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195 Threads found on Lcd hd44780
replacing VFD with lcd require some code change in the application.
I even tried to add delays after all lcd_ commands but still it doesn't work properly You did not mention what is the oscillator frequency of the microcontroller aswell nothing about the cable length of the lcd, which could give us some indication of a possible issue related to signal integrity, anyway still on the
Guys, Can I use blue hd44780 16x2 lcd with 3.3V power supply ? Thanks
I'm fairly certain the RG2004 series utilizes a hd44780 compatible chipset, like the S6A0069. While I do not have RG2004A datasheet, I believe it is very similar to the attached GDM2004D datasheet. If correct, be aware the connector needs to be orientated at the top of the device and pin 1 is in the top left corner. I've also attached the
The following two videos shows an interfacing of lcd display(with hd44780 controller) with parallel port and serial port respectively. A two softwares are used for both interfacing which can be downloaded
Hello All, I'm currently building an interface to hd44780 lcd, and needs PWM to drive the backlight. For some electrical rules on PCB, i can only set PWM at P1A/RC5, but i'm unable to get it done, even with ISIS Proteus simulation, its outputs nothing. Here is the code for the PWM for lowest possible frequency, at 48MHz fosc: void Ini
I changed lcd library found on the internet from STM32F4 to STM32F3. Now it has not any errors but the lcd does not display any character. This is my code #include "stm32f30x.h" #include "hd44780.h" #include "stdlib.h" #include int main(void) { lcd_ConfigurePort(GPIOD,GPIO_Pin_7, GPIO_Pin_5, (...)
Hey I have been connecting an lcd to Arduino but I made a mistake: /* LiquidCrystal Library - Custom Characters Demonstrates how to add custom characters on an lcd display. The LiquidCrystal library works with all lcd displays that are compatible with the Hitachi hd44780 driver. There are many of them out (...)
Hello, bought PIC programer(mikroProg) from mikroElektronika and i have some problems with lcd could you help me out? Im using PIC16F628A and Hitachi hd44780 lcd. My code in C looks like this : sbit lcd_RS at RA0_bit; sbit lcd_EN at RA1_bit; sbit lcd_D4 at RB0_bit; sbit (...)
I am looking for 16x4 lcd initialization code for lcd in 4 bit mode using pic18f
---------------------------------------------------------------------------------- -- Company: -- Engineer: -- -- Create Date: 14:43:01 05/22/2015 -- Design Name: -- Module Name: lcd - Behavioral -- Project Name: -- Target Devices: -- Tool versions: -- Description: -- -- Dependencies: -- -- Revision: -- Revi
This is Multiple I2C lcd code. It is written using CCS C Compiler version 5.044. This si tested in Proteus and also EasyPIC v7 development board with 2 x 20x4 lcds. lcds should be hd44780 or compatible. I have used I2C lcds and I2C lcd modules from Banggood. I will soon post mikroC PRO (...)
When I power this device using first 3 pins ( Vss=GND, Vdd=+5V, Vo=GND) I do not have "bars" (restangles 5x8 in line.. ... in one or more lines). On another hand, all other character lcds I have here has regular bars when "powered" this way. Another problem when I put this lcd in circuit - it has nothing at start, then it starts up with "bars" b
Hi all. Tried a search but did not find any answer. My current application is using the pic 16f877 displaying data onto an lcd 2x16 display (can't remember the details about the model). I would like to display a couple of custom characters like male or female, I'm using Micro C. any ideas?
Hi, I am using hd44780 4x20 lcd to display some data.. I am using PC30f5011 controller and external oscillator configured as XT Oscillator with PLL4X... its not showing any data only Back light is switching On. External Oscillator tested its working fine.... Same code Configured as Internal Fast RC with PLL 16x lcd working fine. (...)
I have ported this mikroBasic code to mikroC code but the data displayed is not proper. What is the problem with the code ? The author of the mikroBasic code has shown that the data is displayed properly on hardware lcd. I am testing in Proteus as I have not yet received my 40x4 lcd. I
Hi I hope this will help you and in this there is some jumper
Hi, I need some help to fix code issues on lcd 16X2 which I have implemented for MSP430F5132 controller.(see the attachment ) . And it is seem to be working only while debugging, i.e it is displaying characters while debugging not after coming out from debugging. I guess the issue is related to either the clock or with delays in the program.
I have got my 4x20 lcd working so I can write data to it but I cannot succesfully read the busy flag. This is a 3.3v PIC so I am using open drain outputs and 5v tollerant inputs. After scoping the Enable and D7 lines I can see the D7 level is low when it should be reading but my routine (lcd_status) always returns 1. I have been trying all manne
If I define a custom character that uses the lowest (8th) pixel row also, this row is never displayed, although the hd44780 datasheet says this: The 8th line is the cursor position and its display is formed by a logical OR with the cursor. Maintain the 8th line data, corresponding to the cursor display position, at 0 as the curs