M5Stack today launches PaperMono, a compact ESP32-S3-based E-Ink development terminal designed for low-power information display, interaction, and connected IoT projects. PaperMono is now available through the M5Stack Store.     Product Value Featuring a 3.97-inch 4-level grayscale E-Ink display, touch input, integrated frontlight, NFC, LoRa, microSD storage, RTC, and a built-in 1150mAh battery, PaperMono brings display, interaction, power, and connectivity into one integrated device. Key Features Display and Interact The 3.97-inch 4-level grayscale E-Ink display provides a low-power viewing experience with the look and feel of paper. Touch input enables interactive interfaces, while the integrated frontlight supports comfortable use in low-light environments.   PaperMono also supports the CrossPoint Reader firmware , bringing an open and flexible reading experience to this compact E-Ink device.…