Reverse Engineering A Sony Car Stereo LCD

Jose Luis Monteiro (emsyscode) reverse-engineered the LC75826W driver chip powering the front-panel LCD of a Sony CDX-A250 car stereo, then wrote Arduino code to control it. He used the chip's datasheet to figure out the protocol, published his work on GitHub under an MIT license, and posted a video walking through the reverse-engineering process. The code is specific to the CDX-A250's LCD rather than a general-purpose driver library, but it's a useful starting point for anyone working with the same driver chip on a different display.

Source: https://hackaday.com/2026/09/20/reverse-engineering-a-sony-car-stereo-lcd. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.