mirror of
https://github.com/KevinMidboe/schleppe-lab.git
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More code examples for brew dispaly
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@@ -15,4 +15,183 @@ Continuing on brewpi refrigerator project we have already created a [regulator](
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fullwidth="true"
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%}
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The code is split into the e-ink renderer and a http server to easier update.
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server:
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```python
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from flask import Flask, request, render_template, send_file, redirect, send_from_directory
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from main import draw
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app = Flask(__name__)
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brew = {
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'name': 'Kinn Kveldsbris',
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'time': '11 days',
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'phase': 'Carbonating',
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'next-phase': 'Drink'
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}
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@app.route('/api/render', methods=['POST'])
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def render():
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draw(brew)
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if request.headers.get('Content-Type') == 'application/json':
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return 'ok'
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else:
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return redirect('/')
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@app.route('/_health')
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def health():
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return 'ok'
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@app.route('/', methods=['GET'])
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def index():
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return render_template('index.html', brew=brew)
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@app.route('/', methods=['POST'])
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def indexForm():
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brew['name'] = request.form['name'] or brew['name']
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brew['time'] = request.form['time'] or brew['time']
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brew['phase'] = request.form['phase'] or brew['phase']
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brew['next-phase'] = request.form['next-phase'] or brew['next-phase']
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return redirect('/')
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if __name__ == '__main__':
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app.run(host='0.0.0.0')
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```
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<script src="https://gist.github.com/KevinMidboe/1d89a34370caf6755c74c76341d23dd9.js"></script>
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template/index.html:
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1"><title>Dynamic Label and Input Fields</title>
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</head>
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<body>
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<h3>Name: {{ brew['name'] }}</h3>
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<h5>Time: {{ brew['time'] }}</h5>
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<h5>Phase: {{ brew['phase'] }}</h5>
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<h5>Next phase: {{ brew['next-phase'] }}</h5>
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<form method="POST" action="/">
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<label for="field1">Beer name:</label>
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<input type="text" id="name" name="name"><br><br>
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<label for="field2">Time left:</label>
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<input type="text" id="time" name="time"><br><br>
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<label for="field3">Current Phase:</label>
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<input type="text" id="phase" name="phase"><br><br>
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<label for="field4">Next Phase:</label>
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<input type="text" id="next-phase" name="next-phase"><br><br>
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<input type="submit" value="Submit">
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</form>
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<form method="POST" action="/api/render">
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<input type="submit" value="Render">
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</form>
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</body>
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</html>
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```
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renderer:
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```python
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#!/usr/bin/python
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# -*- coding:utf-8 -*-
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import sys
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import os
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picdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'brewDisplay/pic')
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libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'brewDisplay/lib')
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print(libdir)
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if os.path.exists(libdir):
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sys.path.append(libdir)
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import logging
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from waveshare_epd import epd2in9bc
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import time
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from PIL import Image,ImageDraw,ImageFont
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import traceback
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logging.basicConfig(level=logging.DEBUG)
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placeholderBrew = {
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'name': 'Kinn Kveldsbris',
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'time': '11 days',
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'phase': 'Carbonating',
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'next-phase': 'Drink'
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}
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def draw(brew=placeholderBrew):
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try:
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logging.info("epd2in9bc Demo")
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epd = epd2in9bc.EPD()
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logging.info("init and Clear")
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epd.init()
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epd.Clear()
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# Drawing on the image
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logging.info("Drawing")
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font70 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 70)
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font40 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 40)
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font24 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 24)
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font20 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 20)
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font18 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 18)
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font16 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 16)
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font14 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 14)
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font12 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 12)
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font8 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 8)
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# Drawing on the Horizontal image
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logging.info("1.Drawing on the Horizontal image...")
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HBlackimage = Image.new('1', (epd.height, epd.width), 255) # 298*126
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HRYimage = Image.new('1', (epd.height, epd.width), 255) # 298*126 ryimage: red or yellow image
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drawblack = ImageDraw.Draw(HBlackimage)
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drawry = ImageDraw.Draw(HRYimage)
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# drawblack.text((2, 0), 'Schleppe brew', font = font12, fill = 0)
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drawblack.text((2, 0), 'Beer: {}'.format(brew['name']), font = font14, fill = 0)
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drawblack.text((2, 16), "State: heating", font = font20, fill = 0)
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drawblack.text((190, 0), "Time left", font = font18, fill = 0)
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drawblack.text((190, 18), brew['time'], font = font12, fill = 0)
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drawblack.text((190, 34), "Phase", font = font18, fill = 0)
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drawblack.text((190, 52), brew['phase'], font = font12, fill = 0)
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drawblack.text((190, 66), "Next: {}".format(brew['next-phase']), font = font8, fill = 0)
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# ddrawblack.text((175, 54), "Time:", font = font16, fill = 0)
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# ddrawblack.text((175, 66), "11 days", font = font12, fill = 0)
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drawblack.text((2, 55), "Inside temp", font = font14, fill = 0)
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drawblack.text((2, 60), "4.3 C", font = font70, fill = 0)
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drawblack.arc((110, 70, 120, 80), 0, 360, fill = 0)
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drawblack.text((175, 79), "Outside temp", font = font14, fill = 0)
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drawblack.text((175, 89), "20.3 C", font = font40, fill = 0)
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epd.display(epd.getbuffer(HBlackimage), epd.getbuffer(HRYimage))
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logging.info("Goto Sleep...")
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epd.sleep()
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except IOError as e:
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logging.info(e)
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except KeyboardInterrupt:
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logging.info("ctrl + c:")
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epd2in9bc.epdconfig.module_exit()
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exit()
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if __name__ == '__main__':
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draw()
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```
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