stemdiy 2.13 inch 250x122 e-paper e-ink epaper display screen module hat for rpi raspberry pi pico board stemdiy features <b> <br> the backlight does not keep displaying the last content for a long time even when the power is turned off <b> <br> ultra-low power consumption, basically power is required only for refreshing <b> > <br> spi interface requires minimal io pins <b> <br> <b> <br> specifications <b> <br> operating voltage: 3.3v <b> <br> interface: 3 wires formula spi, 4-wire spi <b> <br> external dimensions: 65.00 x 30.50 mm <b> <br> display size: 48.55 x 23.70 mm <b> <br> dot pitch: 0.194 x 0.194 mm <b> < br> resolution: 250 x 122 pixels <b> <br> display color: black, white <b> <br> grayscale: 2 <b> <br> partial refresh time: 0.3 seconds <b> <br> full refresh time: 2 seconds <b> <br> refresh power: 26.4mw (typ.) <b> <br> standby current: <0.01ua (almost none) <b> <br> viewing angle:> 170 ° <b> <br>