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iButton Temperature Buttons

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Posted by Ray Hogan on February 15, 2006, 9:05 am
 
Hi,
i recently purchased a iButton USB Dongle and some DS1920 Temperature
Buttons.
Can you advise me of some low level software to program and read date at
starter level.
Thanking you in anticipation.
RayH




Posted by schooner on February 15, 2006, 11:15 am
 
Check the forums on the Maxim site.  They can point you to some sample code.
http://discuss.dalsemi.com/index.php



Posted by schooner on February 15, 2006, 11:24 am
 Here is a link to the One Wire Viewer software
http://www.maxim-ic.com/products/ibutton/software/1wire/OneWireViewer.cfm



Posted by schooner on February 15, 2006, 12:29 pm
 The DS1922 or DS1923 are a nice way to go.  They are data loggers that
require no connection so can be used to do remote logging.  You configure
them on the PC to set the logging interval, etc and then put them in the
location you want to monitor.  When done you just connect them and download
the temp log.  I just setup one today in my solar air panel to log the
output temp every 2 mins.  I'll post the results if I get it working.

The DS1920 is just a temp sensor, no logging so needs to be connected at all
times to read but a cheaper way to go and simply to use over a phone line
cable.



Posted by schooner on February 15, 2006, 9:05 pm
 Here are the results from today's test with the DS1922 iButton Temp Logger
in my solar air collector.  Data logger was placed in output duct.  Input
temp was approx 63F.  Mostly sunny day with few clouds.

Graph: http://www.corl.ca/templogfeb152006.gif

Halifax, NS Canada

Date & Time Temperature Humidity
2/15/2006 10:52:01 AM 4.60 87.01
2/15/2006 10:53:01 AM 41.19 87.01
2/15/2006 10:54:01 AM 41.19 87.01
2/15/2006 10:55:01 AM 41.19 86.48
2/15/2006 10:56:01 AM 41.19 87.01
2/15/2006 10:57:01 AM 41.19 87.55
2/15/2006 10:58:01 AM 41.19 87.01
2/15/2006 10:59:01 AM 42.10 88.08
2/15/2006 11:00:01 AM 42.10 88.08
2/15/2006 11:01:01 AM 43.00 86.48
2/15/2006 11:02:01 AM 43.00 87.55
2/15/2006 11:03:01 AM 43.90 87.55
2/15/2006 11:04:01 AM 43.90 87.55
2/15/2006 11:05:01 AM 44.81 88.08
2/15/2006 11:06:01 AM 44.81 87.55
2/15/2006 11:07:01 AM 45.71 87.55
2/15/2006 11:08:01 AM 45.71 87.55
2/15/2006 11:09:01 AM 46.62 87.01
2/15/2006 11:10:01 AM 46.62 86.48
2/15/2006 11:11:01 AM 47.52 87.01
2/15/2006 11:12:01 AM 48.42 87.01
2/15/2006 11:13:01 AM 48.42 86.48
2/15/2006 11:14:01 AM 49.33 86.48
2/15/2006 11:15:01 AM 49.33 85.40
2/15/2006 11:16:01 AM 49.33 85.40
2/15/2006 11:17:01 AM 50.23 83.77
2/15/2006 11:18:01 AM 50.23 83.23
2/15/2006 11:19:01 AM 50.23 82.13
2/15/2006 11:20:01 AM 50.23 83.23
2/15/2006 11:21:01 AM 50.23 81.03
2/15/2006 11:22:01 AM 49.33 80.48
2/15/2006 11:23:01 AM 49.33 79.92
2/15/2006 11:24:01 AM 49.33 80.48
2/15/2006 11:25:01 AM 48.42 79.92
2/15/2006 11:26:01 AM 48.42 79.36
2/15/2006 11:27:01 AM 48.42 78.81
2/15/2006 11:28:01 AM 47.52 78.81
2/15/2006 11:29:01 AM 47.52 78.81
2/15/2006 11:30:01 AM 47.52 79.92
2/15/2006 11:31:01 AM 47.52 79.36
2/15/2006 11:32:01 AM 47.52 79.36
2/15/2006 11:33:01 AM 46.62 79.92
2/15/2006 11:34:01 AM 46.62 78.81
2/15/2006 11:35:01 AM 46.62 79.36
2/15/2006 11:36:01 AM 46.62 78.81
2/15/2006 11:37:01 AM 46.62 79.36
2/15/2006 11:38:01 AM 45.71 78.81
2/15/2006 11:39:01 AM 45.71 78.25
2/15/2006 11:40:01 AM 45.71 79.36
2/15/2006 11:41:01 AM 45.71 79.36
2/15/2006 11:42:01 AM 45.71 79.92
2/15/2006 11:43:01 AM 45.71 78.81
2/15/2006 11:44:01 AM 45.71 78.81
2/15/2006 11:45:01 AM 45.71 78.81
2/15/2006 11:46:01 AM 45.71 78.81
2/15/2006 11:47:01 AM 45.71 79.92
2/15/2006 11:48:01 AM 45.71 79.36
2/15/2006 11:49:01 AM 45.71 79.36
2/15/2006 11:50:01 AM 44.81 78.81
2/15/2006 11:51:01 AM 44.81 79.36
2/15/2006 11:52:01 AM 44.81 79.36
2/15/2006 11:53:01 AM 44.81 79.92
2/15/2006 11:54:01 AM 44.81 79.36
2/15/2006 11:55:01 AM 44.81 79.36
2/15/2006 11:56:01 AM 44.81 79.92
2/15/2006 11:57:01 AM 44.81 79.92
2/15/2006 11:58:01 AM 45.71 79.92
2/15/2006 11:59:01 AM 45.71 79.92
2/15/2006 12:00:01 PM 45.71 79.92
2/15/2006 12:01:01 PM 45.71 80.48
2/15/2006 12:02:01 PM 45.71 80.48
2/15/2006 12:03:01 PM 45.71 81.03
2/15/2006 12:04:01 PM 45.71 81.03
2/15/2006 12:05:01 PM 46.62 79.92
2/15/2006 12:06:01 PM 46.62 79.92
2/15/2006 12:07:01 PM 46.62 79.92
2/15/2006 12:08:01 PM 46.62 79.36
2/15/2006 12:09:01 PM 46.62 78.81
2/15/2006 12:10:01 PM 47.52 78.25
2/15/2006 12:11:01 PM 47.52 78.81
2/15/2006 12:12:01 PM 47.52 79.36
2/15/2006 12:13:01 PM 47.52 78.81
2/15/2006 12:14:01 PM 47.52 78.25
2/15/2006 12:15:01 PM 48.42 77.68
2/15/2006 12:16:01 PM 48.42 78.25
2/15/2006 12:17:01 PM 48.42 78.81
2/15/2006 12:18:01 PM 49.33 80.48
2/15/2006 12:19:01 PM 49.33 79.92
2/15/2006 12:20:01 PM 50.23 81.58
2/15/2006 12:21:01 PM 51.13 80.48
2/15/2006 12:22:01 PM 51.13 81.03
2/15/2006 12:23:01 PM 52.04 81.58
2/15/2006 12:24:01 PM 67.38 70.82
2/15/2006 12:25:01 PM 86.27 38.37
2/15/2006 12:26:01 PM 96.15 23.33
2/15/2006 12:27:01 PM 95.26 38.37
2/15/2006 12:28:01 PM 85.38 73.71
2/15/2006 12:29:01 PM 77.28 50.10
2/15/2006 12:30:01 PM 89.87 33.67
2/15/2006 12:31:01 PM 95.26 17.67
2/15/2006 12:32:01 PM 99.74 13.35
2/15/2006 12:33:01 PM 102.43 11.90
2/15/2006 12:34:01 PM 104.23 11.17
2/15/2006 12:35:01 PM 105.12 10.44
2/15/2006 12:36:01 PM 105.12 10.44
2/15/2006 12:37:01 PM 106.02 8.98
2/15/2006 12:38:01 PM 99.74 9.71
2/15/2006 12:39:01 PM 83.58 16.95
2/15/2006 12:40:01 PM 94.36 15.52
2/15/2006 12:41:01 PM 103.33 10.44
2/15/2006 12:42:01 PM 106.92 8.98
2/15/2006 12:43:01 PM 108.71 8.24
2/15/2006 12:44:01 PM 109.60 8.24
2/15/2006 12:45:01 PM 109.60 6.77
2/15/2006 12:46:01 PM 110.50 7.51
2/15/2006 12:47:01 PM 110.50 6.03
2/15/2006 12:48:01 PM 110.50 6.03
2/15/2006 12:49:01 PM 110.50 7.51
2/15/2006 12:50:01 PM 110.50 6.77
2/15/2006 12:51:01 PM 111.39 6.77
2/15/2006 12:52:01 PM 112.29 6.77
2/15/2006 12:53:01 PM 112.29 6.03
2/15/2006 12:54:01 PM 113.18 5.29
2/15/2006 12:55:01 PM 113.18 6.77
2/15/2006 12:56:01 PM 114.08 4.55
2/15/2006 12:57:01 PM 114.97 4.55
2/15/2006 12:58:01 PM 114.97 4.55
2/15/2006 12:59:01 PM 114.97 6.03
2/15/2006 1:00:01 PM 114.97 4.55
2/15/2006 1:01:01 PM 115.87 4.55
2/15/2006 1:02:01 PM 115.87 4.55
2/15/2006 1:03:01 PM 115.87 4.55
2/15/2006 1:04:01 PM 116.76 4.55
2/15/2006 1:05:01 PM 116.76 3.80
2/15/2006 1:06:01 PM 117.66 3.80
2/15/2006 1:07:01 PM 117.66 3.80
2/15/2006 1:08:01 PM 117.66 3.80
2/15/2006 1:09:01 PM 118.55 4.55
2/15/2006 1:10:01 PM 118.55 4.55
2/15/2006 1:11:01 PM 118.55 3.80
2/15/2006 1:12:01 PM 117.66 4.55
2/15/2006 1:13:01 PM 116.76 4.55
2/15/2006 1:14:01 PM 116.76 4.55
2/15/2006 1:15:01 PM 116.76 4.55
2/15/2006 1:16:01 PM 116.76 3.80
2/15/2006 1:17:01 PM 117.66 3.80
2/15/2006 1:18:01 PM 117.66 3.80
2/15/2006 1:19:01 PM 118.55 5.29
2/15/2006 1:20:01 PM 118.55 4.55
2/15/2006 1:21:01 PM 118.55 4.55
2/15/2006 1:22:01 PM 118.55 3.80
2/15/2006 1:23:01 PM 119.45 4.55
2/15/2006 1:24:01 PM 119.45 3.06
2/15/2006 1:25:01 PM 119.45 4.55
2/15/2006 1:26:01 PM 119.45 4.55
2/15/2006 1:27:01 PM 120.34 2.31
2/15/2006 1:28:01 PM 120.34 3.80
2/15/2006 1:29:01 PM 121.24 3.06
2/15/2006 1:30:01 PM 121.24 3.80
2/15/2006 1:31:01 PM 121.24 2.31
2/15/2006 1:32:01 PM 122.13 4.55
2/15/2006 1:33:01 PM 122.13 2.31
2/15/2006 1:34:01 PM 122.13 2.31
2/15/2006 1:35:01 PM 123.03 3.06
2/15/2006 1:36:01 PM 123.03 3.06
2/15/2006 1:37:01 PM 122.13 3.80
2/15/2006 1:38:01 PM 120.34 3.06
2/15/2006 1:39:01 PM 119.45 3.06
2/15/2006 1:40:01 PM 117.66 3.06
2/15/2006 1:41:01 PM 116.76 3.80
2/15/2006 1:42:01 PM 114.97 3.80
2/15/2006 1:43:01 PM 115.87 3.80
2/15/2006 1:44:01 PM 116.76 3.80
2/15/2006 1:45:01 PM 117.66 4.55
2/15/2006 1:46:01 PM 118.55 4.55
2/15/2006 1:47:01 PM 118.55 4.55
2/15/2006 1:48:01 PM 118.55 3.80
2/15/2006 1:49:01 PM 119.45 3.80
2/15/2006 1:50:01 PM 119.45 3.80
2/15/2006 1:51:01 PM 120.34 3.06
2/15/2006 1:52:01 PM 120.34 3.80
2/15/2006 1:53:01 PM 120.34 4.55
2/15/2006 1:54:01 PM 121.24 3.80
2/15/2006 1:55:01 PM 121.24 2.31
2/15/2006 1:56:01 PM 121.24 1.56
2/15/2006 1:57:01 PM 120.34 3.06
2/15/2006 1:58:01 PM 121.24 3.06
2/15/2006 1:59:01 PM 120.34 2.31
2/15/2006 2:00:01 PM 120.34 3.80
2/15/2006 2:01:01 PM 120.34 3.80
2/15/2006 2:02:01 PM 120.34 2.31
2/15/2006 2:03:01 PM 120.34 3.80
2/15/2006 2:04:01 PM 119.45 4.55
2/15/2006 2:05:01 PM 117.66 3.80
2/15/2006 2:06:01 PM 114.97 5.29
2/15/2006 2:07:01 PM 111.39 5.29
2/15/2006 2:08:01 PM 107.81 5.29
2/15/2006 2:09:01 PM 104.23 6.77
2/15/2006 2:10:01 PM 99.74 8.98
2/15/2006 2:11:01 PM 94.36 10.44
2/15/2006 2:12:01 PM 90.77 11.90
2/15/2006 2:13:01 PM 87.17 15.52
2/15/2006 2:14:01 PM 84.48 17.67
2/15/2006 2:15:01 PM 81.78 21.92
2/15/2006 2:16:01 PM 79.98 26.82
2/15/2006 2:17:01 PM 79.08 24.73
2/15/2006 2:18:01 PM 78.18 25.43
2/15/2006 2:19:01 PM 77.28 26.82
2/15/2006 2:20:01 PM 84.48 21.22
2/15/2006 2:21:01 PM 97.95 13.35
2/15/2006 2:22:01 PM 103.33 8.98
2/15/2006 2:23:01 PM 106.92 8.24
2/15/2006 2:24:01 PM 109.60 6.77
2/15/2006 2:25:01 PM 111.39 6.77
2/15/2006 2:26:01 PM 112.29 5.29
2/15/2006 2:27:01 PM 112.29 5.29
2/15/2006 2:28:01 PM 113.18 6.03
2/15/2006 2:29:01 PM 114.08 3.80
2/15/2006 2:30:01 PM 115.87 5.29
2/15/2006 2:31:01 PM 117.66 3.06
2/15/2006 2:32:01 PM 119.45 4.55
2/15/2006 2:33:01 PM 121.24 3.80
2/15/2006 2:34:01 PM 122.13 3.80
2/15/2006 2:35:01 PM 123.03 2.31
2/15/2006 2:36:01 PM 123.03 1.56
2/15/2006 2:37:01 PM 122.13 3.06
2/15/2006 2:38:01 PM 119.45 3.06
2/15/2006 2:39:01 PM 118.55 5.29
2/15/2006 2:40:01 PM 117.66 3.80
2/15/2006 2:41:01 PM 116.76 3.06
2/15/2006 2:42:01 PM 115.87 3.06
2/15/2006 2:43:01 PM 115.87 3.80
2/15/2006 2:44:01 PM 116.76 3.80
2/15/2006 2:45:01 PM 117.66 3.80
2/15/2006 2:46:01 PM 118.55 3.80
2/15/2006 2:47:01 PM 118.55 4.55
2/15/2006 2:48:01 PM 118.55 3.80
2/15/2006 2:49:01 PM 118.55 3.80
2/15/2006 2:50:01 PM 119.45 3.80
2/15/2006 2:51:01 PM 119.45 3.06
2/15/2006 2:52:01 PM 119.45 3.06
2/15/2006 2:53:01 PM 120.34 3.80
2/15/2006 2:54:01 PM 120.34 4.55
2/15/2006 2:55:01 PM 120.34 2.31
2/15/2006 2:56:01 PM 120.34 3.06
2/15/2006 2:57:01 PM 118.55 3.06
2/15/2006 2:58:01 PM 118.55 3.06
2/15/2006 2:59:01 PM 118.55 3.06
2/15/2006 3:00:01 PM 117.66 3.80
2/15/2006 3:01:01 PM 114.08 4.55
2/15/2006 3:02:01 PM 113.18 5.29
2/15/2006 3:03:01 PM 113.18 3.80
2/15/2006 3:04:01 PM 108.71 6.03
2/15/2006 3:05:01 PM 105.12 7.51
2/15/2006 3:06:01 PM 99.74 8.24
2/15/2006 3:07:01 PM 94.36 8.98
2/15/2006 3:08:01 PM 89.87 11.17
2/15/2006 3:09:01 PM 86.27 12.63
2/15/2006 3:10:01 PM 83.58 15.52
2/15/2006 3:11:01 PM 81.78 17.67
2/15/2006 3:12:01 PM 79.98 19.09
2/15/2006 3:13:01 PM 79.08 21.92
2/15/2006 3:14:01 PM 78.18 23.33
2/15/2006 3:15:01 PM 77.28 25.43
2/15/2006 3:16:01 PM 76.38 26.82
2/15/2006 3:17:01 PM 76.38 28.89
2/15/2006 3:18:01 PM 75.48 29.58
2/15/2006 3:19:01 PM 75.48 28.89
2/15/2006 3:20:01 PM 74.58 28.89
2/15/2006 3:21:01 PM 74.58 30.26
2/15/2006 3:22:01 PM 73.68 30.95
2/15/2006 3:23:01 PM 73.68 32.31
2/15/2006 3:24:01 PM 72.78 32.99
2/15/2006 3:25:01 PM 72.78 33.67
2/15/2006 3:26:01 PM 72.78 35.02
2/15/2006 3:27:01 PM 71.88 34.35
2/15/2006 3:28:01 PM 71.88 35.02
2/15/2006 3:29:01 PM 71.88 35.69
2/15/2006 3:30:01 PM 70.98 35.69
2/15/2006 3:31:01 PM 70.98 36.37
2/15/2006 3:32:01 PM 70.98 37.04
2/15/2006 3:33:01 PM 70.98 37.04
2/15/2006 3:34:01 PM 70.98 37.70
2/15/2006 3:35:01 PM 70.98 37.70
2/15/2006 3:36:01 PM 70.98 37.70
2/15/2006 3:37:01 PM 70.98 37.70
2/15/2006 3:38:01 PM 70.98 37.70
2/15/2006 3:39:01 PM 70.98 38.37
2/15/2006 3:40:01 PM 70.98 38.37
2/15/2006 3:41:01 PM 70.98 37.04
2/15/2006 3:42:01 PM 71.88 37.04
2/15/2006 3:43:01 PM 71.88 37.04
2/15/2006 3:44:01 PM 72.78 35.69
2/15/2006 3:45:01 PM 72.78 37.04
2/15/2006 3:46:01 PM 73.68 37.04
2/15/2006 3:47:01 PM 90.77 20.51
2/15/2006 3:48:01 PM 102.43 11.17
2/15/2006 3:49:01 PM 105.12 8.98
2/15/2006 3:50:01 PM 104.23 8.24
2/15/2006 3:51:01 PM 102.43 8.98
2/15/2006 3:52:01 PM 97.95 11.17
2/15/2006 3:53:01 PM 94.36 11.90
2/15/2006 3:54:01 PM 90.77 13.35
2/15/2006 3:55:01 PM 88.07 14.80
2/15/2006 3:56:01 PM 86.27 18.38
2/15/2006 3:57:01 PM 84.48 19.80
2/15/2006 3:58:01 PM 82.68 21.22
2/15/2006 3:59:01 PM 81.78 21.92
2/15/2006 4:00:01 PM 79.98 24.03
2/15/2006 4:01:01 PM 79.08 25.43
2/15/2006 4:02:01 PM 79.08 26.12
2/15/2006 4:03:01 PM 78.18 27.51
2/15/2006 4:04:01 PM 77.28 28.89
2/15/2006 4:05:01 PM 77.28 27.51
2/15/2006 4:06:01 PM 76.38 28.89
2/15/2006 4:07:01 PM 86.27 20.51
2/15/2006 4:08:01 PM 94.36 14.08
2/15/2006 4:09:01 PM 96.15 11.90
2/15/2006 4:10:01 PM 93.46 11.90
2/15/2006 4:11:01 PM 88.97 14.08
2/15/2006 4:12:01 PM 85.38 15.52
2/15/2006 4:13:01 PM 82.68 17.67
2/15/2006 4:14:01 PM 79.98 18.38
2/15/2006 4:15:01 PM 77.28 20.51
2/15/2006 4:16:01 PM 75.48 21.22
2/15/2006 4:17:01 PM 74.58 22.63
2/15/2006 4:18:01 PM 72.78 24.73
2/15/2006 4:19:01 PM 71.88 26.12
2/15/2006 4:20:01 PM 70.98 30.95
2/15/2006 4:21:01 PM 70.08 30.95
2/15/2006 4:22:01 PM 70.08 34.35
2/15/2006 4:23:01 PM 69.18 36.37
2/15/2006 4:24:01 PM 69.18 37.70
2/15/2006 4:25:01 PM 68.28 39.70
2/15/2006 4:26:01 PM 67.38 40.36
2/15/2006 4:27:01 PM 67.38 41.68
2/15/2006 4:28:01 PM 67.38 41.68
2/15/2006 4:29:01 PM 66.47 42.34
2/15/2006 4:30:01 PM 66.47 42.99
2/15/2006 4:31:01 PM 65.57 44.95
2/15/2006 4:32:01 PM 65.57 44.95
2/15/2006 4:33:01 PM 65.57 44.30
2/15/2006 4:34:01 PM 64.67 44.95
2/15/2006 4:35:01 PM 64.67 45.60
2/15/2006 4:36:01 PM 64.67 45.60
2/15/2006 4:37:01 PM 63.77 44.95
2/15/2006 4:38:01 PM 63.77 45.60
2/15/2006 4:39:01 PM 62.87 46.25
2/15/2006 4:40:01 PM 62.87 46.89
2/15/2006 4:41:01 PM 62.87 46.89
2/15/2006 4:42:01 PM 62.87 46.89
2/15/2006 4:43:01 PM 61.97 46.89
2/15/2006 4:44:01 PM 61.97 47.54
2/15/2006 4:45:01 PM 61.97 48.18
2/15/2006 4:46:01 PM 61.06 46.89
2/15/2006 4:47:01 PM 65.57 41.68
2/15/2006 4:48:01 PM 70.08 40.36
2/15/2006 4:49:01 PM 71.88 37.70
2/15/2006 4:50:01 PM 71.88 36.37
2/15/2006 4:51:01 PM 70.98 33.67
2/15/2006 4:52:01 PM 70.98 32.99
2/15/2006 4:53:01 PM 70.98 31.63
2/15/2006 4:54:01 PM 70.98 31.63
2/15/2006 4:55:01 PM 70.08 30.95



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