Sleep before first PMS5003 reading

[EVA-2020-02-2.git] / examples / all-in-one.py

diff --git a/examples/all-in-one.py b/examples/all-in-one.py
index 695a007e0d33a538fa9f3ca1efc9dbeb90ac45e8..03e4d5880d186e4cede2112ac836119b593b72f6 100755 (executable)
--- a/examples/all-in-one.py
+++ b/examples/all-in-one.py
@@ -5,17 +5,28 @@ import colorsys
 import os
 import sys
 import ST7735
 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 bme280 import BME280

-from pms5003 import PMS5003
+from pms5003 import PMS5003, ReadTimeoutError as pmsReadTimeoutError

 from enviroplus import gas
 from subprocess import PIPE, Popen
 from PIL import Image
 from PIL import ImageDraw
 from PIL import ImageFont
 from enviroplus import gas
 from subprocess import PIPE, Popen
 from PIL import Image
 from PIL import ImageDraw
 from PIL import ImageFont

+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!
 
 
 Press Ctrl+C to exit!
 


@@ -64,7 +75,7 @@ def display_text(variable, data, unit):
                - min(values[variable]) + 1) for v in values[variable]]
     # Format the variable name and value
     message = "{}: {:.1f} {}".format(variable[:4], data, unit)
                - min(values[variable]) + 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
     draw.rectangle((0, 0, WIDTH, HEIGHT), (255, 255, 255))
     for i in range(len(colours)):
         # Convert the values to colours from red to blue


@@ -84,9 +95,8 @@ def display_text(variable, data, unit):
 
 # Get the temperature of the CPU for compensation
 def get_cpu_temperature():
 
 # Get the temperature of the CPU for compensation
 def get_cpu_temperature():

-    process = Popen(['vcgencmd', 'measure_temp'], stdout=PIPE)
+    process = Popen(['vcgencmd', 'measure_temp'], stdout=PIPE, universal_newlines=True)

     output, _error = process.communicate()
     output, _error = process.communicate()

-    output = output.decode()

     return float(output[output.index('=') + 1:output.rindex("'")])
 
 
     return float(output[output.index('=') + 1:output.rindex("'")])
 
 


@@ -94,10 +104,10 @@ def get_cpu_temperature():
 # temperature down, and increase to adjust up
 factor = 0.8
 
 # temperature down, and increase to adjust up
 factor = 0.8
 

-cpu_temps = [0] * 5
+cpu_temps = [get_cpu_temperature()] * 5

 
 delay = 0.5  # Debounce the proximity tap
 
 delay = 0.5  # Debounce the proximity tap

-mode = 0  # The starting mode
+mode = 0     # The starting mode

 last_page = 0
 light = 1
 
 last_page = 0
 light = 1
 


@@ -131,7 +141,7 @@ try:
 
         # One mode for each variable
         if mode == 0:
 
         # One mode for each variable
         if mode == 0:

-            variable = "temperature"
+            # variable = "temperature"

             unit = "C"
             cpu_temp = get_cpu_temperature()
             # Smooth out with some averaging to decrease jitter
             unit = "C"
             cpu_temp = get_cpu_temperature()
             # Smooth out with some averaging to decrease jitter


@@ -139,70 +149,82 @@ try:
             avg_cpu_temp = sum(cpu_temps) / float(len(cpu_temps))
             raw_temp = bme280.get_temperature()
             data = raw_temp - ((avg_cpu_temp - raw_temp) / factor)
             avg_cpu_temp = sum(cpu_temps) / float(len(cpu_temps))
             raw_temp = bme280.get_temperature()
             data = raw_temp - ((avg_cpu_temp - raw_temp) / factor)

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 1:
 
         if mode == 1:

-            variable = "pressure"
+            # variable = "pressure"

             unit = "hPa"
             data = bme280.get_pressure()
             unit = "hPa"
             data = bme280.get_pressure()

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 2:
 
         if mode == 2:

-            variable = "humidity"
+            # variable = "humidity"

             unit = "%"
             data = bme280.get_humidity()
             unit = "%"
             data = bme280.get_humidity()

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 3:
 
         if mode == 3:

-            variable = "light"
+            # variable = "light"

             unit = "Lux"
             if proximity < 10:
                 data = ltr559.get_lux()
             else:
                 data = 1
             unit = "Lux"
             if proximity < 10:
                 data = ltr559.get_lux()
             else:
                 data = 1

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 4:
 
         if mode == 4:

-            variable = "oxidised"
+            # variable = "oxidised"

             unit = "kO"
             data = gas.read_all()
             data = data.oxidising / 1000
             unit = "kO"
             data = gas.read_all()
             data = data.oxidising / 1000

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 5:
 
         if mode == 5:

-            variable = "reduced"
+            # variable = "reduced"

             unit = "kO"
             data = gas.read_all()
             data = data.reducing / 1000
             unit = "kO"
             data = gas.read_all()
             data = data.reducing / 1000

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 6:
 
         if mode == 6:

-            variable = "nh3"
+            # variable = "nh3"

             unit = "kO"
             data = gas.read_all()
             data = data.nh3 / 1000
             unit = "kO"
             data = gas.read_all()
             data = data.nh3 / 1000

-            display_text(variable, data, unit)
+            display_text(variables[mode], data, unit)

 
         if mode == 7:
 
         if mode == 7:

-            variable = "pm1"
+            # variable = "pm1"

             unit = "ug/m3"
             unit = "ug/m3"

-            data = pms5003.read()
-            data = data.pm_ug_per_m3(1.0)
-            display_text(variable, data, unit)
+            try:
+                data = pms5003.read()
+            except pmsReadTimeoutError:
+                logging.warn("Failed to read PMS5003")
+            else:
+                data = float(data.pm_ug_per_m3(1.0))
+                display_text(variables[mode], data, unit)

 
         if mode == 8:
 
         if mode == 8:

-            variable = "pm25"
+            # variable = "pm25"

             unit = "ug/m3"
             unit = "ug/m3"

-            data = pms5003.read()
-            data = data.pm_ug_per_m3(2.5)
-            display_text(variable, data, unit)
+            try:
+                data = pms5003.read()
+            except pmsReadTimeoutError:
+                logging.warn("Failed to read PMS5003")
+            else:
+                data = float(data.pm_ug_per_m3(2.5))
+                display_text(variables[mode], data, unit)

 
         if mode == 9:
 
         if mode == 9:

-            variable = "pm10"
+            # variable = "pm10"

             unit = "ug/m3"
             unit = "ug/m3"

-            data = pms5003.read()
-            data = data.pm_ug_per_m3(10)
-            display_text(variable, data, unit)
+            try:
+                data = pms5003.read()
+            except pmsReadTimeoutError:
+                logging.warn("Failed to read PMS5003")
+            else:
+                data = float(data.pm_ug_per_m3(10))
+                display_text(variables[mode], data, unit)

 
 # Exit cleanly
 except KeyboardInterrupt:
 
 # Exit cleanly
 except KeyboardInterrupt: