add 2in13_V3 example code (RPi)

This commit is contained in:
SSYYL 2021-11-01 15:36:43 +08:00
parent c1974d4cde
commit 9c097b5cc3
6 changed files with 512 additions and 83 deletions

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#!/usr/bin/python
# -*- coding:utf-8 -*-
import sys
import os
picdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'pic')
libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
if os.path.exists(libdir):
sys.path.append(libdir)
import logging
from waveshare_epd import epd2in13_V3
import time
from PIL import Image,ImageDraw,ImageFont
import traceback
logging.basicConfig(level=logging.DEBUG)
try:
logging.info("epd2in13_V3 Demo")
epd = epd2in13_V3.EPD()
logging.info("init and Clear")
epd.init()
epd.Clear(0xFF)
# Drawing on the image
font15 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 15)
font24 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 24)
logging.info("1.Drawing on the image...")
image = Image.new('1', (epd.height, epd.width), 255) # 255: clear the frame
draw = ImageDraw.Draw(image)
draw.rectangle([(0,0),(50,50)],outline = 0)
draw.rectangle([(55,0),(100,50)],fill = 0)
draw.line([(0,0),(50,50)], fill = 0,width = 1)
draw.line([(0,50),(50,0)], fill = 0,width = 1)
draw.chord((10, 60, 50, 100), 0, 360, fill = 0)
draw.ellipse((55, 60, 95, 100), outline = 0)
draw.pieslice((55, 60, 95, 100), 90, 180, outline = 0)
draw.pieslice((55, 60, 95, 100), 270, 360, fill = 0)
draw.polygon([(110,0),(110,50),(150,25)],outline = 0)
draw.polygon([(190,0),(190,50),(150,25)],fill = 0)
draw.text((120, 60), 'e-Paper demo', font = font15, fill = 0)
draw.text((110, 90), u'微雪电子', font = font24, fill = 0)
# image = image.rotate(180) # rotate
epd.display(epd.getbuffer(image))
time.sleep(2)
# read bmp file
logging.info("2.read bmp file...")
image = Image.open(os.path.join(picdir, '2in13.bmp'))
epd.display(epd.getbuffer(image))
time.sleep(2)
# read bmp file on window
logging.info("3.read bmp file on window...")
# epd.Clear(0xFF)
image1 = Image.new('1', (epd.height, epd.width), 255) # 255: clear the frame
bmp = Image.open(os.path.join(picdir, '100x100.bmp'))
image1.paste(bmp, (2,2))
epd.display(epd.getbuffer(image1))
time.sleep(2)
# # partial update
logging.info("4.show time...")
time_image = Image.new('1', (epd.height, epd.width), 255)
time_draw = ImageDraw.Draw(time_image)
epd.displayPartBaseImage(epd.getbuffer(time_image))
num = 0
while (True):
time_draw.rectangle((120, 80, 220, 105), fill = 255)
time_draw.text((120, 80), time.strftime('%H:%M:%S'), font = font24, fill = 0)
epd.displayPartial(epd.getbuffer(time_image))
num = num + 1
if(num == 10):
break
logging.info("Clear...")
epd.init()
epd.Clear(0xFF)
logging.info("Goto Sleep...")
epd.sleep()
except IOError as e:
logging.info(e)
except KeyboardInterrupt:
logging.info("ctrl + c:")
epd2in13_V3.epdconfig.module_exit()
exit()

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# *****************************************************************************
# * | File : epd2in13_V3.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.1
# * | Date : 2021-10-30
# # | 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 numpy as np
# Display resolution
EPD_WIDTH = 122
EPD_HEIGHT = 250
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
lut_partial_update= [
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,
0x14,0x0,0x0,0x0,0x0,0x0,0x0,
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,
0x22,0x17,0x41,0x00,0x32,0x36,
]
lut_full_update = [
0x80, 0x4A, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x40, 0x4A, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x80, 0x4A, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x40, 0x4A, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xF, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xF, 0x0, 0x0, 0xF, 0x0, 0x0, 0x2,
0xF, 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,
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x0, 0x0, 0x0,
0x22, 0x17, 0x41, 0x0, 0x32, 0x36,
]
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(20)
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(20)
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 ReadBusy(self):
logger.debug("e-Paper busy")
while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
epdconfig.delay_ms(10)
logger.debug("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xC7)
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
def TurnOnDisplayPart(self):
self.send_command(0x22) # Display Update Control
self.send_data(0x0f) # fast:0x0c, quality:0x0f, 0xcf
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
def Lut(self, lut):
self.send_command(0x32)
for i in range(0, 153):
self.send_data(lut[i])
self.ReadBusy()
def SetLut(self, lut):
self.Lut(lut)
self.send_command(0x3f)
self.send_data(lut[153])
self.send_command(0x03); # gate voltage
self.send_data(lut[154])
self.send_command(0x04); # source voltage
self.send_data(lut[155]) # VSH
self.send_data(lut[156]) # VSH2
self.send_data(lut[157]) # VSL
self.send_command(0x2c); # VCOM
self.send_data(lut[158])
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
# x point must be the multiple of 8 or the last 3 bits will be ignored
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)
def init(self):
if (epdconfig.module_init() != 0):
return -1
# 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(0xf9)
self.send_data(0x00)
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.SetCursor(0, 0)
self.send_command(0x3c)
self.send_data(0x05)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.send_command(0x18)
self.send_data(0x80)
self.ReadBusy()
self.SetLut(self.lut_full_update)
return 0
def getbuffer(self, image):
img = image
imwidth, imheight = img.size
if(imwidth == self.width and imheight == self.height):
img = img.convert('1')
elif(imwidth == self.height and imheight == self.width):
# image has correct dimensions, but needs to be rotated
img = img.rotate(90, expand=True).convert('1')
else:
logger.warning("Wrong image dimensions: must be " + str(self.width) + "x" + str(self.height))
# return a blank buffer
return [0x00] * (int(self.width/8) * self.height)
buf = bytearray(img.tobytes('raw'))
return buf
def display(self, image):
if self.width%8 == 0:
linewidth = int(self.width/8)
else:
linewidth = int(self.width/8) + 1
self.send_command(0x24)
for j in range(0, self.height):
for i in range(0, linewidth):
self.send_data(image[i + j * linewidth])
self.TurnOnDisplay()
def displayPartial(self, image):
if self.width%8 == 0:
linewidth = int(self.width/8)
else:
linewidth = int(self.width/8) + 1
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(1)
epdconfig.digital_write(self.reset_pin, 1)
self.SetLut(self.lut_partial_update)
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, linewidth):
self.send_data(image[i + j * linewidth])
self.TurnOnDisplayPart()
def displayPartBaseImage(self, image):
if self.width%8 == 0:
linewidth = int(self.width/8)
else:
linewidth = int(self.width/8) + 1
self.send_command(0x24)
for j in range(0, self.height):
for i in range(0, linewidth):
self.send_data(image[i + j * linewidth])
self.send_command(0x26)
for j in range(0, self.height):
for i in range(0, linewidth):
self.send_data(image[i + j * linewidth])
self.TurnOnDisplay()
def Clear(self, color):
if self.width%8 == 0:
linewidth = int(self.width/8)
else:
linewidth = int(self.width/8) + 1
# logger.debug(linewidth)
self.send_command(0x24)
for j in range(0, self.height):
for i in range(0, linewidth):
self.send_data(color)
self.TurnOnDisplay()
def sleep(self):
self.send_command(0x10) #enter deep sleep
self.send_data(0x01)
epdconfig.delay_ms(2000)
epdconfig.module_exit()
### END OF FILE ###