use generic variables; handle pms5003.ReadTimeoutError

[EVA-2020-02-2.git] / examples / compensated-temperature.py

diff --git a/examples/compensated-temperature.py b/examples/compensated-temperature.py
index b572ad5127eddd247a858cfb805db4d996cae076..2733f56c756d43a2bcc1cf57a6eef085ed9f6117 100755 (executable)
--- a/examples/compensated-temperature.py
+++ b/examples/compensated-temperature.py
@@ -9,9 +9,10 @@ try:
 except ImportError:
     from smbus import SMBus
 
-print("""compensated-temperature.py - Use the CPU temperature to compensate temperature
-readings from the BME280 sensor. Method adapted from Initial State's Enviro pHAT
-review: https://medium.com/@InitialState/tutorial-review-enviro-phat-for-raspberry-pi-4cd6d8c63441
+print("""compensated-temperature.py - Use the CPU temperature
+to compensate temperature readings from the BME280 sensor.
+Method adapted from Initial State's Enviro pHAT review:
+https://medium.com/@InitialState/tutorial-review-enviro-phat-for-raspberry-pi-4cd6d8c63441
 
 Press Ctrl+C to exit!
 
@@ -20,17 +21,19 @@ Press Ctrl+C to exit!
 bus = SMBus(1)
 bme280 = BME280(i2c_dev=bus)
 
+
 # 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()
     return float(output[output.index('=') + 1:output.rindex("'")])
 
+
 # Tuning factor for compensation. Decrease this number to adjust the
 # temperature down, and increase to adjust up
 factor = 0.8
 
-cpu_temps = [0] * 5
+cpu_temps = [get_cpu_temperature()] * 5
 
 while True:
     cpu_temp = get_cpu_temperature()