Crystalfontz is pleased to announce a new line of 128 x 32 OLED (Organic Light-Emitting Diode) displays as part of our product catalog. These displays are compact in size and feature a high resolution 128×32 graphic display. Quick Start Guide – What You Need to Know 1) These displays are small and thin. You can … Read more New Product: 128 x 32 OLED Displays
2022/08/11 – The modules described in this blog post have been updated with new displays. Read about it here. Or go directly to the updated Graphic LCD Arduino Shield Display page. Crystalfontz America announces three new supporting products for the128x64 pixel COG (Chip-On-Glass) graphic LCD display module series of displays based on the CFA10072 carrier … Read more New Product: Arduino and LCD Module Bundles
Question Some of your LCDs have a flexible connection, but I can’t find any connectors that fit them. What is the best way to connect these modules to a PCB? Answer There are three kinds of modules that have this kind of construction: TAB (Tape Automated Bonding) COF (Chip On Flex) and some COG (Chip … Read more FAQ: Hot Bar Soldering for TAB or COF Style LCD Modules
This is the first in a series of day-in-the-life posts at Crystalfontz. Today, we go behind the scenes and visit the production line — the final stage of the LCD manufacturing process. The Crystalfontz high-level interface modules go through a battery of tests and inspections. Our dedicated crew checks for electronic problems as well as … Read more Behind The Scenes: LCD Production Line
Question: How do I display an image on CFA835 module using the RS232 interface? Answer: You can send an image directly from your host application, or read it off the uSD card. Image Requirements for Use on an LCD Module The image needs to be a BMP, grayscale, 8 bits/pixel, no compression, Microsoft Windows format only. … Read more FAQ: How Do I Display an Image on the Crystalfontz 835 LCD Module?
In our last post, we talked about connecting a Raspberry Pi to a Crystalfontz LCD. In this post, we look at connecting an Arduino Uno with a CFA533 I2C LCD with a keypad. This gives you the ability to output and control your Arduino via I2C using a character module with a keypad interface. Let’s Get Started Step … Read more Tutorial: Connect an Arduino to a Crystalfontz 533 Keypad LCD
Have you ever been at the car wash in the late afternoon, struggling to read the instructions on the display at the pay kiosk? That may be because it was not a sunlight-readable LCD display. What Makes a Display Readable in Bright Light? There are two ways to get sunlight readability: 1) is to work … Read more What Makes an LCD Sunlight Readable?
Black blobs, “gob tops”… what are those black lumps on the back of LCDS? Let’s Take a Closer Look This image shows the detailed CAD work that goes on behind that innocuous black blob of plastic on the back of COB (Chip-On-Board) LCD modules. The engineers must analyze the wire bond length and angle to … Read more What’s Under the Black Blob on the Back of LCDs?
It’s amazingly simple to get this OLED module working with an Arduino Uno! The below photo offers a quick overview showing a Crystalfontz CFAL5016A-Y 50×16 Graphic OLED Module in SPI mode connected to an Arduino Uno R3. The display is connected using 3-wire SPI mode which uses 10-bit transfers. The software demonstrates bit-banged software 10-bit SPI. Video Demonstration Please … Read more Arduino Driving a SPI Graphic OLED
We recently had a forum customer ask for instructions on talking to our new CFA835. One of our excellent firmware designers, Mark, put together some sample code in order to do just that. I’ve created a project on GitHub to host this project Linked Here. We welcome comments, forks, and pull requests. Here’s a convenient … Read more CFA835 Communication With An Arduino