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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Dual Voltmeter for RV Electrical Systems
This post was written by Brent, one of Crystalfontz’s engineers. Brent’s Voltmeter Build I have an RV that has both a vehicle electrical system and a camper electrical system. I wanted a way to see the voltages of both systems at a glance while driving. I tried some cheesey voltmeters from e-bay and some other
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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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New Products from Q2
Once a quarter, we take a beat to round up our latest releases. You can see previous product round ups here. 3.5″ Display Family Completely new to the website is a family of 3.5″ Sunlight readable IPS TFT LCDs. This family includes a non-touch, capacitive touch, and resistive touch display. The bright backlight makes this
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Flexible OLED Smart Watch
Kevin Choi is back at it with neat projects. Last time, it was Transparent OLED smart glasses, this time a cuff-style watch with an embedded flexible OLED! This watch uses our flexible OLED bent into the cuff chassis. A button on an attached ring allows Kevin to turn the OLED on and off (a smart
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Crystalfontz In the Wild: Linus Tech Tips
One of our engineers spotted a familiar key pad when watching this video: You can see a CFA533 or CFA633 a few times in this video. It appears that Intel uses our modules throughout their testing and development facility. The first sight is during the intro, just quick enough you might miss it: Then, there’s
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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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Arduino Shield LCD Giveaway!
We recently replaced our family of CFAO12864D3 graphic LCD displays with a new family of 128×64 low power backlit LCDs, but we have some of the Blue D3 displays left in stock. They’re great displays with bright backlights and we have an Arduino-shield style breakout board for them, so they’re great for hobby builders! A
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Spring ’22: New Products
7″ EVE TFT New to our EVE display line-up and our biggest EVE display yet, the 7″ EVE uses Bridgetek’s BT817 to simplify integrating this display. This display module has 1024×600 pixels, a capacitive touchscreen, a sunlight readable backlight, mounting stand-offs, and can be powered off a single 5v voltage source. Product Changes As with
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New Products and a Supply Chain Update
As you’re likely aware, electronics shortages and supply chain problems have amplified from ripples to big waves in the past few months. Back in December 2020, we released a blog post warning about some shortages, and the market has not settled. We are actively working with our suppliers to make sure we have the displays
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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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