Debashis Das writes that M5Stack has released the PaperDIY series, an updated version of its 2020 M5Paper kit that pairs an ESP32-S3 MCU with a 4.7-inch e-paper display supporting 16 levels of gray. The product is available in two versions: a Complete Kit that ships factory-assembled in a 3D-printed enclosure, and an Assembly Kit designed for custom projects. Both boards include a microSD card slot, a built-in 140mAh battery, and a custom M5PM1 low-power management chip.
- The display uses an 8-bit parallel interface, enabling direct control without a secondary display controller
- M5Stack provides factory firmware source code based on ESP-IDF, including examples for battery monitoring and Wi-Fi scanning
- A critical warning notes that mounting screws must have a thread length under 3mm to avoid permanently damaging the e-paper display
- The Assembly Kit retails for $25, while the Complete Kit costs $29.90
- The display uses an 8-bit parallel interface, enabling direct control without a secondary display controller
- M5Stack provides factory firmware source code based on ESP-IDF, including examples for battery monitoring and Wi-Fi scanning
- A critical warning notes that mounting screws must have a thread length under 3mm to avoid permanently damaging the e-paper display
- The Assembly Kit retails for $25, while the Complete Kit costs $29.90
