Questions tagged [character-lcd]
A LCD display for printing characters only. It's usually very easy to interface with and suitable for simple microcontrollers to create menus or show system status. HD44780 compatible LCDs are the most common type.
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20x4 LCD occasionally shows garbage characters when relay switches AC UV lamp [closed]
I designed a PCB using an STM32 microcontroller that controls two 20x4 LCD displays. The PCB also contains a relay that switches an AC UV lamp (~6 W).
Most of the time the LCD works normally, but ...
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LCD Display Corruption on Raspberry Pi Pico (MicroPython) - Lines Overwriting Each Other
I am building a system using a Waveshare RP2040-Zero ( like a Raspberry Pi Pico ) with an HD44780-2004 LCD over I2C. I'm facing a strange issue where the text on one line of the display occasionally ...
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Seven Segment LCD Reflector
On a seven segment LCD reflector type display, when a segment is activated and turns to black, what causes the segment to be seen as black?
Image Source
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New 2mux LCD for an existing controller from the 80's
I’m working on a reverse engineering LCD project that involves the IST3042CA1 chip, a TN/STN-LCD driver with SPI, I2C, and direct serial interface compatibility. I’m looking for an engineer ...
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How do custom images get added to LCDs
We're working on a project that has a BOM with a custom LCD and no part number. I'm trying to understand the process around logos on LCDs before going back to our partner.
In the Varitronix example ...
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Needed Assistance - EMI Issues with 16x2 LCD Display (Model BCB-1602-03C)
Hello stack Exchange Community,
I am Yogesh D from Trident Pneumatics Private Limited, R&D Innovation - Electronics. We are currently using a 16x2 LCD display (model BCB-1602-03C) in the ...
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What type of 16x02 LCD display is this? [closed]
A buddy of mine has this defect display. It comes out of a Lenz LH100 handheld throttle. He is looking for a replacement and the company in question is not going to send one. From the looks of it, it ...
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ST7735 driver IC connection with TFT DISPLAY
I am a noob to electronics and thinking of using this 128x160 1.8 inch Color TFT LCD Display with ST7735 Controller SPI in my project. So, does the TFT Display come with a pre-programmed ST7735 ...
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How to extract information from HT1621B LCD Driver
This is my first post so I apologize if I mess this up and am trying to keep this short. I have a rangefinder that I would like to retrieve the output data from. This is the datasheet for the chip and ...
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Interfacing HD44780 LCD with PIC16F690 in C (XC8 compiler)
I am trying to interface a PIC16F690 with a HD44780 LCD module, in 4-bit mode. My connections are as follows:
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Can I separate a LCD screen from the board?
I am using this 2x16 LCD
https://www.amazon.com/GeeekPi-Interface-Adapter-Backlight-Raspberry/dp/B086VVT4NH/
I am trying to make the LCD ultra slim to fit in my project. Can I dismantle 2x16 LCD and ...
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Interfacing with LCD in Ben Eater's Video
So in 16:28 of the video where Ben Eater hooks up the LCD in his 6502 series, you can see that he interfaces with the LCD by sending the data, setting the RS/RW bits, and then essentially toggling the ...
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LCD 3.3V Black Boxes Row with STM32F030C8T6TR
I'm learning mcu programming using ARM Microcontrollers: Programming and Circuit Building Volume 1 book by Patrick Hood-Daniel and I stuck on Chapter 17 "Add the LCD to the Circuit". I've ...
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LCD 16x2 is showing only black boxes despite correct wiring
I copied this tutorial from the linkalarm clock arduino but my LCD is only showing black boxes despite the correct wiring and code. I copied literally everything on the video. I also tried it with ...
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16x2 LCD copper foil around the pin holes was accidentally removed
I tried to remove the I2C attached to the LCD. Is it okay if that copper foil around the 16x2 LCD pin holes got removed? I didn't do it intentionally, it just happened when I solder pumped the ...
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