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- #!/usr/bin/python
- # -*- coding:utf-8 -*-
- # *****************************************************************************
- # * | File : epd5in65f.py
- # * | Author : Waveshare team
- # * | Function : Electronic paper driver
- # * | Info :
- # *----------------
- # * | This version: V1.0
- # * | Date : 2020-03-02
- # # | 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 logging
- from . import epdconfig
- import PIL
- from PIL import Image
- import io
- # Display resolution
- EPD_WIDTH = 600
- EPD_HEIGHT = 448
- logger = logging.getLogger(__name__)
- class EPD:
- def __init__(self):
- self.reset_pin = epdconfig.RST_PIN
- self.dc_pin = epdconfig.DC_PIN
- self.busy_pin = epdconfig.BUSY_PIN
- self.cs_pin = epdconfig.CS_PIN
- self.width = EPD_WIDTH
- self.height = EPD_HEIGHT
- self.BLACK = 0x000000 # 0000 BGR
- self.WHITE = 0xffffff # 0001
- self.GREEN = 0x00ff00 # 0010
- self.BLUE = 0xff0000 # 0011
- self.RED = 0x0000ff # 0100
- self.YELLOW = 0x00ffff # 0101
- self.ORANGE = 0x0080ff # 0110
- # Hardware reset
- def reset(self):
- epdconfig.digital_write(self.reset_pin, 1)
- epdconfig.delay_ms(600)
- epdconfig.digital_write(self.reset_pin, 0)
- epdconfig.delay_ms(2)
- epdconfig.digital_write(self.reset_pin, 1)
- epdconfig.delay_ms(200)
- def send_command(self, command):
- epdconfig.digital_write(self.dc_pin, 0)
- epdconfig.digital_write(self.cs_pin, 0)
- epdconfig.spi_writebyte([command])
- epdconfig.digital_write(self.cs_pin, 1)
- def send_data(self, data):
- epdconfig.digital_write(self.dc_pin, 1)
- epdconfig.digital_write(self.cs_pin, 0)
- epdconfig.spi_writebyte([data])
- epdconfig.digital_write(self.cs_pin, 1)
- def send_data_bulk(self, data):
- epdconfig.digital_write(self.dc_pin, 1)
- epdconfig.digital_write(self.cs_pin, 0)
- epdconfig.spi_writebyte2(data)
- epdconfig.digital_write(self.cs_pin, 1)
- def ReadBusyHigh(self):
- logger.debug("e-Paper busy")
- while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
- epdconfig.delay_ms(100)
- logger.debug("e-Paper busy release")
- def ReadBusyLow(self):
- logger.debug("e-Paper busy")
- while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
- epdconfig.delay_ms(100)
- logger.debug("e-Paper busy release")
- def init(self):
- if (epdconfig.module_init() != 0):
- return -1
- # EPD hardware init start
- self.reset()
- self.ReadBusyHigh()
- self.send_command(0x00)
- self.send_data(0xEF)
- self.send_data(0x08)
- self.send_command(0x01)
- self.send_data(0x37)
- self.send_data(0x00)
- self.send_data(0x23)
- self.send_data(0x23)
- self.send_command(0x03)
- self.send_data(0x00)
- self.send_command(0x06)
- self.send_data(0xC7)
- self.send_data(0xC7)
- self.send_data(0x1D)
- self.send_command(0x30)
- self.send_data(0x3c)
- self.send_command(0x41)
- self.send_data(0x00)
- self.send_command(0x50)
- self.send_data(0x37)
- self.send_command(0x60)
- self.send_data(0x22)
- self.send_command(0x61)
- self.send_data(0x02)
- self.send_data(0x58)
- self.send_data(0x01)
- self.send_data(0xC0)
- self.send_command(0xE3)
- self.send_data(0xAA)
- epdconfig.delay_ms(100)
- self.send_command(0x50)
- self.send_data(0x37)
- # EPD hardware init end
- return 0
- def getbuffer(self, image):
- # Create a pallette with the 7 colors supported by the panel
- pal_image = Image.new("P", (1,1))
- pal_image.putpalette( (0,0,0, 255,255,255, 0,255,0, 0,0,255, 255,0,0, 255,255,0, 255,128,0) + (0,0,0)*249)
- # Check if we need to rotate the image
- imwidth, imheight = image.size
- if(imwidth == self.width and imheight == self.height):
- image_temp = image
- elif(imwidth == self.height and imheight == self.width):
- image_temp = image.rotate(90, expand=True)
- else:
- logger.warning("Invalid image dimensions: %d x %d, expected %d x %d" % (imwidth, imheight, self.width, self.height))
- # Convert the soruce image to the 7 colors, dithering if needed
- image_7color = image_temp.convert("RGB").quantize(palette=pal_image)
- buf_7color = bytearray(image_7color.tobytes('raw'))
- # PIL does not support 4 bit color, so pack the 4 bits of color
- # into a single byte to transfer to the panel
- buf = [0x00] * int(self.width * self.height / 2)
- idx = 0
- for i in range(0, len(buf_7color), 2):
- buf[idx] = (buf_7color[i] << 4) + buf_7color[i+1]
- idx += 1
- return buf
- def display(self,image):
- self.send_command(0x61) #Set Resolution setting
- self.send_data(0x02)
- self.send_data(0x58)
- self.send_data(0x01)
- self.send_data(0xC0)
- self.send_command(0x10)
- self.send_data_bulk(image)
- self.send_command(0x04) #0x04
- self.ReadBusyHigh()
- self.send_command(0x12) #0x12
- self.ReadBusyHigh()
- self.send_command(0x02) #0x02
- self.ReadBusyLow()
- epdconfig.delay_ms(500)
- def Clear(self):
- self.send_command(0x61) #Set Resolution setting
- self.send_data(0x02)
- self.send_data(0x58)
- self.send_data(0x01)
- self.send_data(0xC0)
- self.send_command(0x10)
- # Set all pixels to white
- buf = [0x11] * int(self.width * self.height / 2)
- self.send_data_bulk(buf)
- self.send_command(0x04) #0x04
- self.ReadBusyHigh()
- self.send_command(0x12) #0x12
- self.ReadBusyHigh()
- self.send_command(0x02) #0x02
- self.ReadBusyLow()
- epdconfig.delay_ms(500)
- def sleep(self):
- epdconfig.delay_ms(500)
- self.send_command(0x07) # DEEP_SLEEP
- self.send_data(0XA5)
- epdconfig.digital_write(self.reset_pin, 0)
- epdconfig.delay_ms(2000)
- epdconfig.module_exit()
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