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ePaper.py
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ePaper.py
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# *****************************************************************************
# * | File : ePaper.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.0
# * | Date : 2021-03-16
# # | Info : python demo
# -----------------------------------------------------------------------------
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
import framebuf
import utime
from machine import Pin, SPI
# Display resolution
EPD_WIDTH = 128
EPD_HEIGHT = 296
RST_PIN = 12
DC_PIN = 8
CS_PIN = 9
BUSY_PIN = 13
WF_PARTIAL_2IN9 = [
0x0, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x80, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x40, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0A, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1,
0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x0, 0x0, 0x0,
0x22, 0x17, 0x41, 0xB0, 0x32, 0x36,
]
class EPD_2in9_Portrait(framebuf.FrameBuffer):
def __init__(self):
self.reset_pin = Pin(RST_PIN, Pin.OUT)
self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP)
self.cs_pin = Pin(CS_PIN, Pin.OUT)
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
self.lut = WF_PARTIAL_2IN9
self.spi = SPI(1)
self.spi.init(baudrate=4000_000)
self.dc_pin = Pin(DC_PIN, Pin.OUT)
self.buffer = bytearray(self.height * self.width // 8)
super().__init__(self.buffer, self.width, self.height, framebuf.MONO_HLSB)
self.init()
def digital_write(self, pin, value):
pin.value(value)
def digital_read(self, pin):
return pin.value()
def delay_ms(self, delaytime):
utime.sleep(delaytime / 1000.0)
def spi_writebyte(self, data):
self.spi.write(bytearray(data))
def module_exit(self):
self.digital_write(self.reset_pin, 0)
# Hardware reset
def reset(self):
self.digital_write(self.reset_pin, 1)
self.delay_ms(50)
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(50)
def send_command(self, command):
self.digital_write(self.dc_pin, 0)
self.digital_write(self.cs_pin, 0)
self.spi_writebyte([command])
self.digital_write(self.cs_pin, 1)
def send_data(self, data):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi_writebyte([data])
self.digital_write(self.cs_pin, 1)
def ReadBusy(self):
print("e-Paper busy")
while (self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
self.delay_ms(10)
print("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2
self.send_data(0xF7)
self.send_command(0x20) # MASTER_ACTIVATION
self.ReadBusy()
def TurnOnDisplay_Partial(self):
self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2
self.send_data(0x0F)
self.send_command(0x20) # MASTER_ACTIVATION
self.ReadBusy()
def SendLut(self):
self.send_command(0x32)
for i in range(0, 153):
self.send_data(self.lut[i])
self.ReadBusy()
def SetWindow(self, x_start, y_start, x_end, y_end):
self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
# x point must be the multiple of 8 or the last 3 bits will be ignored
self.send_data((x_start >> 3) & 0xFF)
self.send_data((x_end >> 3) & 0xFF)
self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
self.send_data(y_start & 0xFF)
self.send_data((y_start >> 8) & 0xFF)
self.send_data(y_end & 0xFF)
self.send_data((y_end >> 8) & 0xFF)
def SetCursor(self, x, y):
self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
self.send_data(x & 0xFF)
self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
self.send_data(y & 0xFF)
self.send_data((y >> 8) & 0xFF)
self.ReadBusy()
def init(self):
# EPD hardware init start
self.reset()
self.ReadBusy()
self.send_command(0x12) # SWRESET
self.ReadBusy()
self.send_command(0x01) # Driver output control
self.send_data(0x27)
self.send_data(0x01)
self.send_data(0x00)
self.send_command(0x11) # data entry mode
self.send_data(0x03)
self.SetWindow(0, 0, self.width - 1, self.height - 1)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.SetCursor(0, 0)
self.ReadBusy()
# EPD hardware init end
return 0
def display(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
for j in range(0, self.height):
for i in range(0, int(self.width / 8)):
self.send_data(image[i + j * int(self.width / 8)])
self.TurnOnDisplay()
def display_Img(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
for j in range(0, self.height):
for i in range(0, int(self.width / 8)):
self.send_data(image[i + j * int(self.width / 8)])
self.TurnOnDisplay()
def display_Base(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
for j in range(0, self.height):
for i in range(0, int(self.width / 8)):
self.send_data(image[i + j * int(self.width / 8)])
self.send_command(0x26) # WRITE_RAM
for j in range(0, self.height):
for i in range(0, int(self.width / 8)):
self.send_data(image[i + j * int(self.width / 8)])
self.TurnOnDisplay()
def display_Partial(self, image):
if (image == None):
return
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(2)
self.SendLut()
self.send_command(0x37)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x40)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x3C) # BorderWavefrom
self.send_data(0x80)
self.send_command(0x22)
self.send_data(0xC0)
self.send_command(0x20)
self.ReadBusy()
self.SetWindow(0, 0, self.width - 1, self.height - 1)
self.SetCursor(0, 0)
self.send_command(0x24) # WRITE_RAM
for j in range(0, self.height):
for i in range(0, int(self.width / 8)):
self.send_data(image[i + j * int(self.width / 8)])
self.TurnOnDisplay_Partial()
def Clear(self, color):
self.send_command(0x24) # WRITE_RAM
for j in range(0, self.height):
for i in range(0, int(self.width / 8)):
self.send_data(color)
self.TurnOnDisplay()
def sleep(self):
self.send_command(0x10) # DEEP_SLEEP_MODE
self.send_data(0x01)
self.delay_ms(2000)
self.module_exit()
class EPD_2in9_Landscape(framebuf.FrameBuffer):
def __init__(self):
self.reset_pin = Pin(RST_PIN, Pin.OUT)
self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP)
self.cs_pin = Pin(CS_PIN, Pin.OUT)
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
self.lut = WF_PARTIAL_2IN9
self.spi = SPI(1)
self.spi.init(baudrate=4000_000)
self.dc_pin = Pin(DC_PIN, Pin.OUT)
self.buffer = bytearray(self.height * self.width // 8)
super().__init__(self.buffer, self.height, self.width, framebuf.MONO_VLSB)
self.init()
def digital_write(self, pin, value):
pin.value(value)
def digital_read(self, pin):
return pin.value()
def delay_ms(self, delaytime):
utime.sleep(delaytime / 1000.0)
def spi_writebyte(self, data):
self.spi.write(bytearray(data))
def module_exit(self):
self.digital_write(self.reset_pin, 0)
# Hardware reset
def reset(self):
self.digital_write(self.reset_pin, 1)
self.delay_ms(50)
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(50)
def send_command(self, command):
self.digital_write(self.dc_pin, 0)
self.digital_write(self.cs_pin, 0)
self.spi_writebyte([command])
self.digital_write(self.cs_pin, 1)
def send_data(self, data):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi_writebyte([data])
self.digital_write(self.cs_pin, 1)
def ReadBusy(self):
print("e-Paper busy")
while (self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
self.delay_ms(10)
print("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2
self.send_data(0xF7)
self.send_command(0x20) # MASTER_ACTIVATION
self.ReadBusy()
def TurnOnDisplay_Partial(self):
self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2
self.send_data(0x0F)
self.send_command(0x20) # MASTER_ACTIVATION
self.ReadBusy()
def SendLut(self):
self.send_command(0x32)
for i in range(0, 153):
self.send_data(self.lut[i])
self.ReadBusy()
def SetWindow(self, x_start, y_start, x_end, y_end):
self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
# x point must be the multiple of 8 or the last 3 bits will be ignored
self.send_data((x_start >> 3) & 0xFF)
self.send_data((x_end >> 3) & 0xFF)
self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
self.send_data(y_start & 0xFF)
self.send_data((y_start >> 8) & 0xFF)
self.send_data(y_end & 0xFF)
self.send_data((y_end >> 8) & 0xFF)
def SetCursor(self, x, y):
self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
self.send_data(x & 0xFF)
self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
self.send_data(y & 0xFF)
self.send_data((y >> 8) & 0xFF)
self.ReadBusy()
def init(self):
# EPD hardware init start
self.reset()
self.ReadBusy()
self.send_command(0x12) # SWRESET
self.ReadBusy()
self.send_command(0x01) # Driver output control
self.send_data(0x27)
self.send_data(0x01)
self.send_data(0x00)
self.send_command(0x11) # data entry mode
self.send_data(0x07)
self.SetWindow(0, 0, self.width - 1, self.height - 1)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.SetCursor(0, 0)
self.ReadBusy()
# EPD hardware init end
return 0
def display(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
for j in range(int(self.width / 8) - 1, -1, -1):
for i in range(0, self.height):
self.send_data(image[i + j * self.height])
self.TurnOnDisplay()
def display_Base(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
for j in range(int(self.width / 8) - 1, -1, -1):
for i in range(0, self.height):
self.send_data(image[i + j * self.height])
self.send_command(0x26) # WRITE_RAM
for j in range(int(self.width / 8) - 1, -1, -1):
for i in range(0, self.height):
self.send_data(image[i + j * self.height])
self.TurnOnDisplay()
def display_Partial(self, image):
if (image == None):
return
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(2)
self.SendLut()
self.send_command(0x37)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x40)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x3C) # BorderWavefrom
self.send_data(0x80)
self.send_command(0x22)
self.send_data(0xC0)
self.send_command(0x20)
self.ReadBusy()
self.SetWindow(0, 0, self.width - 1, self.height - 1)
self.SetCursor(0, 0)
self.send_command(0x24) # WRITE_RAM
for j in range(int(self.width / 8) - 1, -1, -1):
for i in range(0, self.height):
self.send_data(image[i + j * self.height])
self.TurnOnDisplay_Partial()
def Clear(self, color):
self.send_command(0x24) # WRITE_RAM
for j in range(int(self.width / 8) - 1, -1, -1):
for i in range(0, self.height):
self.send_data(color)
self.TurnOnDisplay()
def sleep(self):
self.send_command(0x10) # DEEP_SLEEP_MODE
self.send_data(0x01)
self.delay_ms(2000)
self.module_exit()
def draw():
# Landscape
epd = EPD_2in9_Landscape()
epd.Clear(0xff)
epd.fill(0xff)
epd.text("Waveshare", 5, 10, 0x00)
epd.text("Pico_ePaper-2.9", 5, 20, 0x00)
epd.text("Raspberry Pico", 5, 30, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.vline(10, 40, 60, 0x00)
epd.vline(120, 40, 60, 0x00)
epd.hline(10, 40, 110, 0x00)
epd.hline(10, 100, 110, 0x00)
epd.line(10, 40, 120, 100, 0x00)
epd.line(120, 40, 10, 100, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.rect(150, 5, 50, 55, 0x00)
epd.fill_rect(150, 65, 50, 115, 0x00)
epd.display_Base(epd.buffer)
epd.delay_ms(2000)
for i in range(0, 10):
epd.fill_rect(220, 60, 10, 10, 0xff)
epd.text(str(i), 222, 62, 0x00)
epd.display_Partial(epd.buffer)
# Portrait
epd = EPD_2in9_Portrait()
epd.Clear(0xff)
epd.fill(0xff)
epd.text("Waveshare", 5, 10, 0x00)
epd.text("Pico_ePaper-2.9", 5, 40, 0x00)
epd.text("Raspberry Pico", 5, 70, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.vline(10, 90, 60, 0x00)
epd.vline(120, 90, 60, 0x00)
epd.hline(10, 90, 110, 0x00)
epd.hline(10, 150, 110, 0x00)
epd.line(10, 90, 120, 150, 0x00)
epd.line(120, 90, 10, 150, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.rect(10, 180, 50, 80, 0x00)
epd.fill_rect(70, 180, 50, 80, 0x00)
epd.display_Base(epd.buffer)
epd.delay_ms(2000)
for i in range(0, 10):
epd.fill_rect(40, 270, 40, 10, 0xff)
epd.text(str(i), 60, 270, 0x00)
epd.display_Partial(epd.buffer)
epd.init()
epd.Clear(0xff)
epd.delay_ms(2000)
print("sleep")
epd.sleep()
if __name__ == '__main__':
draw()