WSAL13186 – 4.2inch e-Paper Module/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

Technical overview of the Waveshare 4.2inch E-Ink display module (400×300 pixels) and its supported control platforms.

Related products at JW Tech

• WSAL13186 – 400x300, 4.2inch E-Ink raw display
• WSAL13353 – 400x300, 4.2inch E-Ink display module

Technical overview

• Resolution: 400 × 300 pixels on a ~4.2-inch diagonal.
• Available as a raw display (WSAL13186) or as a finished module (WSAL13353).
• Supported platforms: Raspberry Pi, Arduino UNO R3, Jetson Nano, RDK X3, STM32 (via CubeMX), ESP32/ESP8266.
• Demo projects in C and Python are provided for each platform.
• The manual covers parameters, operating principles, precautions, wiring, and resources (documents, demos, datasheets).
• FAQ sections address common questions about e-paper operation.

Notes and version constraints

• No specific commands, voltage ratings, or compatibility lists appear in the source document – no values invented.
• More detailed technical specifications (driver IC, operating voltage, pinout) are not present in the source; consult the datasheet.
• Version-sensitive steps (e.g., driver libraries for Raspberry Pi or STM32) require user confirmation before implementation.

Source and revision record

• 4.2inch e-Paper Module - Waveshare Wiki
• Source revision: 103804
• Captured: 2026-08-30T03:37:38+00:00
• SHA-256: b4ca1aa89163d80325c09f0fb24cca8decbc62d976ef6fde037699d4503e49a2