init

UI/bdsensors.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+import os
+import glob
+import time
+import subprocess
+
+# this needs to be automated later TODO
+base_dir = '/sys/bus/w1/devices/'
+# here is the prefix of the hardware in this case, 10
+device_folder = glob.glob(base_dir + '00*')[0]
+device_file = device_folder + '/w1_bus_master1'
+
+
+def read_temp_raw():  # This function reads the raw sensor chip information
+    catdata = subprocess.Popen(
+        ['cat', device_file], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    out, err = catdata.communicate()
+    out_decode = out.decode('utf-8')
+    lines = out_decode.split('\n')
+    return lines
+
+
+def read_temp():  # This function takes the the raw sensor chip information
+    lines = read_temp_raw()  # strips it down and takes only the temperature out
+    while lines[0].strip()[-3:] != 'YES':
+        time.sleep(0.2)
+        lines = read_temp_raw()
+    equals_pos = lines[1].find('t=')
+    if equals_pos != -1:
+        temp_string = lines[1][equals_pos+2:]
+        # Calculates temperature in celcius and stores it in variable
+        temp_c = float(temp_string) / 1000.0
+        # Calculates temperature in fahreint and stores it in variable
+        temp_f = temp_c * 9.0 / 5.0 + 32.0
+        return temp_c  # here it returns only the temperature in celcius