Merge pull request #75 from tijmenvandenbrink/master

[EVA-2020-02-2.git] / examples / all-in-one-no-pm.py

diff --git a/examples/all-in-one-no-pm.py b/examples/all-in-one-no-pm.py
index 962f627548fe0c0b62395e3dacb59e8a755de74a..de8ab067479fd08224853e1fb5a2703f026df28c 100755 (executable)
--- a/examples/all-in-one-no-pm.py
+++ b/examples/all-in-one-no-pm.py
@@ -1,11 +1,16 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 import colorsys
 import os
 import sys
 import ST7735
-import ltr559
+try:
+    # Transitional fix for breaking change in LTR559
+    from ltr559 import LTR559
+    ltr559 = LTR559()
+except ImportError:
+    import ltr559
 
 from bme280 import BME280
 from enviroplus import gas
@@ -13,8 +18,15 @@ from subprocess import PIPE, Popen
 from PIL import Image
 from PIL import ImageDraw
 from PIL import ImageFont
+from fonts.ttf import RobotoMedium as UserFont
+import logging
+
+logging.basicConfig(
+    format='%(asctime)s.%(msecs)03d %(levelname)-8s %(message)s',
+    level=logging.INFO,
+    datefmt='%Y-%m-%d %H:%M:%S')
 
-print("""all-in-one.py - Displays readings from all of Enviro plus' sensors
+logging.info("""all-in-one.py - Displays readings from all of Enviro plus' sensors
 Press Ctrl+C to exit!
 """)
 
@@ -41,7 +53,8 @@ HEIGHT = st7735.height
 img = Image.new('RGB', (WIDTH, HEIGHT), color=(0, 0, 0))
 draw = ImageDraw.Draw(img)
 path = os.path.dirname(os.path.realpath(__file__))
-font = ImageFont.truetype(path + "/fonts/Asap/Asap-Bold.ttf", 20)
+font_size = 20
+font = ImageFont.truetype(UserFont, font_size)
 
 message = ""
 
@@ -54,23 +67,22 @@ def display_text(variable, data, unit):
     # Maintain length of list
     values[variable] = values[variable][1:] + [data]
     # Scale the values for the variable between 0 and 1
-    colours = [(v - min(values[variable]) + 1) / (max(values[variable])
-               - min(values[variable]) + 1) for v in values[variable]]
+    vmin = min(values[variable])
+    vmax = max(values[variable])
+    colours = [(v - vmin + 1) / (vmax - vmin + 1) for v in values[variable]]
     # Format the variable name and value
     message = "{}: {:.1f} {}".format(variable[:4], data, unit)
-    print(message)
+    logging.info(message)
     draw.rectangle((0, 0, WIDTH, HEIGHT), (255, 255, 255))
     for i in range(len(colours)):
         # Convert the values to colours from red to blue
         colour = (1.0 - colours[i]) * 0.6
-        r, g, b = [int(x * 255.0) for x in colorsys.hsv_to_rgb(colour,
-                   1.0, 1.0)]
+        r, g, b = [int(x * 255.0) for x in colorsys.hsv_to_rgb(colour, 1.0, 1.0)]
         # Draw a 1-pixel wide rectangle of colour
-        draw.rectangle((i, top_pos, i+1, HEIGHT), (r, g, b))
+        draw.rectangle((i, top_pos, i + 1, HEIGHT), (r, g, b))
         # Draw a line graph in black
-        line_y = HEIGHT - (top_pos + (colours[i] * (HEIGHT - top_pos)))\
-                 + top_pos
-        draw.rectangle((i, line_y, i+1, line_y+1), (0, 0, 0))
+        line_y = HEIGHT - (top_pos + (colours[i] * (HEIGHT - top_pos))) + top_pos
+        draw.rectangle((i, line_y, i + 1, line_y + 1), (0, 0, 0))
     # Write the text at the top in black
     draw.text((0, 0), message, font=font, fill=(0, 0, 0))
     st7735.display(img)
@@ -85,7 +97,7 @@ def get_cpu_temperature():
 
 # Tuning factor for compensation. Decrease this number to adjust the
 # temperature down, and increase to adjust up
-factor = 0.8
+factor = 2.25
 
 cpu_temps = [get_cpu_temperature()] * 5