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picowidget/Pico_ePaper_2_13_v4.py
Fred Boniface abadccf612 Initial
2024-11-19 20:19:14 +00:00

720 lines
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# *****************************************************************************
# * | File : Pico_ePaper-2.13_V3.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.0
# * | Date : 2021-11-01
# # | 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.
#
from machine import Pin, SPI
import framebuf
import utime
EPD_WIDTH = 122
EPD_HEIGHT = 250
RST_PIN = 12
DC_PIN = 8
CS_PIN = 9
BUSY_PIN = 13
class EPD_2in13_V4_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)
if EPD_WIDTH % 8 == 0:
self.width = EPD_WIDTH
else :
self.width = (EPD_WIDTH // 8) * 8 + 8
self.height = EPD_HEIGHT
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()
'''
function :Change the pin state
parameter:
pin : pin
value : state
'''
def digital_write(self, pin, value):
pin.value(value)
'''
function : Read the pin state
parameter:
pin : pin
'''
def digital_read(self, pin):
return pin.value()
'''
function : The time delay function
parameter:
delaytime : ms
'''
def delay_ms(self, delaytime):
utime.sleep(delaytime / 1000.0)
'''
function : Write data to SPI
parameter:
data : data
'''
def spi_writebyte(self, data):
self.spi.write(bytearray(data))
'''
function :Hardware reset
parameter:
'''
def reset(self):
self.digital_write(self.reset_pin, 1)
self.delay_ms(20)
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(20)
'''
function :send command
parameter:
command : Command register
'''
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)
'''
function :send data
parameter:
data : Write data
'''
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 send_data1(self, buf):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi.write(bytearray(buf))
self.digital_write(self.cs_pin, 1)
'''
function :Wait until the busy_pin goes LOW
parameter:
'''
def ReadBusy(self):
print('busy')
self.delay_ms(10)
while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
self.delay_ms(10)
print('busy release')
'''
function : Turn On Display
parameter:
'''
def TurnOnDisplay(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xf7)
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
'''
function : Turn On Display Fast
parameter:
'''
def TurnOnDisplay_Fast(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xC7) # fast:0x0c, quality:0x0f, 0xcf
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
'''
function : Turn On Display Part
parameter:
'''
def TurnOnDisplayPart(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xff) # fast:0x0c, quality:0x0f, 0xcf
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
'''
function : Setting the display window
parameter:
Xstart : X-axis starting position
Ystart : Y-axis starting position
Xend : End position of X-axis
Yend : End position of Y-axis
'''
def SetWindows(self, Xstart, Ystart, Xend, Yend):
self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
self.send_data((Xstart >> 3) & 0xFF)
self.send_data((Xend >> 3) & 0xFF)
self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
self.send_data(Ystart & 0xFF)
self.send_data((Ystart >> 8) & 0xFF)
self.send_data(Yend & 0xFF)
self.send_data((Yend >> 8) & 0xFF)
'''
function : Set Cursor
parameter:
Xstart : X-axis starting position
Ystart : Y-axis starting position
'''
def SetCursor(self, Xstart, Ystart):
self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
self.send_data(Xstart & 0xFF)
self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
self.send_data(Ystart & 0xFF)
self.send_data((Ystart >> 8) & 0xFF)
'''
function : Initialize the e-Paper register
parameter:
'''
def init(self):
print('init')
self.reset()
self.delay_ms(100)
self.ReadBusy()
self.send_command(0x12) # SWRESET
self.ReadBusy()
self.send_command(0x01) # Driver output control
self.send_data(0xf9)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x11) #data entry mode
self.send_data(0x03)
self.SetWindows(0, 0, self.width-1, self.height-1)
self.SetCursor(0, 0)
self.send_command(0x3C) # BorderWaveform
self.send_data(0x05)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.send_command(0x18) # Read built-in temperature sensor
self.send_data(0x80)
self.ReadBusy()
'''
function : Initialize the e-Paper fast register
parameter:
'''
def init_fast(self):
print('init_fast')
self.reset()
self.delay_ms(100)
self.send_command(0x12) #SWRESET
self.ReadBusy()
self.send_command(0x18) # Read built-in temperature sensor
self.send_command(0x80)
self.send_command(0x11) # data entry mode
self.send_data(0x03)
self.SetWindow(0, 0, self.width-1, self.height-1)
self.SetCursor(0, 0)
self.send_command(0x22) # Load temperature value
self.send_data(0xB1)
self.send_command(0x20)
self.ReadBusy()
self.send_command(0x1A) # Write to temperature register
self.send_data(0x64)
self.send_data(0x00)
self.send_command(0x22) # Load temperature value
self.send_data(0x91)
self.send_command(0x20)
self.ReadBusy()
return 0
'''
function : Clear screen
parameter:
'''
def Clear(self):
self.send_command(0x24)
self.send_data1([0xff] * self.height * int(self.width / 8))
self.TurnOnDisplay()
'''
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
image : Image data
'''
def display(self, image):
self.send_command(0x24)
self.send_data1(image)
self.TurnOnDisplay()
def display_fast(self, image):
self.send_command(0x24)
self.send_data2(image)
self.TurnOnDisplay_Fast()
'''
function : Refresh a base image
parameter:
image : Image data
'''
def Display_Base(self, image):
self.send_command(0x24)
self.send_data1(image)
self.send_command(0x26)
self.send_data1(image)
self.TurnOnDisplay()
'''
function : Sends the image buffer in RAM to e-Paper and partial refresh
parameter:
image : Image data
'''
def displayPartial(self, image):
self.reset()
self.send_command(0x3C) # BorderWavefrom
self.send_data(0x80)
self.send_command(0x01) # Driver output control
self.send_data(0xF9)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x11) # data entry mode
self.send_data(0x03)
self.SetWindows(0, 0, self.width-1, self.height-1)
self.SetCursor(0, 0)
self.send_command(0x24) # WRITE_RAM
self.send_data1(image)
self.TurnOnDisplayPart()
'''
function : Enter sleep mode
parameter:
'''
def sleep(self):
self.send_command(0x10) #enter deep sleep
self.send_data(0x01)
self.delay_ms(100)
class EPD_2in13_V4_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)
if EPD_WIDTH % 8 == 0:
self.width = EPD_WIDTH
else :
self.width = (EPD_WIDTH // 8) * 8 + 8
self.height = EPD_HEIGHT
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 reset(self):
self.digital_write(self.reset_pin, 1)
self.delay_ms(20)
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(20)
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 send_data1(self, buf):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi.write(bytearray(buf))
self.digital_write(self.cs_pin, 1)
def ReadBusy(self):
print('busy')
self.delay_ms(10)
while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
self.delay_ms(10)
print('busy release')
'''
function : Turn On Display
parameter:
'''
def TurnOnDisplay(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xf7)
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
'''
function : Turn On Display Fast
parameter:
'''
def TurnOnDisplay_Fast(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xC7) # fast:0x0c, quality:0x0f, 0xcf
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
'''
function : Turn On Display Part
parameter:
'''
def TurnOnDisplayPart(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xff) # fast:0x0c, quality:0x0f, 0xcf
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
'''
function : Setting the display window
parameter:
Xstart : X-axis starting position
Ystart : Y-axis starting position
Xend : End position of X-axis
Yend : End position of Y-axis
'''
def SetWindows(self, Xstart, Ystart, Xend, Yend):
self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
self.send_data((Xstart >> 3) & 0xFF)
self.send_data((Xend >> 3) & 0xFF)
self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
self.send_data(Ystart & 0xFF)
self.send_data((Ystart >> 8) & 0xFF)
self.send_data(Yend & 0xFF)
self.send_data((Yend >> 8) & 0xFF)
'''
function : Set Cursor
parameter:
Xstart : X-axis starting position
Ystart : Y-axis starting position
'''
def SetCursor(self, Xstart, Ystart):
self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
self.send_data(Xstart & 0xFF)
self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
self.send_data(Ystart & 0xFF)
self.send_data((Ystart >> 8) & 0xFF)
'''
function : Initialize the e-Paper register
parameter:
'''
def init(self):
print('init')
self.reset()
self.delay_ms(100)
self.ReadBusy()
self.send_command(0x12) # SWRESET
self.ReadBusy()
self.send_command(0x01) # Driver output control
self.send_data(0xf9)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x11) #data entry mode
self.send_data(0x07)
self.SetWindows(0, 0, self.width-1, self.height-1)
self.SetCursor(0, 0)
self.send_command(0x3C) # BorderWaveform
self.send_data(0x05)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.send_command(0x18) # Read built-in temperature sensor
self.send_data(0x80)
self.ReadBusy()
'''
function : Initialize the e-Paper fast register
parameter:
'''
def init_fast(self):
print('init_fast')
self.reset()
self.delay_ms(100)
self.send_command(0x12) #SWRESET
self.ReadBusy()
self.send_command(0x18) # Read built-in temperature sensor
self.send_command(0x80)
self.send_command(0x11) # data entry mode
self.send_data(0x07)
self.SetWindow(0, 0, self.width-1, self.height-1)
self.SetCursor(0, 0)
self.send_command(0x22) # Load temperature value
self.send_data(0xB1)
self.send_command(0x20)
self.ReadBusy()
self.send_command(0x1A) # Write to temperature register
self.send_data(0x64)
self.send_data(0x00)
self.send_command(0x22) # Load temperature value
self.send_data(0x91)
self.send_command(0x20)
self.ReadBusy()
return 0
'''
function : Clear screen
parameter:
'''
def Clear(self):
self.send_command(0x24)
self.send_data1([0xff] * self.height * int(self.width / 8))
self.TurnOnDisplay()
'''
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
image : Image data
'''
def display(self, image):
self.send_command(0x24)
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_fast(self, image):
self.send_command(0x24)
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_Fast()
'''
function : Refresh a base image
parameter:
image : Image data
'''
def Display_Base(self, image):
self.send_command(0x24)
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)
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()
'''
function : Sends the image buffer in RAM to e-Paper and partial refresh
parameter:
image : Image data
'''
def displayPartial(self, image):
self.reset()
self.send_command(0x3C) # BorderWavefrom
self.send_data(0x80)
self.send_command(0x01) # Driver output control
self.send_data(0xF9)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x11) # data entry mode
self.send_data(0x07)
self.SetWindows(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.TurnOnDisplayPart()
'''
function : Enter sleep mode
parameter:
'''
def sleep(self):
self.send_command(0x10) #enter deep sleep
self.send_data(0x01)
self.delay_ms(100)
if __name__=='__main__':
epd = EPD_2in13_V4_Landscape()
epd.Clear()
epd.fill(0xff)
epd.text("Waveshare", 0, 10, 0x00)
epd.text("ePaper-2.13_V4", 0, 20, 0x00)
epd.text("Raspberry Pico", 0, 30, 0x00)
epd.text("Hello World", 0, 40, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.vline(5, 55, 60, 0x00)
epd.vline(100, 55, 60, 0x00)
epd.hline(5, 55, 95, 0x00)
epd.hline(5, 115, 95, 0x00)
epd.line(5, 55, 100, 115, 0x00)
epd.line(100, 55, 5, 115, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.rect(130, 10, 40, 80, 0x00)
epd.fill_rect(190, 10, 40, 80, 0x00)
epd.Display_Base(epd.buffer)
epd.delay_ms(2000)
epd.init()
for i in range(0, 10):
epd.fill_rect(175, 105, 10, 10, 0xff)
epd.text(str(i), 177, 106, 0x00)
epd.displayPartial(epd.buffer)
print("sleep")
epd.init()
epd.Clear()
epd.delay_ms(2000)
epd.sleep()
epd = EPD_2in13_V4_Portrait()
epd.Clear()
epd.fill(0xff)
epd.text("Waveshare", 0, 10, 0x00)
epd.text("ePaper-2.13_V4", 0, 30, 0x00)
epd.text("Raspberry Pico", 0, 50, 0x00)
epd.text("Hello World", 0, 70, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.vline(10, 90, 60, 0x00)
epd.vline(90, 90, 60, 0x00)
epd.hline(10, 90, 80, 0x00)
epd.hline(10, 150, 80, 0x00)
epd.line(10, 90, 90, 150, 0x00)
epd.line(90, 90, 10, 150, 0x00)
epd.display(epd.buffer)
epd.delay_ms(2000)
epd.rect(10, 180, 50, 40, 0x00)
epd.fill_rect(60, 180, 50, 40, 0x00)
epd.Display_Base(epd.buffer)
epd.delay_ms(2000)
epd.init()
for i in range(0, 10):
epd.fill_rect(40, 230, 40, 10, 0xff)
epd.text(str(i), 60, 230, 0x00)
epd.displayPartial(epd.buffer)
print("sleep")
epd.init()
epd.Clear()
epd.delay_ms(2000)
epd.sleep()
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