502 lines
16 KiB
Python
502 lines
16 KiB
Python
# *****************************************************************************
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# * | File : Pico_ePaper-7.5.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:
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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.black = 0x00
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self.white = 0xff
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self.darkgray = 0xaa
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self.grayish = 0x55
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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_1Gray = bytearray(self.height * self.width // 8)
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self.buffer_4Gray = bytearray(self.height * self.width // 4)
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self.image1Gray = framebuf.FrameBuffer(self.buffer_1Gray, self.width, self.height, framebuf.MONO_HLSB)
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self.image4Gray = framebuf.FrameBuffer(self.buffer_4Gray, self.width, self.height, framebuf.GS2_HMSB)
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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(50)
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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(50)
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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.send_command(0x71)
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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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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(0x28) #VDH=15V
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self.send_data(0x17) #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(0x1F) #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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# If the screen appears gray, use the annotated initialization command
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self.send_command(0X50)
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self.send_data(0x10)
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self.send_data(0x07)
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# self.send_command(0X50)
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# self.send_data(0x10)
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# self.send_data(0x17)
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# self.send_command(0X52)
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# self.send_data(0x03)
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self.send_command(0X60) #TCON SETTING
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self.send_data(0x22)
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# EPD hardware init end
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return 0
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def init_fast(self):
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self.reset()
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self.send_command(0X00) #PANNEL SETTING
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self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
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# If the screen appears gray, use the annotated initialization command
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self.send_command(0X50)
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self.send_data(0x10)
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self.send_data(0x07)
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# self.send_command(0X50)
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# self.send_data(0x10)
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# self.send_data(0x17)
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# self.send_command(0X52)
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# self.send_data(0x03)
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self.send_command(0x04) #POWER ON
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self.delay_ms(100)
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self.WaitUntilIdle() #waiting for the electronic paper IC to release the idle signal
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#Enhanced display drive(Add 0x06 command)
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self.send_command(0x06) #Booster Soft Start
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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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# EPD hardware init end
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return 0
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def init_part(self):
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self.reset()
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self.send_command(0X00) #PANNEL SETTING
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self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
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self.send_command(0x04) #POWER ON
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self.delay_ms(100)
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self.WaitUntilIdle() #waiting for the electronic paper IC to release the idle signal
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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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# EPD hardware init end
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return 0
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# The feature will only be available on screens sold after 24/10/23
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def init_4Gray(self):
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# EPD hardware init start
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self.reset()
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self.send_command(0X00) #PANNEL SETTING
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self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
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self.send_command(0X50)
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self.send_data(0x10)
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self.send_data(0x07)
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self.send_command(0x04) #POWER ON
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self.delay_ms(100)
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self.WaitUntilIdle() #waiting for the electronic paper IC to release the idle signal
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#Enhanced display drive(Add 0x06 command)
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self.send_command(0x06) #Booster Soft Start
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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(0x5F)
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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 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([0xff] * high)
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self.TurnOnDisplay()
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def display(self,Image):
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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(Image[(i * high) : ((i+1) * high)])
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self.send_command(0x13)
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for j in range(high):
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for i in range(wide):
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self.send_data(~Image[i + j * wide])
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self.TurnOnDisplay()
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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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self.send_command(0x13)
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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(~Image[i + j * Width])
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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_4Gray(self, image):
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self.send_command(0x10)
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for i in range(0, 48000):
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temp3=0
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for j in range(0, 2):
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temp1 = image[i*2+j]
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for k in range(0, 2):
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temp2 = temp1&0x03
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if(temp2 == 0x03):
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temp3 |= 0x01 # white
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elif(temp2 == 0x00):
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temp3 |= 0x00 # black
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elif(temp2 == 0x02):
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temp3 |= 0x01 # gray1
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else: # 0x01
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temp3 |= 0x00 # gray2
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temp3 <<= 1
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temp1 >>= 2
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temp2 = temp1&0x03
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if(temp2 == 0x03): # white
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temp3 |= 0x01
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elif(temp2 == 0x00): # black
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temp3 |= 0x00
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elif(temp2 == 0x02):
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temp3 |= 0x01 # gray1
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else: # 0x01
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temp3 |= 0x00 # gray2
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if (( j!=1 ) | ( k!=1 )):
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temp3 <<= 1
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temp1 >>= 2
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self.send_data(temp3)
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self.send_command(0x13)
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for i in range(0, 48000):
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temp3=0
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for j in range(0, 2):
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temp1 = image[i*2+j]
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for k in range(0, 2):
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temp2 = temp1&0x03
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if(temp2 == 0x03):
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temp3 |= 0x01 # white
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elif(temp2 == 0x00):
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temp3 |= 0x00 # black
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elif(temp2 == 0x02):
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temp3 |= 0x00 # gray1
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else: # 0x01
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temp3 |= 0x01 # gray2
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temp3 <<= 1
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temp1 >>= 2
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temp2 = temp1&0x03
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if(temp2 == 0x03): # white
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temp3 |= 0x01
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elif(temp2 == 0x00): # black
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temp3 |= 0x00
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elif(temp2 == 0x02):
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temp3 |= 0x00 # gray1
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else: # 0x01
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temp3 |= 0x01 # gray2
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if (( j!=1 ) | ( k!=1 )):
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temp3 <<= 1
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temp1 >>= 2
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self.send_data(temp3)
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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(0x50)
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self.send_data(0XF7)
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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()
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epd.Clear()
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epd.image1Gray.fill(0xFF)
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epd.image1Gray.text("Waveshare", 5, 10, 0x00)
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epd.image1Gray.text("Pico_ePaper-7.5", 5, 40, 0x00)
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epd.image1Gray.text("Raspberry Pico", 5, 70, 0x00)
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epd.display(epd.buffer_1Gray)
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epd.delay_ms(5000)
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epd.image1Gray.vline(10, 90, 60, 0x00)
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epd.image1Gray.vline(120, 90, 60, 0x00)
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epd.image1Gray.hline(10, 90, 110, 0x00)
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epd.image1Gray.hline(10, 150, 110, 0x00)
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epd.image1Gray.line(10, 90, 120, 150, 0x00)
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epd.image1Gray.line(120, 90, 10, 150, 0x00)
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epd.display(epd.buffer_1Gray)
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epd.delay_ms(5000)
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epd.image1Gray.rect(10, 180, 50, 80, 0x00)
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epd.image1Gray.fill_rect(70, 180, 50, 80, 0x00)
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epd.display(epd.buffer_1Gray)
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epd.delay_ms(5000)
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epd.image1Gray.fill_rect(250, 150, 480, 20, 0x00)
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epd.image1Gray.fill_rect(250, 310, 480, 20, 0x00)
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epd.image1Gray.fill_rect(400, 0, 20, 480, 0x00)
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epd.image1Gray.fill_rect(560, 0, 20, 480, 0x00)
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for j in range(0, 3):
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for i in range(0, 15):
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epd.image1Gray.line(270+j*160+i, 20+j*160, 375+j*160+i, 140+j*160, 0x00)
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for i in range(0, 15):
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epd.image1Gray.line(375+j*160+i, 20+j*160, 270+j*160+i, 140+j*160, 0x00)
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for i in range(0, 15):
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epd.image1Gray.line(270+j*160, 20+j*160+i, 390+j*160, 125+j*160+i, 0x00)
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for i in range(0, 15):
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epd.image1Gray.line(270+j*160, 125+j*160+i, 390+j*160, 20+j*160+i, 0x00)
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epd.image1Gray.fill_rect(270, 190, 100, 100, 0x00)
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epd.image1Gray.fill_rect(270, 350, 100, 100, 0x00)
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epd.display(epd.buffer_1Gray)
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epd.delay_ms(5000)
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# epd.init_part()
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# for i in range(0, 10):
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# epd.image1Gray.fill_rect(40, 260, 40, 10, 0x00)
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# epd.image1Gray.text(str(i), 60, 260, 0xFF)
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# epd.display_Partial(epd.buffer_1Gray, 0, 0, 800, 480)
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# # The feature will only be available on screens sold after 24/10/23
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# print("Four grayscale refresh")
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# epd.init_4Gray()
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# epd.image4Gray.fill_rect(150, 10, 250, 30, epd.black)
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# epd.image4Gray.text('GRAY1 with black background',155, 21, epd.white)
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# epd.image4Gray.text('GRAY2 with white background',155, 51, epd.grayish)
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# epd.image4Gray.text('GRAY3 with white background',155, 81, epd.darkgray)
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# epd.image4Gray.text('GRAY4 with white background',155, 111, epd.black)
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# epd.display_4Gray(epd.buffer_4Gray)
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# epd.delay_ms(5000)
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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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