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Hello, Is possible to add CCFL light or LED backlight to a 6 digit/7 segment lcd display which has no backligt from the beginning? I have seen some article about doing that many years ago (could not find now...) by removing the reflective shield layer from the backside , not sure if I should seprate that shield from a possible layer (polirizati
#include #define _XTAL_FREQ 8000000 #include "lcd.h" // CONFIG1H #pragma config OSC = HS // Oscillator Selection bits (HS oscillator) #pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enable bit (Fail-Safe Clock Monitor disabled) #pragma config IESO = OFF // Internal/External Oscillator Switchove
Hi, everyone! I'm an electronic enthusiast from China. I'd like to ask you a question. Recently, I made an RF power amplifier with 2sc1971, and connected the transmitting antenna to adjust the standing wave to a minimum of 1.05. Instead, the transmitting power is not as large as when the standing wave is greater than 1.05. Why? Thank you!
Hi. I want to drive NOKIA 5800 lcd with microcontroller but my problem is pinout details of lcd connector. I mean, I have no documents or datasheet of it to undrestand about timing and protocol of lcd pins. I also downloaded the relevant files like "Nokia service manual"(lcd pinout attached), but i cant undrestand CDP0 (...)
What are sequence to initialize HD44780 display device ? . are given in page 42 to initialize in 4 bit mode but the table it seems confusing me 1. Display clear 2. Function set: 3. Display on/off control: 4.
Good evening to all I am not speaking about code I want to understand communication between MCU and lcd how does microcontroller send data to lcd so I made one flow chart that explain my understanding I have attached PDF file and I am looking advice with my flow chart
Hello guys I am Will from Levetop semiconductor. Our main product is lcd/TFT graphic controller, support resolustion: 320*240 (QVGA) 800*600 SVGA , to 1280 *1024 SXGA. Support 8/16-bits MCU parallel interfaces, and SPI, I2C serial interfaces Built-in Ggeometric Drawing Engine: provide Point Drawing, Line Drawing, Curve Dr
Hi i have a 2inch spi tft lcd with st7735 driver and i run emwin library on it using stm32f103ve. i dont use external ram for emwin and just use micro ram for emwin. i can use all of emwin capability except memory device. i try evrything but memory devices wont work. is that because of i dont use external ram or memory devices wont work on spi lcd
Hello again...we have about +1000 of lcd displays in the fab, around 40% of it are flickering (but text still readable). Our facility staffs check all groundings from those flickering but all were fine. During investigation, the flickering goes out when using HDMI instead of VGA. But it is not cost effective to replace all with HDMI...Thus, we nee
I have separate codes. 1) for displaying data on 16*2 lcd which is shifting at 0.5 seconds 2) another code for playing songs on DFplayer (2 minutes song whic plays when I press a button) I want to play the song and the text on the lcd to be shifting at the same time. How do I do that. bec the code waits till the song is being played by the
I have separate codes. 1) for displaying data on 16*2 lcd which is shifting at 0.5 seconds 2) another code for playing songs on DFplayer (2 minutes song whic plays when I press a button) I want to play the song and the text on the lcd to be shifting at the same time. How do I do that. bec the code waits till the song is being played by the
I try to use Xlcd library with default pin setup, It compiled successfuly. But when I simulate it gives this error. Attempted to read after writing a single nibble When I only use OpenXlcd command, It again gives same arror. OpenXlcd(FOUR_BIT & LINES_5X7); Here is my code, #defin
Hi I was working on my old lcd TV ccfl power supply. Incidentally the TV was repaired by a non authorized TV repaier technician and now was problem associted with CCFL gate driver, I traced the circuit diagram for isolated gate driver for the MOSFET to be similar to the image attached. however I am unable to read the components value from the
Please let know any website for Non Chinese lcd for Microcontrollers i.e Arduino, PIC, STM32 etc.
Hello, i need to design a driver to the lcd described on the following image. 156281 I'm using a frequency generator with a 5Vpp TTL signal to activate one segment or word of the lcd and commuting the corresponding COMM's but i have many interference, so... - I don't know if i'm using this correctly. - How i can
Please let me know that I want to program other STM32 Controller via Nucleo , would it be possible and how? And please let me know that I want to interface 480x480 tft graphical lcd to it. How to wire my lcd? ANY GUIDE PAPER OR BOOK PLEASE REFER ME. PLEASE FIND ATTACHMENT. 156249 156248[/ATTACH
Hi i have a problem i hope you could help me. :) im interfacing a 4x4 keypad with lcd display using pic16f877a my pic16f877a pic have a infinite loop while waiting for an input causing my i/o port's output voltage to be only 0.7V can u tell me how to solve the output voltage problem, its at PORTD PS: keypad_data returns 00H when what_button
Hey all, I want to build a power bank that's compatible with Qualcomm Quick Charge 3.0. There are many options available in the market but I want to do it myself so I could learn something. The power bank should have two USB A ports to charge the devices connected to it and one USB B(Micro USB) port to charge itself. What would be the majo
I have a tdk lamda power supply CUT35-522, which is 230V input, 5V,+/-12V output. I am using +12V output to power my arduino board with lcd. It works fine. The power supply claimed immunity to surge and EFT. To my surprise, when the supply was subjected to 2kV surge, residual voltage of +/-25V appeared at +12V output. This lead to resetting of ar
hellow guys i have a JHD-TFT1.8-16A lcd with st7735 driver in it. i want to run emwin on this lcd using a lpc1788 board. my board has a 32mb external ram and i am sure the ram config is ok. i write the below code to run emwin. but nothing happend when i use gui_setbackcolor function. please if some one knows whats wrong help me. i know this l