418 lines
13 KiB
Python
418 lines
13 KiB
Python
# *****************************************************************************
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# * | File : Pico_ePaper-7.5-B.py
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# * | Author : Waveshare team
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# * | Function : Electronic paper driver
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# * | Info :
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# *----------------
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# * | This version: V1.0
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# * | Date : 2021-05-27
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# # | Info : python demo
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# -----------------------------------------------------------------------------
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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from machine import Pin, SPI
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import framebuf
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import utime
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# Display resolution
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EPD_WIDTH = 800
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EPD_HEIGHT = 480
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RST_PIN = 12
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DC_PIN = 8
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CS_PIN = 9
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BUSY_PIN = 13
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class EPD_7in5_B:
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def __init__(self):
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self.reset_pin = Pin(RST_PIN, Pin.OUT)
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self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP)
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self.cs_pin = Pin(CS_PIN, Pin.OUT)
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self.width = EPD_WIDTH
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self.height = EPD_HEIGHT
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self.partFlag=1
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self.spi = SPI(1)
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self.spi.init(baudrate=4000_000)
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self.dc_pin = Pin(DC_PIN, Pin.OUT)
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self.buffer_black = bytearray(self.height * self.width // 8)
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self.buffer_red = bytearray(self.height * self.width // 8)
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self.imageblack = framebuf.FrameBuffer(self.buffer_black, self.width, self.height, framebuf.MONO_HLSB)
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self.imagered = framebuf.FrameBuffer(self.buffer_red, self.width, self.height, framebuf.MONO_HLSB)
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self.init()
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def digital_write(self, pin, value):
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pin.value(value)
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def digital_read(self, pin):
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return pin.value()
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def delay_ms(self, delaytime):
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utime.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.spi.write(bytearray(data))
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def module_exit(self):
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self.digital_write(self.reset_pin, 0)
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# Hardware reset
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def reset(self):
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self.digital_write(self.reset_pin, 1)
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self.delay_ms(200)
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self.digital_write(self.reset_pin, 0)
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self.delay_ms(2)
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self.digital_write(self.reset_pin, 1)
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self.delay_ms(200)
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def send_command(self, command):
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self.digital_write(self.dc_pin, 0)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte([command])
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self.digital_write(self.cs_pin, 1)
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def send_data(self, data):
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self.digital_write(self.dc_pin, 1)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte([data])
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self.digital_write(self.cs_pin, 1)
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def send_data1(self, buf):
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self.digital_write(self.dc_pin, 1)
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self.digital_write(self.cs_pin, 0)
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self.spi.write(bytearray(buf))
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self.digital_write(self.cs_pin, 1)
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def WaitUntilIdle(self):
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print("e-Paper busy")
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while(self.digital_read(self.busy_pin) == 0): # Wait until the busy_pin goes LOW
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self.delay_ms(20)
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self.delay_ms(20)
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print("e-Paper busy release")
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def TurnOnDisplay(self):
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self.send_command(0x12) # DISPLAY REFRESH
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self.delay_ms(100) #!!!The delay here is necessary, 200uS at least!!!
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self.WaitUntilIdle()
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def init(self):
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# EPD hardware init start
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self.reset()
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self.send_command(0x06) # btst
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self.send_data(0x17)
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self.send_data(0x17)
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self.send_data(0x28) # If an exception is displayed, try using 0x38
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self.send_data(0x17)
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# self.send_command(0x01) # POWER SETTING
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# self.send_data(0x07)
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# self.send_data(0x07) # VGH=20V,VGL=-20V
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# self.send_data(0x3f) # VDH=15V
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# self.send_data(0x3f) # VDL=-15V
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self.send_command(0x04) # POWER ON
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self.delay_ms(100)
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self.WaitUntilIdle()
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self.send_command(0X00) # PANNEL SETTING
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self.send_data(0x0F) # KW-3f KWR-2F BWROTP 0f BWOTP 1f
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self.send_command(0x61) # tres
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self.send_data(0x03) # source 800
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self.send_data(0x20)
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self.send_data(0x01) # gate 480
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self.send_data(0xE0)
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self.send_command(0X15)
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self.send_data(0x00)
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self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING
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self.send_data(0x11)
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self.send_data(0x07)
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self.send_command(0X60) # TCON SETTING
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self.send_data(0x22)
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self.send_command(0x65) # Resolution setting
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self.send_data(0x00)
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self.send_data(0x00) # 800*480
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self.send_data(0x00)
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self.send_data(0x00)
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return 0;
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def init_Fast(self):
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# EPD hardware init start
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self.reset()
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self.send_command(0X00)
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self.send_data(0x0F)
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self.send_command(0x04)
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self.delay_ms(100)
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self.WaitUntilIdle()
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self.send_command(0x06)
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self.send_data(0x27)
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self.send_data(0x27)
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self.send_data(0x18)
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self.send_data(0x17)
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self.send_command(0xE0)
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self.send_data(0x02)
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self.send_command(0xE5)
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self.send_data(0x5A)
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self.send_command(0X50)
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self.send_data(0x11)
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self.send_data(0x07)
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return 0
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def init_part(self):
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# EPD hardware init start
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self.reset()
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self.send_command(0X00)
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self.send_data(0x1F)
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self.send_command(0x04)
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self.delay_ms(100)
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self.WaitUntilIdle()
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self.send_command(0xE0)
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self.send_data(0x02)
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self.send_command(0xE5)
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self.send_data(0x6E)
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self.send_command(0X50)
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self.send_data(0xA9)
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self.send_data(0x07)
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# EPD hardware init end
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return 0
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def Clear(self):
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high = self.height
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if( self.width % 8 == 0) :
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wide = self.width // 8
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else :
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wide = self.width // 8 + 1
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self.send_command(0x10)
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for i in range(0, wide):
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self.send_data1([0xff] * high)
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self.send_command(0x13)
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for i in range(0, wide):
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self.send_data1([0x00] * high)
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self.TurnOnDisplay()
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def ClearRed(self):
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high = self.height
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if( self.width % 8 == 0) :
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wide = self.width // 8
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else :
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wide = self.width // 8 + 1
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self.send_command(0x10)
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for i in range(0, wide):
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self.send_data1([0xff] * high)
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self.send_command(0x13)
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for i in range(0, wide):
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self.send_data1([0xff] * high)
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self.TurnOnDisplay()
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def ClearBlack(self):
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high = self.height
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if( self.width % 8 == 0) :
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wide = self.width // 8
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else :
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wide = self.width // 8 + 1
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self.send_command(0x10)
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for i in range(0, wide):
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self.send_data1([0x00] * high)
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self.send_command(0x13)
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for i in range(0, wide):
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self.send_data1([0x00] * high)
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self.TurnOnDisplay()
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def display(self):
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high = self.height
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if( self.width % 8 == 0) :
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wide = self.width // 8
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else :
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wide = self.width // 8 + 1
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# send black data
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self.send_command(0x10)
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for i in range(0, wide):
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self.send_data1(self.buffer_black[(i * high) : ((i+1) * high)])
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# send red data
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self.send_command(0x13)
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for i in range(0, wide):
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self.send_data1(self.buffer_red[(i * high) : ((i+1) * high)])
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self.TurnOnDisplay()
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def display_Base_color(self, color):
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if(self.width % 8 == 0):
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Width = self.width // 8
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else:
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Width = self.width // 8 +1
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Height = self.height
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self.send_command(0x10) #Write Black and White image to RAM
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for j in range(Height):
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for i in range(Width):
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self.send_data(color)
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self.send_command(0x13) #Write Black and White image to RAM
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for j in range(Height):
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for i in range(Width):
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self.send_data(~color)
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# self.send_command(0x12)
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# self.delay_ms(100)
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# self.WaitUntilIdle()
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def display_Partial(self, Image, Xstart, Ystart, Xend, Yend):
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if((Xstart % 8 + Xend % 8 == 8 & Xstart % 8 > Xend % 8) | Xstart % 8 + Xend % 8 == 0 | (Xend - Xstart)%8 == 0):
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Xstart = Xstart // 8 * 8
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Xend = Xend // 8 * 8
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else:
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Xstart = Xstart // 8 * 8
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if Xend % 8 == 0:
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Xend = Xend // 8 * 8
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else:
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Xend = Xend // 8 * 8 + 1
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Width = (Xend - Xstart) // 8
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Height = Yend - Ystart
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# self.send_command(0x50)
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# self.send_data(0xA9)
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# self.send_data(0x07)
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self.send_command(0x91) #This command makes the display enter partial mode
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self.send_command(0x90) #resolution setting
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self.send_data (Xstart//256)
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self.send_data (Xstart%256) #x-start
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self.send_data ((Xend-1)//256)
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self.send_data ((Xend-1)%256) #x-end
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self.send_data (Ystart//256) #
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self.send_data (Ystart%256) #y-start
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self.send_data ((Yend-1)//256)
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self.send_data ((Yend-1)%256) #y-end
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self.send_data (0x01)
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if self.partFlag == 1:
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self.partFlag = 0
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self.send_command(0x10)
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for i in range(0, Width):
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self.send_data1([0xFF] * Height)
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self.send_command(0x13) #Write Black and White image to RAM
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for i in range(0, Width):
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self.send_data1(Image[(i * Height) : ((i+1) * Height)])
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self.send_command(0x12)
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self.delay_ms(100)
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self.WaitUntilIdle()
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def sleep(self):
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self.send_command(0x02) # power off
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self.WaitUntilIdle()
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self.send_command(0x07) # deep sleep
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self.send_data(0xa5)
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if __name__=='__main__':
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epd = EPD_7in5_B()
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epd.Clear()
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epd.imageblack.fill(0xff)
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epd.imagered.fill(0x00)
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epd.imageblack.text("Waveshare", 5, 10, 0x00)
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epd.imagered.text("Pico_ePaper-7.5-B", 5, 40, 0xff)
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epd.imageblack.text("Raspberry Pico", 5, 70, 0x00)
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epd.display()
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epd.delay_ms(5000)
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epd.imageblack.vline(10, 90, 60, 0x00)
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epd.imageblack.vline(120, 90, 60, 0x00)
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epd.imagered.hline(10, 90, 110, 0xff)
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epd.imagered.hline(10, 150, 110, 0xff)
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epd.imagered.line(10, 90, 120, 150, 0xff)
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epd.imagered.line(120, 90, 10, 150, 0xff)
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epd.display()
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epd.delay_ms(5000)
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epd.imageblack.rect(10, 180, 50, 80, 0x00 )
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epd.imageblack.fill_rect(70, 180, 50, 80,0x00 )
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epd.imagered.rect(10, 300, 50, 80, 0xff )
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epd.imagered.fill_rect(70, 300, 50, 80,0xff )
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epd.display()
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epd.delay_ms(5000)
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for k in range(0, 3):
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for j in range(0, 3):
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for i in range(0, 5):
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epd.imageblack.fill_rect(200+100+j*200, i*20+k*200, 100, 10, 0x00)
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for i in range(0, 5):
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epd.imagered.fill_rect(200+0+j*200, i*20+100+k*200, 100, 10, 0xff)
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epd.display()
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epd.delay_ms(5000)
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# # partial update
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# epd.init()
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# epd.imageblack.fill(0xff)
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# epd.display_Base_color(0xFF)
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# epd.init_part()
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# for i in range(0, 10):
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# epd.imageblack.fill_rect(175, 105, 10, 10, 0xff)
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# epd.imageblack.text(str(i), 177, 106, 0x00)
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# epd.display_Partial(epd.buffer_black, 0, 0, 800, 480)
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epd.init()
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epd.Clear()
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epd.delay_ms(2000)
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print("sleep")
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epd.sleep()
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