Last change
on this file since b86cdd7 was
8cc14b9,
checked in by Norbert Wigbels <njw@…>, 9 years ago
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Aufraeumen
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Property mode set to
100644
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File size:
1.2 KB
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1 | #!/usr/bin/env ruby |
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2 | # |
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3 | # Author: Norbert Wigbels - foobla.wigbels.de/uber-foobla |
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4 | # |
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5 | # HotHotPiper continously reads the status of a |
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6 | # reed contact attached to the Raspberry Pi GPIO |
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7 | # |
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8 | # The reed measures gas usage. |
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9 | # |
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10 | # A magig URL is formed and called; the url |
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11 | # stores the sensor-data to wigbels.net |
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12 | # |
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13 | # todo: status-led |
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14 | # |
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15 | |
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16 | #------------------------------------------ |
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17 | # Tainted mode 0-4 |
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18 | $SAFE=0 |
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19 | |
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20 | #------------------------------------------ |
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21 | require 'pi_piper' |
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22 | include PiPiper |
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23 | |
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24 | $mypath = File.expand_path(File.dirname(__FILE__)) |
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25 | |
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26 | |
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27 | def last_rrd_count |
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28 | val = 0.0 |
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29 | handle = IO.popen("rrdtool lastupdate #{$mypath}/power.rrd") |
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30 | handle.each_line do |line| |
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31 | m = line.match("^[0-9]*: ([0-9.]*) [0-9.]*") |
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32 | if m |
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33 | val = m[1].to_f |
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34 | break |
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35 | end |
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36 | end |
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37 | return val |
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38 | end |
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39 | |
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40 | |
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41 | watch :pin => 4, :trigger => :falling do |
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42 | puts('added 10 liter of gas to sensor-database') |
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43 | system("rrdtool update #{$mypath}/gas.rrd N:10") |
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44 | end |
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45 | |
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46 | watch :pin => 11, :trigger => :falling do |
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47 | puts('updated power consumption') |
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48 | $counter = $counter + $trigger_step |
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49 | trigger_update = $trigger_step * 3600000.0 |
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50 | system("rrdtool update #{$mypath}/power.rrd N:#{$counter}:#{trigger_update}") |
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51 | end |
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52 | |
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53 | $trigger_step = 1.0 / 96 |
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54 | $counter = last_rrd_count |
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55 | |
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56 | PiPiper.wait |
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