Short for Liquid Crystal Display. LCDs consume little power, and exist in graphic LCDs, or segmented. The latter type is used for character and 7-segment digit display, and also in custom LCDs for consumer electronics.

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23 views

Tablet screen (digister replacement) [on hold]

probably a simple question for engineering whizzes but it's got a mere n00b stumped. Recently agreed to try to replace my Nieces tablets touchscreen after an unfortunate meeting with Thomas the tank ...
0
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2answers
23 views

Suitable FFC socket for this LCD module

I've ordered this LCD module, and I'm trying to find a suitable connector for it. It's 26 pins with pitch of 0.8mm, but as you can see, the right hand side is "sticking out" of the connector. Is this ...
-2
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0answers
45 views

Hazardous stuff inside an LCD TV [on hold]

today i took a broken LCD tv in order to extract the polarized films and the diffesers for my project. I know that the light tubes on the top and the bottom of the screen contain mercury so i was ...
3
votes
1answer
48 views

Hitachi HD44780 LCD works exactly 50% of the time

My Hitachi LCD works 50% of the time. Is it a problem is a deboucing reset button issue on the AVR? Why is this happening? Here's a video of what is happening. This does not happen if I write on the ...
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0answers
34 views

Atmega32 LCD program not working

i have recently been into atmega world after i heard it is much better than pic and it is my second tutorial about writing to LCD i wrote this program in atmel studio but it doesnt work i double ...
5
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2answers
106 views

Is my LCD TV doing some sort of dithering? [on hold]

I'm using a 32" 'LED' TV as a monitor (1920x1080 over HDMI). I've been noticing some annoying horizontal stripes where the source is displaying grey pixels. It seems that what's happening is the TV ...
0
votes
1answer
59 views

LCD shows strange behavior upon micro-controller reset

I have written a code for the 'PIC18F4550' micro-controller (20MHz xtal) which shows "Speed = xxx RPMs" on an HD44780 LCD in 4-bit mode, where the xxx is the value contained in the variable called ...
1
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0answers
48 views

Can't display on LCD with Atmega 328

I tried to display hello world on a 20x4 LCD using Atmega328. But I failed to display any character on the screen. I'm not sure where the problem is, either the initialization or the timing order. I ...
1
vote
1answer
85 views

How to fix Hitachi HD44780 16x2 LCD garbled display in 4 bit mode?

It often happens that a HD44780 16x2 LCD shows garbled characters during usage. Most help on the web advises for using snubbing techniques to prevent voltage noise such as induction spike. I've done ...
0
votes
1answer
74 views

How to communicate 'rawly' with an HD44780 compatible LCD?

I have a HD44780 compatible lcd display (QC1602A). I did a lot of research and found some helpful things, but none of then seemed to really have worked. I'm not using any lcd library (C), only the ...
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0answers
43 views

How to set the gamma?

I have a TFT 2.2 inch Display. like this: Its controller is ILI9341. I ported it to my MCU and everythings work fine. one of the most important things in using a display is Gamma. when you would ...
0
votes
1answer
44 views

isolation between lcd 20*4 lcd and tm4c123 [closed]

power suply required for my launchpad is 3.3 v and that required for lcd is 5 v. I want to isolate lcd and launchpad. What should I do? do i need to put optoisolator between each pin of lcd and ...
1
vote
1answer
56 views

How to implement a double buffer using an ARM Cortex M3

I am a total beginner, but I have been working on a project to attempt to build my own microcontroller that outputs basic 2D graphics to an LCD screen. In doing some research as to how this is ...
0
votes
1answer
39 views

LCD display connection and power supply

I found an old car DVD player, figured I might try and use the LCDs for something else, most likely with a raspberry pi. They're 4.5" displays, Prime View Model #PW045XS2. I'm thinking adding an RCA ...
2
votes
1answer
91 views

What is this thing called “LCD interface” found in MCU datasheets?

When browsing ARM MCU datasheets I often find a thing called an "LCD Controller" or "LCD Interface" and I'm wondering what it is and how it works. It's present on the LPC3130[link|datasheet] and ...
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0answers
27 views

DS2401 initialization and usage

I have never worked with OneWire before and I am now trying to make the DS2401 Serial Number work, but without luck. Of course I started by reading the datasheets for the Serial, but I did not really ...
0
votes
3answers
72 views

LCD not working!

I am using a PCI1602F-B from Powertip as an LCD and an ATmega8 to communicate with it. Connection: -PORT D of ATmega8 with data-bus of LCD -PORT B0 of ATmega8 with Rs pin -PORT B1 of ATmega8 ...
1
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0answers
27 views

auto shift on keypad press in lcd using fujitsu F2MC-16LX MB90385 Series

We are using LCD and Keypad in our MCU and I was wondering how do i initialize my LCD so that every time there is a key press the display will automatically shift right and fill up the LCD as more ...
0
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1answer
22 views

hantronix HDM24216L-2-L3ES pinout

I am looking for the pinout on a hantronix HDM24216L-2-L3ES 24x1 LCD. I found the datasheet: http://www.hantronix.com/files/data/1278557021char-comm.pdf but I cant determine what the pinout is. Can ...
-1
votes
1answer
57 views

What kind of a display should I be using? [closed]

I'm looking for a display >= 160x144 that will use as little power as possible. This (hobby project) device of mine will be portable and I am hoping to have it last for months on regular AAA ...
1
vote
1answer
72 views

Custom LCD glass with ST7066: Can it display 8x8 characters?

I'm redesigning a product that has a custom LCD glass with a rather strange organization. It uses 22 segments with 14 commons. It's a little bit like the display in the picture below: Since this is ...
0
votes
1answer
26 views

TFT LCD panel product no.FH12A-40S-0.5SH(55) (Or Psp 1001 screen) to Xbox VGA

I received a broken PlayStation Portable the other day and decided to try and use the 4.3 LCD screen in a custom Xbox 360 console. Here is the .PDF for the panel. Page 6 and 7 contain the pin-out for ...
0
votes
1answer
77 views

Can't get any output in LCD with 18F2550

I have made circuit of contact less tachometer using PIC18F2550 micro controller. when I testing my circuit I cant get any output on LCD. But the LCD is turn on. I check all the connections one by ...
2
votes
1answer
56 views

Why doesn't my LCD work?

I have an 2.8" LCD that it's controller is ILI9325. I'm trying to use it. for start off, I have written a simple program. the program is this: ...
0
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1answer
57 views

DisplayLink LCD Controller [closed]

I want a small portable monitor (7 in) that can connect to my USB drive for power and picture (DisplayLink). I've found some cheap lcd screens, such as ...
-1
votes
1answer
92 views

atmega32 is working OK but atmega32A is NOT!

I have a board which there is an LCD on it and I want to show some lines in the LCD. I have a broken-pin Atmega32 which the broken pins didn't used for LCD, I have written a simple code which just ...
2
votes
2answers
69 views

Analyzing sniffed data from pins of LCD 2*16 using Atmega32

I sniffed DB4..7 of an 2*16 LCD using the below circuit : (Atmega32.PORTA1..3 is connected to GND) As you see above I connected En pin of LCD to INT0 of Atmega32 (That is configured for Falling ...
2
votes
1answer
93 views

Using a TFT display that has no controller

I have been using LCD screens (with the controllers) for my projects for a long time. Now I thought of learning how these screens actually work, the part before they go to the controllers. Well ...
0
votes
2answers
78 views

Google has no datasheet for ACX502ALM-7 LCD/resistive touchpanel

I have an ACX502ALM-7 series LCD+touchpanel combo. Google cannot find me a datasheet for it. Can any one of you? I'd like to possibly interface it (at least the touch screen part) to an Arduino Uno. ...
0
votes
1answer
74 views

LCD Display connection

How to connect this http://docdroid.net/ngqg LCD Display to microcontroller? It is ILI9341 based. Is it possible to connect only SPI/LED pins and leave every other input pin floating or I need to ...
1
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2answers
195 views

Arduino LCD Display drawing image issue

I am playing with 3,5" (400x240 chinese unknown 8-bit controller driven) TFT display which is placed into Arduino Mega 2560 R3 board. My final goal is taking .raw data from SD card and drawing it on ...
0
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1answer
41 views

How to Monitoring the lines between an Atmega8 and a LCD using Atmega32

I have a device that it use an Atmega8 to send some data to a 2*8 character LCD. the LCD has 8 pins and the pins are as below from left to right: DB7 | DB6 | DB5 | DB4 | En(Clock) | RS | VDD | VFF I ...
0
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0answers
28 views

Need Some Help Using a GLCD on EasyAVRv7

I am trying to use a GLCD, a WDG0151-TMI-V#N00 on my EasyAVRv7 board and I realized that I might need some help. The MPU I have is an ATmega32. Problem is, nothing works. For example I can't even tell ...
0
votes
2answers
65 views

Does anybody know where I can find datasheet of this 2*8 LCD

You can see a LCD wired on a board above. based on the back of its board, it has 8 pin and its seventh pin and eighth pin is connected to VCC and GND. I search in internet for datasheet of this ...
0
votes
1answer
59 views

Large round (20 or 24 inch) LED or OLED display? [closed]

Is their any such thing as a 20 or 24 inch round LED or OLED display? I've searched and searched to no avail and I am wondering is that even possible?
2
votes
1answer
46 views

Puzzlement on Evaluating the Datasheets of a GLCD

I have decided to use an LCD display for my project. In order to learn how to use one, I have consulted its and its drivers' datasheets. Here are the links for them: Link for the LCD display's ...
0
votes
2answers
80 views

LCD 2x16 I2C ST7032i

I write a code using Atmel ASF for SAM devices for LCD 2x16 with ST7032i controller. I've encounter an issue about reading and specifically "busy flag reading". How can i perform read instruction to ...
0
votes
2answers
97 views

Getting bottom row of black boxes with LCD Display on atmega32 MCU?

I need some help with this, I am a completely new to programing MCU's but I am trying my best to get this working and I could relay use some help. I am using the Sparkfun Basic 16x2 Character LCD ...
0
votes
1answer
43 views

LCD interface to Controller

I am using 3.2' TFT LCD with touch pad. LCD has pins RD and WR. What is RD and WR pin? Is WR for RD also ( for both write as well as read )? Where to connect RD pin of LCD? Please see attached ...
0
votes
1answer
68 views

LED Backlight driver output current

Our LCD has 10 series white LEDs for backlight with total Vf of 15V and current of 40ma. The backlight circuit is designed with SC4509. As per the datasheet its recommended output voltage is 20V and ...
0
votes
1answer
71 views

Problem initializing 4-bit mode LCD(DEM 20486 SBH-PW-N)

I've got an ATMEGA16 with a LCD display DEM 20486 SBH-PW-N (datasheet) connected to port C like so C0 - RS C1 - RW C2 - E C3 - not Set C4 - D4 C5 - D5 C6 - D6 C7 - D7 D0-D3 are grounded I ...
0
votes
2answers
132 views

HD44780 in 4bit mode connected to only ONE PORT on PIC

i am new to PIC programming. I am using MPLAB X + XC8 compiler. I have on a breadboard an PIC18F4550 connected to a HD44780 compatible LCD. Digging online i found out a routine to interface the PIC ...
1
vote
1answer
123 views

How can I solder LCD Pins when solder does not “stick”?

I have a 16 * 2 LCD Display, with 16 input pins. However while I am soldering the pins it it does not stick or "take". How can I fix this? Is there any other metal for soldering a display ?
1
vote
1answer
140 views

HDMI to MIPI conversion [closed]

I want to use a 1080p touch panel with an ODROID-XU3 Lite but unfortunately it seems that the ODROID only supports HDMI output and that 1080p panels are only really available with a MIPI interface. I ...
0
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0answers
83 views

Identifying unusual LCD pinout of salavaged HP printer

I salvaged the following lcd from a relatively new HP printer, but the pinout seems a bit odd, any ideas how could I set up the screen?
0
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0answers
201 views

SPI LCD Screen on OpenWrt based hardware using Atheros AR9331

I'd like to connect a graphics lcd 240x64px to my OpenWrt based hardware, which is based on Atheros AR9331 MIPS architecture. The development board I'm using has SPI outputs... I've been using the ...
0
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0answers
47 views

4-lamp-inverter with LCDs designed for 1 or 2 lamps

can i use a 4-lamp-inverter with LCDs designed for 1 or 2 lamps? The unused lamp connectors could be closed with resistors as suggested here. Or, is it safer to use an 1-lamp-inverter with an LCD ...
1
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0answers
44 views

Can't drive adafruit display with Arduino DUE

I'm currently trying to write a library for the Adafruit ST7565 graphic display. (see links below) The current one is entirely AVR specific and the code is generally pretty unreadable given the ...
-1
votes
1answer
76 views

Redoing the factory calibration of LCD panels?

Is it possible to rewrite factory calibration of LCD panels? I am not talking about buying a Spyder 4 or X-Rite calibration device and generating a software lookup table at the OS, or graphics card ...
2
votes
1answer
93 views

LCD connector repair [closed]

Does any one know if it is o.k to run a soldering iron over the connector with the fine black traces on in the photograph attached(or below I am new to pic posting :D)? I have an office kitted out ...