This 2.9 - inch e - paper module is designed specifically for the Raspberry Pi Pico. It supports partial refresh, consumes low power, offers a wide viewing angle, and delivers a paper - like display effect. Ideal for price tags, shelf labels, and industrial instruments. Key features include no backlight, allowing it to keep showing the last content even when powered off. It has ultra - low power consumption, only requiring power for refreshing. The SPI interface needs minimal IO pins. It comes with development resources and a manual, including Raspberry Pi Pico C/C++ and MicroPython examples. Specifications: Operating voltage is 3.3V/5V, display colors are black and white. It uses 3 - wire or 4 - wire SPI interface with 2 grey scales. The outline dimensions are 82.00 × 38.00mm, and the display size is 66.89 × 29.05mm. Partial refresh time is 0.3s, full refresh time is 2s, dot pitch is 0.226 × 0.227mm, refresh power is 26.4mW (typ.), resolution is 296×128 pixels, standby current is less than 0.01uA (almost none), and viewing angle is greater than 170°. The e - paper display uses microcapsule electrophoretic technology, similar to traditional printed paper. It can clearly show images and texts under light without a backlight. The board has a female pin header for direct attachment to the Raspberry Pi Pico (Raspberry Pi Pico not included). It's suitable for various tags like price tags, asset/equipment tags, etc. It also has an onboard voltage translator, compatible with 3.3V/5V MCUs. Check the wiki page 'Pico - ePaper - 2.9' for resources, as they may vary by product.
Using this e - paper test board is quite straightforward. First, connect the board to your Raspberry Pi Pico using the onboard female pin header. Make sure to check the voltage requirements of your setup, as the board is compatible with both 3.3V and 5V MCUs. You can start programming it using the provided development resources, which include C/C++ and MicroPython examples for the Raspberry Pi Pico. When it comes to displaying content, the board can show text and images clearly under natural or artificial light, thanks to its e - paper technology. It doesn't need a backlight, so you don't have to worry about that. For refreshing the display, remember that it consumes power only during the refresh process, which is very energy - efficient. In terms of maintenance, keep the board in a dry and clean environment. Avoid exposing it to extreme temperatures or physical damage. Also, check the wiki page 'Pico - ePaper - 2.9' for specific resources related to your product, as they might be different for each model.
