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