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A small rectangular e-paper module with a 2.9 inch capacitive touch screen showing a black and white display

WaveShare

WaveShare 2.9inch Capacitive Touch e-Paper Module 296×128 display

SKU CH-RWC1-HBCZA

A 2.9 inch capacitive touch e-paper display with a 296 by 128 resolution, SPI and I2C interfaces, and partial refresh support

  • CPU TypeOther
  • 9 inch capacitive touch e-Paper with 296×128 resolution
  • Five-point touch plus user-defined wakeup gesture for direct control
  • No backlight retains last image indefinitely after power removal
  • Ultra-low power draw only during refresh cycles
  • SPI and I2C interfaces with minimal I/O pins and Pico examples

2.9inch Capacitive Touch e-Paper

This 2.9inch capacitive touch e-Paper module shows a 296×128 pixel black-and-white image. It targets Raspberry Pi Pico developers who need a sunlight-readable display that holds its picture without power. Five-point touch and a user-defined wake gesture add interactive control for portable or always-on projects.

Interface and Power Checks

Confirm your Pico design can spare an SPI or I2C bus and the matching voltage rail for the module. The board needs minimal IO pins, so verify pin assignments against the supplied C/C++ and MicroPython examples. No backlight circuit is present, so plan for ambient-light readability in the final enclosure.

Thermals Noise and Power Draw

With no backlight and near-zero current between refreshes, the display adds virtually no heat and makes no audible noise. Power is drawn only during a screen update, and partial refresh keeps those events brief. The panel retains the last image indefinitely after power is removed.

Highlights

  • 9 inch capacitive touch e-Paper with 296×128 resolution
  • Five-point touch plus user-defined wakeup gesture for direct control
  • No backlight retains last image indefinitely after power removal
  • Ultra-low power draw only during refresh cycles
  • SPI and I2C interfaces with minimal I/O pins and Pico examples

Specifications

CPU TypeOther

Questions about this item

Does the WaveShare 2.9inch capacitive touch e-Paper module ship with a Raspberry Pi Pico or must I buy the Pico separately?

The module is sold alone; a Raspberry Pi Pico is not included and must be purchased separately if you plan to use the provided C/C++ and MicroPython examples.

Which interface should I choose between SPI and I2C for this 296×128 display?

Both SPI and I2C are supported on the same board; SPI offers higher refresh speed while I2C uses fewer GPIO pins, so pick the one that matches your Pico project’s pin budget and timing needs.

How does the 296×128 resolution look on the 2.9inch screen when showing text or simple graphics?

The 296×128 pixel grid gives a crisp black-and-white image at roughly 128 PPI, sharp enough for small fonts and icons, and the capacitive layer adds five-point touch without reducing clarity.

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