WSAL10628 – 4.3inch e-Paper UART 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
The module is a 4.3-inch e-paper display with a serial interface and 800x600 resolution. It supports 4-level grayscale, has a built-in font library, and includes internal NandFlash storage.
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Technical overview
- Interface: UART; default baud rate after power-up: 115200
- Resolution: 800 x 600 pixels
- Graphics: 1-bit and 2-bit bitmap images; other formats must be converted to the specified format
- Image file names: uppercase letters, length under 10 characters including the dot, e.g. PIC7.BMP correct, PIC7890.BMP incorrect
- Internal storage: 128 MB NandFlash for fonts and image data
- External storage: TF card formatted as FAT32 required
- Supply voltage: VCC 3.3–5.5 V
- Logic level: compatible with 5 V; sleep-mode current below 5 mA
- Sleep/wake behavior: status indicator on during normal operation, off in sleep mode; rising edge on WAKE_UP pin wakes the system
- Applications: e-book readers, mall POS displays, shelf labels, industrial instrument displays
Notes and version constraints
- The exact Arduino wiring is truncated in the source – please verify against the full document
- The complete command set is not present in the available sections – consult the full documentation
- Converting images requires the external tool uC-GUI-BitmapConvert.exe – availability not guaranteed
- Use of external waveform files depends on the driver IC – details are version-sensitive
- Color variation on tri-color models is a normal phenomenon – no guarantee of uniform color
Source and revision record
- 4.3inch e-Paper UART Module - Waveshare Wiki
- Source revision: 75771
- Captured: 2026-08-29T08:06:03+00:00
- SHA-256:
ec993a27490532f7127b028ee79b757f19d8a93b1ccbc70c0fcdd49a2e38902e