Rev 3489 Rev 3492
Line 24... Line 24...
24 }, 24 },
25 ], 25 ],
26 ) 26 )
27 cfg.initialize() 27 cfg.initialize()
28   28  
29 print "LTS01 temperature sensor module example \r\n" 29 print "Frequency counter readout example \r\n"
30 print "Temperature Humidity[%%] \r\n" -  
31 fcount = cfg.get_device("counter") 30 fcount = cfg.get_device("counter")
32 time.sleep(0.5) 31 time.sleep(0.5)
-   32 frequency = fcount.get_freq()
33   33  
34 #### Data Logging ################################################### 34 #### Data Logging ###################################################
35   35  
36 tune = 143050000 -  
37 set_freq = 10000000 -  
38   -  
39 try: 36 try:
-   37 with open("temperature.log", "a") as f:
40 while True: 38 while True:
41 now = datetime.datetime.now() 39 now = datetime.datetime.now()
42 if (now.second == 15) or (now.second == 35) or (now.second == 55): 40 if (now.second == 15) or (now.second == 35) or (now.second == 55):
43 frequency = fcount.get_freq() 41 frequency = fcount.get_freq()
44 f = open('/sys/bus/i2c/devices/7-0055/frequency', 'a', buffering = 0) -  
45 # set_freq = set_freq + (tune - frequency) 42 now = datetime.datetime.now()
46   43  
47 if (tune > frequency): -  
48 set_freq = set_freq + 1 -  
49 else: set_freq = set_freq - 1 -  
50 f.write(str(int(set_freq))) -  
51 sys.stdout.write("frequency:" + str(frequency) + "\r\n") 44 sys.stdout.write("frequency: " + str(frequency) + " Hz Time: " + str(now.second) + "\r")
52 f.close() 45 f.write("%d\t%s\t%.3f\n" % (time.time(), datetime.datetime.now().isoformat(), frequency))
53   46  
54 sys.stdout.write("Time:" + str(now.second) + "\r\n") -  
55 sys.stdout.flush() 47 sys.stdout.flush()
56 time.sleep(1) 48 time.sleep(1)
57 except KeyboardInterrupt: 49 except KeyboardInterrupt:
-   50 sys.stdout.write("\r\n")
58 sys.exit(0) 51 sys.exit(0)
-   52 f.close()