EYE SPI, ssd1681 eInk, and Pico

code.py

# EYESPI & ssd1681 connected to a Pico
import time, board, displayio, adafruit_ssd1681
from displayio import FourWire  # ← FIXED: Changed from "fourwire import FourWire"

displayio.release_displays() 

# This pinout works on a Feather M4 and may need to be altered for other boards.
spi = board.SPI()  # Uses SCK and MOSI
epd_cs = board.GP17
epd_dc = board.GP21
epd_reset = board.GP15
epd_busy = board.GP2

display_bus = FourWire(spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000)
time.sleep(1)

display = adafruit_ssd1681.SSD1681(
    display_bus,
    width=200,
    height=200,
    busy_pin=epd_busy,
    highlight_color=0xFF0000,
    rotation=180,
)

g = displayio.Group()

print("Running eInk code")
with open("/display-ruler.bmp", "rb") as f:
    pic = displayio.OnDiskBitmap(f)
    t = displayio.TileGrid(
        pic, pixel_shader=getattr(pic, "pixel_shader", displayio.ColorConverter())
    )
    g.append(t)
    display.root_group = g
    display.refresh()
    print("refreshed")
    time.sleep(120)