Merge pull request #72 from petermcd/example-fixes

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

diff --git a/examples/compensated-temperature.py b/examples/compensated-temperature.py
index 7d0d0f1bd565821c26cd8af7ee12813b001b3c0f..b648f57608a02c5a8a523b90a88884d545dac979 100755 (executable)
--- a/examples/compensated-temperature.py
+++ b/examples/compensated-temperature.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 from bme280 import BME280
@@ -8,7 +8,14 @@ try:
 except ImportError:
     from smbus import SMBus
 
-print("""compensated-temperature.py - Use the CPU temperature
+import logging
+
+logging.basicConfig(
+    format='%(asctime)s.%(msecs)03d %(levelname)-8s %(message)s',
+    level=logging.INFO,
+    datefmt='%Y-%m-%d %H:%M:%S')
+
+logging.info("""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
@@ -31,9 +38,9 @@ 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 = [0] * 5
+cpu_temps = [get_cpu_temperature()] * 5
 
 while True:
     cpu_temp = get_cpu_temperature()
@@ -42,5 +49,5 @@ while True:
     avg_cpu_temp = sum(cpu_temps) / float(len(cpu_temps))
     raw_temp = bme280.get_temperature()
     comp_temp = raw_temp - ((avg_cpu_temp - raw_temp) / factor)
-    print("Compensated temperature: {:05.2f} *C".format(comp_temp))
+    logging.info("Compensated temperature: {:05.2f} *C".format(comp_temp))
     time.sleep(1.0)