eink.py

from machine import Pin, SPI
import time

WIDTH = const(264)
HEIGHT = const(176)

cs = Pin(18, Pin.OUT)
dc = Pin(6, Pin.OUT)

rst = Pin(0, Pin.OUT)

spi = SPI(
    0,
    sck=Pin(2),
    mosi=Pin(3),
    miso=Pin(4),
)


def write_cmd(cmd):
    cs.off()
    dc.off()
    spi.write(bytes([cmd]))
    cs.on()


def write_data(*data):
    cs.off()
    dc.on()
    spi.write(bytes(list(data)))
    cs.on()

# HW reset
rst.on()
time.sleep_ms(10)
rst.off()
time.sleep_ms(10)
rst.on()
time.sleep_ms(10)

# Power on
write_cmd(4)
time.sleep_ms(255)

# Panel config
write_cmd(0)
write_data(0xAF)

# PLL
write_cmd(0x30)
write_data(0x3A)

# Power setting
write_cmd(1)
write_data(3, 0, 0x2B, 0x2B, 9)

# Booster soft start
write_cmd(6)
write_data(7, 7, 0x17)

# Mistery command
write_cmd(0xF8)
write_data(0x60, 0xA5)
write_cmd(0xF8)
write_data(0x89, 0xA5)
write_cmd(0xF8)
write_data(0x90, 0)
write_cmd(0xF8)
write_data(0x93, 0xA2)
write_cmd(0xF8)
write_data(0x73, 0x41)

# VCM DC
write_cmd(0x82)
write_data(0x12)

# CDI setting
write_cmd(0x50)
write_data(0x87)

# LUT1
write_cmd(0x20)
write_data(0, 0, 0, 26, 26, 0, 0, 1, 0, 10, 10, 0, 0, 8, 0, 14, 1, 14, 1, 16, 0, 10, 10, 0, 0, 8, 0, 4, 16, 0, 0, 5, 0, 3, 14, 0, 0, 10, 0, 35, 0, 0, 0, 1)

# LUTWW
write_cmd(0x21)
write_data(144, 26, 26, 0, 0, 1, 64, 10, 10, 0, 0, 8, 132, 14, 1, 14, 1, 16, 128, 10, 10, 0, 0, 8, 0, 4, 16, 0, 0, 5, 0, 3, 14, 0, 0, 10, 0, 35, 0, 0, 0, 1)

# LUTBW
write_cmd(0x22)
write_data(160, 26, 26, 0, 0, 1, 0, 10, 10, 0, 0, 8, 132, 14, 1, 14, 1, 16, 144, 10, 10, 0, 0, 8, 176, 4, 16, 0, 0, 5, 176, 3, 14, 0, 0, 10, 192, 35, 0, 0, 0, 1)

# LUTWB
write_cmd(0x23)
write_data(144, 26, 26, 0, 0, 1, 64, 10, 10, 0, 0, 8, 132, 14, 1, 14, 1, 16, 128, 10, 10, 0, 0, 8, 0, 4, 16, 0, 0, 5, 0, 3, 14, 0, 0, 10, 0, 35, 0, 0, 0, 1)

#LUTBB
write_cmd(0x24)
write_data(144, 26, 26, 0, 0, 1, 32, 10, 10, 0, 0, 8, 132, 14, 1, 14, 1, 16, 16, 10, 10, 0, 0, 8, 0, 4, 16, 0, 0, 5, 0, 3, 14, 0, 0, 10, 0, 35, 0, 0, 0, 1)

# Resolution
write_cmd(0x61)
write_data((WIDTH >> 8) & 0xFF, WIDTH & 0xFF, (HEIGHT >> 8) & 0xFF, HEIGHT & 0xFF)

print("Init done")

# PDRF
write_cmd(0x16)
write_data(0)

print("sending BW data")
write_cmd(0x10)
for _ in range(WIDTH * HEIGHT/8):
    write_data(0)

print("Sending RED data")
write_cmd(0x13)
for _ in range(WIDTH * HEIGHT/8):
    write_data(0xFF)

# Refresh
write_cmd(0x12)

# Power off
write_cmd(2)
write_data(0x17)

print("Program finished!!")