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WSAL19406 – Pico-ePaper-2.13/en

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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 Waveshare Pico ePaper 2.13 is a 2.13-inch e-ink display module (250 × 122 pixels, black/white) with an SPI interface for the Raspberry Pi Pico. It runs at 3.3 V, has a partial refresh time of about 0.3 s and a full refresh time of about 2 s.

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Technical overview

  • Resolution: 250 × 122 pixels; dot pitch 0.194 × 0.194 mm; active area 48.55 × 23.71 mm.
  • Operating voltage: 3.3 V; standby current < 0.01 µA; refresh power typical 26.4 mW.
  • Interface: SPI mode CPHL=0, CPOL=0 (SPI0); signals: CS, DC, SCLK, SDIN, RST, BUSY.
  • Pico pin mapping: DIN→GP11 (MOSI), CLK→GP10 (SCK), CS→GP9, DC→GP8, RST→GP12, BUSY→GP13, VCC→VSYS, GND→GND.
  • Pixel definition: 1 bit per pixel (1 = white, 0 = black); 1 byte encodes 8 pixels; data stored MSB-first.
  • Full refresh takes about 2 s and produces brief flicker – this is normal.
  • Partial refresh takes about 0.3 s; after several partial refreshes, perform one full refresh or the display may become permanently faulty.
  • Do not leave the screen under continuous high voltage: use sleep mode or power off when idle.
  • The FPC cable is fragile: bend only horizontally, not vertically; protect the panel from impacts.
  • Demo codes are available via wget or git clone; the C project is compiled with CMake and flashed as epd.uf2.

Commands and examples – verify before use:  

sudo wget https://files.waveshare.com/upload/5/5a/Pico_ePaper_Code.zip
unzip Pico_ePaper_Code.zip -d Pico_ePaper_Code
git clone https://github.com/waveshare/Pico_ePaper_Code.git
cmake -DPICO_BOARD=pico -DPICO_PLATFORM=rp2040 ..
make -j9

Notes and version constraints

  • Stated refresh times and power figures are measured values; actual results may vary.
  • After sleep mode, the driver must be re-initialized before sending new image data.
  • If the displayed image looks wrong, verify the configured image width and height.
  • Older driver boards support 3.3 V only; newer versions (V2.1+) include level conversion for 3.3 V and 5 V – confirm board version before use.
  • For long-term storage: clear the screen via software and store it face-up.
  • If the program hangs on 'busy': check wiring and SPI parameters (clock rate, mode).

Source and revision record

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