Initial commit

.gitignore

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+secrets.py
+epd_4in2_test.py
+__pycache__/
+lib/
+img/Font.ttc

README.md

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+## dismyreadme
+
+**Waveshare e-Paper repo: https://github.com/waveshare/e-Paper**
+
+.gitignored files:
+
+\- **secrets.py** - file containing two variables: octoprint & apikey. octoprint should be your octoprint server's IP address or domain name and apikey is your octoprint api key. Minimum permissions: guest.  
+\- **epd\_4in2\_test.py** - the demo file from waveshare, available on their github page.  
+\- **\_\_pycache\_\_/** - aint nobody got time for compiled python binaries.  
+\- **lib/** - library files from waveshare, available on their github page.  
+\- **img/Font.ttc** - font file provided by waveshare, available on their github page.  
+
+**ePaper Pins:**
+
+              Raspberry Pi
+    EPAPER   BCM2835   Board
+    VCC      3.3V      3.3V
+    GND      GND       GND
+    DIN      MOSI      19
+    CLK      SCLK      23
+    CS       CE0       24
+    DC       25        22
+    RST      17        11
+    BUSY     24        18

epaper.txt

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+https://www.waveshare.com/wiki/3inch_e-Paper_Module_(G)_Manual#Working_With_Raspberry_Pi
+
+    Install BCM2835
+
+#Open the Raspberry Pi terminal and run the following command
+wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
+tar zxvf bcm2835-1.71.tar.gz
+cd bcm2835-1.71/
+sudo ./configure && sudo make && sudo make check && sudo make install
+# For more information, please refer to the official website: http://www.airspayce.com/mikem/bcm2835/
+
+
+    Install WiringPi (Optional)
+
+#Open the Raspberry Pi terminal and run the following command:
+sudo apt-get install wiringpi
+#For Raspberry Pi systems after May 2019 (earlier than before, you may not need to execute), you may need to upgrade:
+wget https://project-downloads.drogon.net/wiringpi-latest.deb
+sudo dpkg -i wiringpi-latest.deb
+gpio -v
+#Run gpio -v and version 2.52 will appear. If it does not appear, the installation is wrong.
+
+#Bullseye branch system use the following command:
+git clone https://github.com/WiringPi/WiringPi
+cd WiringPi
+./build
+gpio -v
+# Run gpio -v and version 2.60 will appear. If it does not appear, it means that there is an installation error.
+
+
+
+    Install the function library
+
+sudo apt-get update
+sudo apt-get install python3-pip
+sudo apt-get install python3-pil
+sudo apt-get install python3-numpy
+sudo pip3 install RPi.GPIO
+sudo pip3 install spidev
+
+
+    Download the demo via GitHub (You can skip this step if you have downloaded it.)
+
+git clone https://github.com/waveshare/e-Paper.git
+cd e-Paper/RaspberryPi_JetsonNano/
+
+#          Raspberry Pi
+# EPAPER   BCM2835   Board
+# VCC      3.3V      3.3V
+# GND      GND       GND
+# DIN      MOSI      19
+# CLK      SCLK      23
+# CS       CE0       24
+# DC       25        22
+# RST      17        11
+# BUSY     24        18

octomonitor.py

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+#!/usr/bin/python3
+# -*- coding:utf-8 -*-
+
+#  secrets.py:
+# octoprint="https://your.octoprint.ip.address.or.domain.name"
+# apikey="your-octoprint-api-key"
+
+from secrets import *
+
+pluginpath="plugin/DisplayLayerProgress/values"
+fullurl=f"{octoprint}/{pluginpath}?apikey={apikey}"
+
+# CODED FOR WAVESHARE 4.2" 400x300 B&W ePaper Display
+# Requires the DisplayLayerProgress plugin
+# https://github.com/OllisGit/OctoPrint-DisplayLayerProgress
+
+import sys
+import os
+import json
+import requests
+imgdir = "/home/pi/epaper/img"#os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'img')#dontask
+libdir = "/home/pi/epaper/lib"#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 epd4in2
+import time
+from PIL import Image,ImageDraw,ImageFont
+import traceback
+
+# https://stackoverflow.com/a/32282390
+from urllib3.exceptions import InsecureRequestWarning
+requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)
+
+logging.basicConfig(level=logging.DEBUG)
+
+def getData():
+  jsondata=requests.get(fullurl, verify=False).json()
+  jobdata={
+    "file":jsondata["currentFilename"],
+    "layer":jsondata["layer"]["current"],
+    "layers":jsondata["layer"]["total"],
+    "lastlayertime":jsondata["layer"]["lastLayerDuration"],
+    "percent":jsondata["print"]["progress"],
+    "eta":jsondata["print"]["timeLeft"],
+    "remaining":jsondata["print"]["timeLeftInSeconds"] }
+  return jobdata
+
+print(getData())
+sys.exit(0)
+try:
+logging.info("Octopi print monitor starting...")
+
+  epd = epd4in2.EPD()
+  logging.info("init and Clear")
+  epd.init()
+  epd.Clear()
+
+  font18 = ImageFont.truetype(os.path.join(imgdir, 'Font.ttc'), 18)
+  font24 = ImageFont.truetype(os.path.join(imgdir, 'Font.ttc'), 24)
+  font35 = ImageFont.truetype(os.path.join(imgdir, 'Font.ttc'), 35)
+
+  # Drawing on the Horizontal image
+  logging.info("1.Drawing on the Horizontal image...")
+  Himage = Image.new('1', (epd.width, epd.height), 255)  # 255: clear the frame
+  draw = ImageDraw.Draw(Himage)
+  draw.text((10, 0), 'hello world', font = font24, fill = 0)
+  draw.text((10, 20), '4.2inch e-Paper', font = font24, fill = 0)
+  draw.text((150, 0), u'微雪电子', font = font24, fill = 0)    
+  draw.line((20, 50, 70, 100), fill = 0)
+  draw.line((70, 50, 20, 100), fill = 0)
+  draw.rectangle((20, 50, 70, 100), outline = 0)
+  draw.line((165, 50, 165, 100), fill = 0)
+  draw.line((140, 75, 190, 75), fill = 0)
+  draw.arc((140, 50, 190, 100), 0, 360, fill = 0)
+  draw.rectangle((80, 50, 130, 100), fill = 0)
+  draw.chord((200, 50, 250, 100), 0, 360, fill = 0)
+  epd.display(epd.getbuffer(Himage))
+  time.sleep(2)
+
+#    logging.info("3.read bmp file")
+#    Himage = Image.open(os.path.join(imgdir, '4in2.bmp'))
+#    epd.display(epd.getbuffer(Himage))
+#    time.sleep(2)
+
+#    logging.info("4.read bmp file on window")
+#    Himage2 = Image.new('1', (epd.height, epd.width), 255)  # 255: clear the frame
+#    bmp = Image.open(os.path.join(imgdir, '100x100.bmp'))
+#    Himage2.paste(bmp, (50,10))
+#    epd.display(epd.getbuffer(Himage2))
+#    time.sleep(2)
+
+  epd.Clear()
+  logging.info("Goto Sleep...")
+  epd.sleep()
+    
+except IOError as e:
+  logging.info(e)
+    
+except KeyboardInterrupt:    
+  logging.info("ctrl + c:")
+  epd4in2.epdconfig.module_exit()
+  exit()