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Home Product Categories Monochrome LCD-00710
Graphic LCD 128x64 STN LED Backlight
sku: LCD-00710
Description: This is a framed graphical LCD 64x128 with LED backlight. This unit is a very clear STN type LCD with a simple command interface. This new module includes the negative voltage circuitry on board!
Utilizes the extremely common KS0108B parallel interface chipset (datasheet). Interface code is freely available. Includes LED Backlight.
Dimensions:
- Overall: 75x52.7mm
- Viewable area: 55.01x27.49mm
- GDM12864H.pdf
- App Note from Kronos Robotics
- Utility Meter App Note
- Serial Graphic LCD App Note
- 'Pong Clock' App Note
Pricing
images are 
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Comments 57 comments
Since there doesn’t seem to be any AVR code for this linked, here are my notes and code for using this module:
http://jormungand.net/dev/avrlcd/
In order for this code to work right, you need to fix the command that turns the LCD on. In lcd.c, on line 35, “0xE3” should be “0x3E”.
Thanks for sharing your library. I ported it to the XMEGA style and it worked except that I need to add a reset in lcd_init(). I initialized the control port with RESET low, and then I promptly set it high.
The current version of this graphic display (GDM12864H) has a unique feature that I have not seen in any other 128x64 graphic LCD. Its pixels (and pitch) are square (0.39x0.39mm) so your circles appear as circles — no more ellipses!!!
Does anyone have any code/examples on how to make this work with a msp430??
I would also like to see some!
I haven’t found anything for the msp430 yet… a simple example of how to put a mere pixel on a specific point in the screen would be awesome!!
I ported the Arduino’s ks0108 library to the MSP430 and have it working. If you’re still interested in the code feel free to ask me. At some time I should put it up for public consumption but it’s not ready yet. With that said I’m still willing to share what I have if people are interested.
Hey do you still have the working code for the MSP 430. I have spent 3 days trying to make it work and I can’t. If you could please post it.
Thanks
astromme – I am currently working on a project with this serial graphic display and I am interested in using the MSP430 could I get a copy of the adapted Arduino ks0108 library? Thank you, this would be greatly appreciated.
Wonderful GLCD, I did beautiful clock using this GLCD
http://sites.google.com/site/abdulla877/about/pic-tutorials/glcd-clock
Abdullah
Hi,
Thanks for posting. Please explain why you have 2K ohm connected to the V0 and VEE pins? This LCD has built-in DC converter to drive the LCD already?
Thanks!
I believe he choose a 2k instead of a pot to adjust the contrast. I’d keep a pot, perhaps a 10K on there to adjust it if you please.
Someone noted above that the voltage needs to be fairly low (~-4V) to see the darkness of the pixels. If you hook a pot up, be sure to wipe it to both extremes to see if you can atleast see a big black box when the LCD has power, then you know atleast your contrast works and you’re getting power!
How bright is this LCD? Can it be used outside?
I intended to drive this LCD with an ATmega168, which now appears to be an astonishingly bad idea if the uC has only 1K RAM and you need that to drive the LCD. True? Or am I missing something completely obvious to the non-novice? It looks like I need a separate uC (like the DiosPro) to drive the LCD, with the 168 uC controlling the DiosPro via the UART? Happy to take advice….
You don’t have to devote any ATmega168 RAM to the LCD. This component has its own video RAM, one bit per pixel, 512 bytes total. I think you have to write whole bytes at a time (8 pixels), and it doesn’t know how to draw a letter “A” by itself, but the App Note from Kronos Robotics says they have a higher-level Dios library to deal with such operations.
I have a tiny oscilloscope I bought from another vendor, it looks like this part is identical to the screen they use.
does anyone have the code for this to use with arduino???????
for those interested, there is a link in the Arduino playground for controlling KS0108 graphic displays!
http://www.arduino.cc/playground/Code/GLCDks0108
Additionally, a tremendous amount of useful information pertaining to that library can be found in the Arduino forum discussion:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210427907
Any idea when this will not be on backorder?
I purchased one of these and hooked it up to my Arduino Mega according to this page:
I grabbed the software and loaded it. The backlight works and at first I saw a few lines on the display itself (these faded). When I ran the software from that web page, nothing came out on the display. I played with the contrast potentiometer a little, but I still see nothing. The program is running (I added some Serial output for debugging).
Is it possible that I burned out the controller? Or… is it possible I just got a bad one? Does anyone have experience with these that might be helpful?
Thanks!
There is a very good chance you just haven’t done something right. I had some trouble getting it to work as well, but it was because the code wasn’t doing the right thing. I design and develop my own boards so I have no experience with the Arduino, but if you have a more specific question I can attempt to help you.
Vo can be connected anywhere from -5V to +5V. As long as you didn’t connect it to a voltage outside of that range, it should still work.
I forgot to mention that the LCD voltage, in my experience, should be around -4V for the display to be readable. Close to -5V will turn all of the pixels fully on and above -3V they will be totally transparent. Other units may behave differently but this is how mine works.
Thanks for the info. I was quite careful about the voltages being supplied to the LCD, but I’ll check again (and verify the contrast voltage).
I have tried Csloser’s AVR code, but all I get is one horizontal line, the top most specifically to write. I have hooked the output of my DB0 – DB7 to an oscilloscope to confirm I am writing. I have also confirmed this corresponds to my CS1/CS2 signal. has anyone else had this issue?
On the page Csloser links to, he recommends a pull down resistor. Could anyone comment on the importance of this? Could this be the cause of my one line LCD?
Thanks in advance for ANY help.
I’m going to have to throw my hat into this with GeodeLX and InkAnkUnk. I can’t get so much as a pixel out of this thing, using Csloser’s AVR code and having checked and rechecked wiring N times. Writing my own library from scratch from the datasheet also results in absolutely nothing. At least the backlight and contrast adjustment via pot works.
I’ve done exactly as csloser did in his tutorial, but i am also having difficulties getting it to work properly. I’m running it on a ATmega168.
While the microcontroller was running, i had to take the display off my test board, because (stupid as i was) i mounted the V0 pot-meter under it. When i connected it back it was working!
So now i can get it to work, but only if i pick it out and put it back in a couple of times, or cycle the power… I have no clue why it is like this, but maybe you other guys can do the same, and see if it helps.
PS: If i press the reset button which i have connected to the LCD while it’s working, it stops working again, and i have to cycle the power… :(
I tried this method, without success. Obvious resets and power cycles do nothing, as well.
I just ordered the damn usb logic analyzer from SFE, so I should be able to debug what the hell is going on. I will post back here if I come up with anything. Hopefully we are all having the same problem. :)
Ok, so I’ve had my analyzer for a day now, and it helped me figure out that PORTA on my MCU is a pile of crap. The LCD seems fine after all.
I can’t recommend this analyzer highly enough, after this experience:
http://www.sparkfun.com/commerce/product_info.php?products_id=8938
This product has very good app note thanks Sparkfun
So, stupid question, the LCD screen says it needs 9V to work. Is that supplied by the circuits on the board, or do you need to create a step-up dc converter to change 5V into 9V?
Any idea when this will be back in stock?
I wired mine up exactly how it is shown in the pong clock app note. when I try to give it power it starts to draw more then one amp with my power supply at less then 3v. I’ve checked my wires a few times to make sure they match the schematic on the app note.
Is my LCD dead?
Make sure that you have a 100 to 330 ohm resister in series with the LCD backlight. Some of the documentation is not clear on this, but the resister must be there or the LED backlight will act like a dead short as soon as the voltage rises above the LED forward bias – usually about 2.0V.
Can the LCD be removed from the PCB? I’d like to use this as a very low res projector LCD with a higher power backlight and lens assy.
I don’t believe ones like this will work in that manner, it won’t be clear enough.
Bought without thinking, I need power from 0ne Li-ion battery. What’s the maximum current this unit takes and is there a simple ways of operating from 3v3 (besides DC-DC converter)?
It looks like it can draw a max of 420mA.
That’s a dent in my battery life then
If you wanna see a fast project with this LCD and an Arduino go here:
Photos:
http://saki-tech.tumblr.com/post/509580787/this-is-my-christmas-project-for-my-little
Video:
http://saki-tech.tumblr.com/post/509605082/this-is-the-video-of-my-s-m-s-project-in-action
And electric scheme:
http://saki-tech.tumblr.com/post/513311661/electric-scheme-of-s-m-s-project
Enjoy it! ;)
Has anyone used this LCD with an mBed? If so, could you post some sample code?
This is exactly what I have been looking for to hook up to a Ybox (I just want a neat little gadget to hook up my workshop, nothing too big). But the question is, (and I know this is going to sound noobish, because I am, and have just literally dived into the world of electronics with a lot of information and knowledge already but less than a month’s experience) would it be compatible?
hey guys: does anyone have code to use this LCD with an MSP430……
I have written a simple tutorial to get this LCD working with Arduino if anyone needs help – http://wp.me/pQmjR-1fR
I have simple text driver for PIC.
get the source code from
http://joekwuen.blogspot.com/2011/01/project-pic-lcd-module.html
lol just sth cool you can do with a lcd and an arcade-style pushbutton :D Running Mario http://joekwuen.blogspot.com/2011/01/project-pic-button-mashing-game.html?spref=fb
Any idea when these will be back in stock? I accidentally blew my last one up (overvoltage, poked the jumper in the wrong rail on the protoboard!) and now I’m getting behind on the project!
I second that! There hasn’t been any in stock since the 25th of feb!
Oops! just restocked minutes later!
Hi,
Datasheet mentions (p6) that KS0108B “Input High Voltage” is 2.0 to Vdd (V) for pins CS1B, CS2B, CS3, E, R/W, RS, DB0~DB7.
My LCD is powered by 5V supply, I would like use a PIC@ 3.3V to drive it.
Does someone experienced to drive this LCD (GDM12864H) with 3.3V signals ?
Thanks :)
I have successfully used an AVR @ 3.3V to control this LCD. I would agree that according to the datasheet this can be expected to work.
has any one used this with a picaxe
Any idea when these will be back in stock?
I second this. I could really use one in the next week or so.
I’ll take 1 too!
Hi all,
I finished from building a portable oscilloscope by using this wonderful GLCD, check it hear:
http://www.pic-tronics.com/PIC-Based-Oscilloscope.php
regards
I recommend using the Graphic LCD Serial Backpack and with a firmware upgrade the perfomance is pretty sweet, thanks to SummoningDark’s firmware.
For information on how to upgrade the firmware look at my post at the Arduino forum
Just can’t make mine work. Just received it a while ago and have tried all the suggestions here and nothing. It just starts with all the pixels black and remains like that.