Frequently Asked Questions
Our support team sometimes notices they’ve received the same question a few times. When that occurs, we add it to our FAQ queue, to make a blog post accessible to everyone. These FAQs include how to get devices working, questions about the display industry, questions about microcontrollers, and more! Do you have a question not covered here? Contact Crystalfontz Support.
ePaper vs E Ink: what’s the difference?
If you’ve been researching low-power display technology, you’ve probably seen both terms used interchangeably. Here’s what they actually mean — and why the distinction matters when you’re speccing a display for your project. Q1What is ePaper? ePaper (electronic paper) is a broad category of display technology that mimics the appearance of ink on paper. Rather […]
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Demystifying TFT LCD Display Specifications: A Guide for Buyers
When it comes to purchasing a new display, whether for a smartphone, computer monitor, or any type of screen, the technical specifications can often be overwhelming. TFT LCD displays have become ubiquitous in our daily lives, offering vibrant visuals and crisp images. However, understanding the various specifications associated with TFT LCD displays is crucial to
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Custom Images on CFA735 and CFA835
The CFA735 and CFA835 product lines have the option to store images on the display. Image from Computer. Open the photo in Paint I am going to just use a simple TESTING text in paint to demonstrate how to convert and show on your display. Sending the Photo to the Display Viewing the Photo on
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Update the Spinning Logo on Your EVE Display
Our EVE demo code includes our spinning logo bouncing around the display. This image is saved in the program memory of the Seeeduino, so it has to be small. Step 1: Create Your Logo Image The program memory on the Seeeduino is quire small, so the logo image has to compress to be quite small
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Transparent LCD on a Raspberry Pi
Want to bring up one of our transparent LCDs on a Raspberry Pi but confused about how exactly to do that? This is the post for you! Getting Started This guide will walk through using our CFAG12864Ux/Tx Raspberry Pi demo code. It is relevant to a wide range our our graphic LCDs, a list of
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Custom Images on EVE Displays
A frequent question that is received by our support team is how to load custom images on our EVE lineup of displays. Due to differences in the EVE processors between boards and other factors, depending on the display you have, the process may change. The different processes for the boards have been outlined below. The
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Code Questions: CFAL4864A-071BW
Our customer support team is here to help! We have recently received some questions about our small 0.71″ OLED display. These questions and answers are also relevant to our 0.66″ OLED display, which shares the same pinout and controller (the SSD1306). To send 8 bytes of data using SPI, each byte requires 8 data clocks
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CFA632 and CFA634 Custom Characters
We recently received a question about setting custom characters on our CFA632 and CFA634 modules. The datasheet includes an example of using custom characters which looks like this: The customer wanted to know what was going on and what would the custom characters look like. Here is how our support engineer answered: 1. The example
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What is a Display?
Brand new to displays? This post is the perfect start point. What does “display” mean? When we say “display” we are speaking generally about all LCD, TFT, OLED, and ePaper displays. Sometimes displays are included in a module that adds features and these modules are still called “displays” so that can certainly be confusing. In
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RGB and Color Depth
How do TFTs show color? What is color depth for RGB displays? What is the difference between 16.7M colors and 262k? Let’s explore it! How Do TFT LCDs Show Color? To start, let’s discuss how RGB LCDs work. TFT LCDs (thin film transistor liquid crystal displays) comprise a series of layers: Each pixel of a
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Tiny OLED Full Color Slideshow
This guide will walk through how to get started with one of our small full color OLED displays. Then, we’ll talk about a super quick and easy project to do with this display – a photo slideshow! The display we’ll be using is a 0.96″ full color OLED. We have two versions of this display,
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