code to the 20x4. I just rewrote the 20x4 code in sbasic from scratch - slow but it works. Writing screen drivers can be fun. But @mikediv, no I haven't written one for this display. More pins too. The 20x4 (and 16x2, 20x2, indeed most of those displays) are all 16 pin and use a 'nibble' mode where you can drive them using only 6 lines. I'm not sure the minimum number of lines you need to drive these displays.

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    www.smarthome.viviti.com/propeller
  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2010-05-19 07:12
    You will need all the lines basically with the KS0108 controllers and that includes 2 chip selects so there are 14 I/O connections altogether.

    B0-DB7: Data Pins
    CS1 – CS2: Chip Select
    RST: Reset GLCD
    E: Enable
    R/W: Read-Write Selection
    RS: Register Select

    If you want a 128x64 graphic LCD that only uses 2 I/O then I will be making them available at a very good price very soon. I am still in the throes of setting up my website to handle shopping carts and PayPal etc.

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    *Peter*
  • Dr_AculaDr_Acula Posts: 5,484
    edited 2010-05-19 13:43
    14 lines? Well I guess one could add another latch to the board to give 16 lines. I just finished rewriting the 20x4 LCD code in C, and I know the picaxe people have done the 128x64 in Basic. I never thought these graphic displays would come down to such reasonable prices!

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    www.smarthome.viviti.com/propeller
  • mikedivmikediv Posts: 825
    edited 2010-06-15 19:13
    Guys did anyone get anywhere with interfacing these? I tried to use a serial backpack I built for a 4x20 but I am just not getting to pirnt on the screen the serial board is working fine I connected it to another lcd display with the same chipset
    but no go on these???
    ·
  • electrosyselectrosys Posts: 212
    edited 2010-06-15 21:23
    The serial adapter for 20x4 character LCD with HD44780 controller will not work at 128x64 graphic LCD with KS0108 controller, you need to have another kind of backpack, Like this one:
    Serial graphic 128x64 controller-in two versions,serial UART(VT100) and I2C
    bv4511-2_control_board90_medium.jpg
    I have got the serial UART(VT100) but I have not try it yet.There is another serial backpach for 128x64 graphic LCD at Sparkfun where you could also download:
    source code, schematic, datasheet and make one your self, you need only one ATmega168 chip.
    Sparkfun,graphic backpack: http://www.sparkfun.com/commerce/product_info.php?products_id=9352
  • mikedivmikediv Posts: 825
    edited 2010-06-16 18:37
    electrosys I don't know if you are interested but I got mine to work with Rayman's driver code for the huge 128X64 driver he posted I am sure you are worlds ahead of me I am just hobby guy but I would be happy to share what I have it you are interested ,, the interface is for the prop beside the reset circuit 1 resistor and one 2.2 cap and on reset switch I did not use anything else I was goign to use 1K resistors for the line to the display to prop but its working just fine without them
    the highest voltage on the pins has been 3.9 so I guess to be safe you can do it ..
  • electrosyselectrosys Posts: 212
    edited 2010-06-17 00:28
    mikedive, yes I am interested and I would be very happy. Would you please write the links, and some photo of your works, if you could.

    PS. I am also a hobby guy like you, and I'm Not a worlds ahead of you, maybe the other way ;- )

    Regards
    R.D

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