Capacitive Touch Display E-paper E-Ink - 2.9'' 296x128px - SPI/I2C - black and white - for Raspberry Pi Pico - Waveshare 20051

Touch screen display by Waveshare made ine-papertechnology, its diagonal is2,9" and resolution is 296x 128 px. The screen is designed for use withRaspberry Pi Pico. The image is displayed in two colors: black and white. It communicates throughSPIandI2Cinterfaces (It is necessary to use both interfaces for full functionality). The e-paper technology makes this type of display suitable for use in e-book and electronic magazine readers.

Touchscreen e-paper display for Raspberry Pi Pico.

• 2.9" screen with 296 x 128 px resolution and capacitive touch
• Supports 5 touch points, user-defined screen wake-up gesture
• No backlight, retains last displayed image for long time after power disconnection
• Ultra low power consumption, power is only required to refresh the screen
• SPI / I2C interface (It is necessary to use both interfaces for full functionality)

E-paper displays use electrophoretic microcapsule technology for display: charged particles suspended in a transparent liquid will move to the sides of the microcapsule when an electric field is applied, making the microcapsule visible by reflecting ambient light, just like traditional printed paper. The e-paper display clearly displays images/text in lamplight or natural light, requires no backlight, and has a viewing angle of nearly 170°. This type of display is usually used in e-book readers because of its paper-like effect.

The e-paper display module has a socket for direct connection to the Raspberry Pi Pico. It uses such pins as:

• VSYS - input voltage (default)
• 3V3(OUT) - input voltage
• GND - ground
• GP6|TP_SDA - I2C data line of the touch controller
• GP7|TP_SCL - I2C clock line of the touch controller
• GP8|e-Paper_DC - data / command pin, high for data, low for commands
• GP9|e-Paper_CS - SPI chip select pin, activated by low state
• GP10|e-Paper_CLK - SPI SCK pin
• GP11|e-Paper_DIN - SPI MOSI pin
• GP12|e-Paper_ERST - external reset, activated by a low state
• GP13|e-Paper_BUSY - busy status output
• GP16|TP_TRST - touch controller reset, low state activated
• GP17|TP_INT - touch controller interrupts
• GP2|KEY0 - user key 0
• GP3|KEY1 - user key 1
• GP4|KEY2 - user key 2
• RUN - reset button

• Operating voltage: 3,3 V
• Interface: 3-wire SPI, 4-wire SPI, I2C
• Displayed colors: black and white
• Gray scale: 2
• Partial refresh time: 0.3 s
• Full refresh time: 2 s
• Current consumption at refresh: 26.4 mW
• Idle current consumption: up to 0.01 uA
• Viewing angle: up to 170°
• Touch: Capacitive
• Number of touch points: 5
• Diagonal size: 2.9"
• Resolution: 296 x 128 px
• Pixel size: 0.227 x 0.226 mm
• External dimensions: 89.1 x 42.7 mm
• Display dimensions: 66.89 x 29.05 mm

• Manufacturer's website: Waveshare 20051
• User guide
• diagram
• Specifications
• Sample codes
• GitHub repository