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Questions tagged [glcd]

Graphical/graphics LCD display - A LCD display capable of showing lines and single pictures instead of text-only displays.

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1answer
96 views

Are horizontal and vertical back porches required for digital video, and if so, why?

The necessity of vertical and horizontal front and back porches in analog video seem fairly intuitive to me, but why are they necessary for digital video at all? In this LCD module data sheet and this ...
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1answer
93 views

128x64 Graphic LCD(TG12864B V1.1) monitoring problem (driving from STM32) [closed]

I'm try to write a driver for driving 128x64 GLCD. But whatever I did, it doesn't work. I put the code below. What is wrong?. edit I can write some character but Random pixels appeared on the LCD....
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1answer
158 views

XV0 and V0 - what does it stand for?

I'm looking for suitable GLCD, so far I have found the RX12864H, however the datasheet describes a lot of voltages and I'm bit confused. While the VSS and VDD are clear to me, I have no clue what do ...
2
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1answer
187 views

Matching LCD controllers to LCD compatible panels

Over the years, I've accumulated numerous LCD panels and controller boards salvaged from TVs, Monitors, Cell Phones, digital picture frames, GPS devices and tablets. I would like to reuse the panels ...
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1answer
139 views

Why do we need sync pulses in digital (LCD driving) context?

I am studying how to drive LCD TFT display with the microcontroller (STM32F746). The manual mentions that I have to set up timings for HSYNC, VSYNC, VBP (Vertical Back Porch), VFP (Vertical Front ...
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1answer
89 views

JLX 12864G 139 ver2 GLCD interfacing with arduino

I bought this GLCD from aliexpress long time back and trying to make it work but unable to find any documentation about the same. even aliexpress that i bought from doesnt have the page anymore. the ...
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1answer
75 views

How to design a GUI using GLCD?

I have a small project that I'm working on. It has a NOKIA 5110 LCD. I want to make a nice GUI to view measurements, and also control the hardware. I've designed tow screen layouts which you can see ...
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2answers
125 views

How can I drive this LCD? [closed]

I have had this LCD lying on my shelf for the past few years and have not been able to figure out how to use it. It is an LCD from the printer Epson TX710W. I searched for a datasheet, but I couldn't ...
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1answer
751 views

Can I use an arduino as a LCD controller?

I saw this video where a person used a graphical LCD as a very rudimentary monitor for his computer using an Arduino... I was wondering whether it is possible to use an Arduino as a controller board ...
2
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2answers
286 views

Beaglebone Black LCD/TFT/display and I2C2

I am considering buying a 4D Systems I2C LCD for the BBB, e.g. a 7" touchscreen, which uses the I2C2 bus. The question is, will I be able to use other peripherals on I2C2, on a home made cape, ...
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1answer
130 views

Difference between positive and negative LCD drive

I have a positive type custom ordered LCD with 60 segments. Display type: Reflective Duty: 1/4 Bias: 1/3 Now, i want to replace the positive LCD with negative type. The LCD is presently driven ...
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2answers
303 views

Circuit guidance to output -14V from 12V supply

Good day to all potential problem solvers! I would love some assistance with a particularly tricky circuit. I have an Arduino board and a particularly elusive green/black 128x128 GLCD screen I came ...
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1answer
146 views

Nokia C100/1616 SPI TFT with ESP8266

I am making a wifi scanner with ESP8266 and to display information I am using SPI based Nokia 1616/C100 display. This time I am coding ESP8266 natively rather than using mcu + esp8266 (running at ...
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1answer
119 views

What does it mean code for TFT LCD rgb?

What does it mean code for TFT LCD rgb? i dont know ("%s") or ("\x12" "kwh") or "%4u:%02U:%02u" ?
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1answer
121 views

cheapo CCFL LCD keeps colour-drifting - what is the cause? [closed]

My display's (Phillips 231E) white point drifts continiously. Once I have created profile for it it will be fine for some time but then it will shift slightly or badly. For example: in some cases I ...
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0answers
214 views

PIC uCr 16F877A interface with glcd LM12864DDY

I'm using the CCS C Compiler to program my pic 16F877A to display results of a voltage measurement. I'm using TOPWAY's LM12864DDY. I used the functions that were available in the glcd.c file in the "...
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1answer
69 views

Interfacing with a S6B0741

I am using a LPC4300 board to interface with a graphical LCD, a S6B0741. I have been trying to get it initialized, but I am not sure if I am sending the commands the correct way. The code I have ...
2
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1answer
621 views

Nokia 1616 LCD AVR Issue

I seem to be having a weird and frustrating issue. I have a Nokia 1616 LCD to which I am displaying images stored on an SD card. Everything worked fine when I was breadboarding it but when I ...
2
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2answers
447 views

Interfacing with a graphic lcd

I am ordering a graphic lcd NHD‐12864AZ‐FL‐YBW and most of the interface code seems pretty simple. On the datasheet it has the following list of commands I don't understand what is put in the write ...
1
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1answer
318 views

Emulating greyscale on a 1-bit LCD

I have an LCD (the DOG-M 102x64, with a uc1701 controller) that I am driving (over SPI, but that's somewhat irrelevant) from an AVR (ATMega16 @ 8 MHz) - all in all, a fairly low spec'd screen with a ...
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1answer
549 views

GLCD doesn't work

I have a ts12864a-2v2 LCD and I think its controller is KS0108B. I have downloaded this lib to use it for my LCD and also my MCU is STM32F103RET6. the schematic I have used to connect LCD to MCU is ...
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1answer
450 views

Incorporate TTF file in C

I have migrated from a 16x2 alpha-numeric display to a 128x64 graphical in existing project. With that in mind, I am planning on using a larger font instead of the "easy" 5x7. How do I integrate TTF ...
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4answers
1k views

Which circuit to use to automatically turn off the backlight of a GLCD after 30s?

Have you ever seen smart phones automatically turn their screens off after a short time to save the power? I want to do it on the back light of my GLCD (ks108sed). Descriptions: Back light will be ...
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1answer
1k views

What is the difference between TFT LCD interfaces?

I am looking at driving a small TFT and have found that the driver chip supports various interface methods, however I can't see why I would choose one over another. The options are: i80 SPI VSYNC ...
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1answer
578 views

NT75451 LCD with STM32

I am using STM32F303VCT6 microcontroller for my application. My question is: Are there any libraries for the GLCD NT75451 which may help me display geometric shapes on the screen? FYI : LCD interface ...
1
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1answer
639 views

Why doesn't Graphic LCD (128x64) automatically changes line

I am using a 128x64 graphic LCD (Model: JHD12864E) for my college project. I want to print a sentence. But the problem is that it automatically increases the 'Y' value and once it reaches the value 64 ...
1
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1answer
901 views

How to connect LCD display to a potentiometer?

I am new in electronic therefore please bear with me about my explaination. I have a LCD display made by TGK model TM12864L, please see manual and diagram attached. https://dl.dropboxusercontent.com/...
2
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1answer
53 views

GLCD touchscreen interference with metal frame?

I am trying to use a 128x240 GLCD driven by t6963 and a resistive touchscreen. When touchscreen and the frame are far apart, everything goes well but when I put them together it starts sending touch ...
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2answers
442 views

What is TFT driver SSD1963 data voltage

I recently bought a TFT module driven by SSD1963 I have experience on t6963 and ks0108 and by a quick look it seems ok to make a MCU interface to ATMega128. What is confusing to me is the difference ...
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2answers
183 views

Resistive Touchscreen Stands in Midway of the ADC in standby

In a resistive touchscreen I am trying to read x-y position. The schematics is as followed. The code works fine and when I press a point, it reads correct position well but the problem is in standby ( ...
2
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2answers
685 views

TFT LCD tutorial?

I am not sure if it is a good question or not, but I want to start working on TFT LCDs. I have good experience both on T6963 and KS0108, dot matrices, but zero experience on TFTs. Can anyone give any ...
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1answer
451 views

t6963 GLCD very low contrast

I am trying to setup a 240x128 GLCD with t6963c driver (datasheet). I am familiar with ks0108 drivers but newbie in t6963. I have written a simple code with only lcd-init() that I expect to see the ...
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1answer
82 views

How to use touch screen shield for GLCD?

I know this is a very elementary question. I was wondering if it is possible to use a touch screen shield on a normal GLCD to change it into a touch-GLCD. I have seen a product which is a transparent ...
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1answer
355 views

Problem with LCD 128x240 pinout

Recently I bought a 128x240 LCD with ts6963c driver chip. The part number is TS240128D-1. I am familiar with KS0108 driver but the problem is different pinouts. I found a good manual in a book for ...
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0answers
109 views

Problem with the code of GLCD128x64

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4answers
706 views

Do graphical/pixel mapped LCDs need a screensaver?

Will displaying the same for a very long time on a graphical or pixel mapped LCD harm the display in any way? If so, what would be a maximum time to display the same, or how could I determine that ...
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0answers
1k views

Not able to get graphic LCD to work with Uno

I have an arduino uno and wanted to use the graphic LCD JHD12864E. My further plan is to port the same code to an ATmega32 or similar, but that is not the issue right now. I am using the library ...
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1answer
507 views

Code runs in simulation but not on chip

I am trying to interface JHD12864E graphic LCD with an ATmega32 controller. I simulated it in proteus using the LGM12641BS1R model. Both are KS0108 compatible so I thought it should work. I have ...
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4answers
5k views

Testing graphic LCD without code and wiring

I am using a KS0108 compatible graphic LCD (JHD12864E). I was wondering if there is a method to see if the lcd is working or not with a simple test. I tried sticking 5 volt between vcc and ground but ...
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2answers
2k views

Arduino as simple VT100 Terminal

In order to use my GLCD + Arduino as a display for LCD4Linux, using the LCD4Linux SimpleLCD Driver which sends out a subset of VT100 codes (CR and LF). I have managed to isolate the VT100 codes from ...
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1answer
1k views

Is it possible to use the Microchip Graphics library for a Single Color GLCD?

I didn't seam to see the controller for those simple GLCDs on the list of controllers for the microchip graphics library. Does it support such libraries, or do i have to create a custom controller to ...
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1answer
822 views

UC1698 based LCD driven by AVR

Ok so i've got a BTHQ128128 fstn display that i'm tryinf to drive via an ATMEGA128 AVR chip using gnu-c (avrlibc). Found some code on the interweb, but still not able to get the display to show ...
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2answers
319 views

Pre-Made Cables & Headers for (Parallel Interface) GLCD's

Is it possible to buy Pre-Made cables & headers to suit GLCD's, the model Im using has a 20-Pin interface like the model in the image below. If as I fear such a convience does not exist what do ...