Tag: ThreeColor

Driving Three-Color E-Paper Pricetags With An Arduino

ePaper pricetags are becoming popular parts in the hacker community as a cheap way into tinkering with the technology. [Aaron Christophel] got his hands on a 4.4″ model with red, black, and white colors, and set about programming an ESP32 to drive the price tag instead. The protocol the display uses was reverse-engineered by prompting