One of our most frequently asked questions is “Can I use the transparent OLED with a Raspberry Pi?” The answer is a resounding Yes! The transparent OLED can be driven by the GPIO pins of the RPi. And even better? It’s really quite simple! How To Use a Raspberry Pi to Run a Transparent Display … Read more Transparent OLED on Raspberry Pi
We were recently working with a customer who was using our 10.1″ HDMI display with a Raspberry Pi, but he had run into a problem. When the Raspberry Pi shut down, he needed the display backlight to also turn off and stay off. Since the backlight on the display turns on if uncontrolled, when the … Read more Turn HDMI Display Backlight Off When Raspberry Pi is Off
DIY Transparent Display The transparent display we offer for sale (CFAL12856A0-0151) is an OLED (Organic Light Emitting Diode) display. OLED displays produce images by emitting light in the corresponding color. To produce black in a normal OLED, the pixels are simply turned off. With the transparent display, if the pixels are turned off, the display … Read more Transparent Display: How to Hack Together Your Own Transparent Display
Have you ever tried to bring up a display only to have it show you something like this? What are some common problems with LCDs showing garbage? If it is a new design or a prototype using a common HD44780 style LCD, then it is almost certainly wiring or code. Troubleshooting Wiring Problems: Ask someone … Read more Help! I have garbage showing on my 16×2 LCD
Whether it is a ‘traditional’ USB display, or one of our TFT, OLED, or ePaper modules, we understand that bringing up displays can be a complicated process. We are here to help and we do everything we can think of to make it an easy-to-understand and painless process so you can be up and running in … Read more Bringing Up Your Crystalfontz Display
Check out this developer’s innovative use of the Crystalfontz 128×296 3-color ePaper display — a solar-powered WiFi ePaper setup. Developer Frank Buss provides a detailed write up of his project on his HackADay post. From his post: “The amazing thing about ePapers is that the image lasts without power forever (I tested it for months), and the contrast is … Read more Crystalfontz In the Wild: Solar-Powered WiFi ePaper
Jason Eppink of the Museum of the Moving Image in Astoria New York has been working on a great little project that shows subtitles on an external Crystalfontz LCD, while the video plays on a monitor above. The project is open source on GitHub. Project Details It uses a Raspberry Pi to play the videos. … Read more Crystalfontz in the movies? Well, almost!
When working with a 20×4 character LCD, you might be surprised to see the controller set to 2-line mode: Write_To_LCD(COMMAND,0x38); //SET 2 LINE,5*8 FONT Why would a 4-line LCD’s controller be set to 2-line mode? It has to do with the way the LCD glass is laid out. Essentially the display is the right and … Read more FAQ: Why does the initialization code for a 20×4 LCD specify 2-line mode?
Question from our tech forum: I’m looking to put LCDs on my new servers, which are pretty significantly complex even before you get into the software on them. This customer had a complex set of requirements for LCDs to be used in a server set up. Summary: Need to drive four LEDs, and need 14 … Read more FAQ: LCDs for Servers