M5Stack PaperDIY kit offers $25 ESP32-S3 e-paper display for custom builds

M5Stack has released the PaperDIY Assembly Kit, a user-assembled development platform centered on a 4.7-inch e-paper display. The kit is built around an ESP32-S3-WROOM-1-N16R8 with 16MB flash, 8MB PSRAM, and 2.4GHz Wi-Fi. It includes battery power management via the M5PM1 chip, expansion connectors for SPI/I2S peripherals, and open hardware documentation. A pre-assembled Complete Kit with 3D-printed enclosure is available for $29.90.

Hardware and software details

• Display: ED047TC1 e-paper panel, 4.7-inch, 960 × 540 resolution, 16-level grayscale; display and driver circuitry can be powered down independently
• Main module: ESP32-S3-WROOM-1-N16R8 (dual-core Xtensa LX7 at 240MHz, 16MB flash, 8MB octal PSRAM, 2.4GHz Wi-Fi)
• Power: M5PM1 power management chip, 140mAh lithium battery via SH1.0-2P connector, USB Type-C 5V input
• I/O: microSD slot, USB Type-C, two 12-pin FPC connectors (0.5mm pitch) with SPI/I2S signals, two user buttons (GPIO3/GPIO4), multifunction power button
• Software: Arduino support via M5Unified and M5GFX libraries; ESP-IDF factory firmware source provided; browser-based flashing utility available
• Documentation: Schematics, pin mappings, component datasheets, and hardware docs published

Why it matters

The sub-$30 price and published schematics lower the barrier for custom e-paper projects in home automation, retail signage, and low-power IoT dashboards. M5Stack's existing library ecosystem (M5Unified/M5GFX) gives developers a head start over bare-panel approaches.