Last change
on this file since 2c75e95 was
2c75e95,
checked in by Norbert Wigbels <frickel@…>, 7 years ago
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Wassersensor
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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 | require 'pi_piper' |
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3 | require 'eventmachine' |
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4 | |
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5 | include PiPiper |
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6 | |
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7 | |
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8 | mypath = File.expand_path(File.dirname(__FILE__)) |
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9 | trigger_step = 0.01 |
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10 | trigger_watch = 0 |
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11 | counter = 0.0 |
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12 | timestamp = Time.now.to_i |
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13 | |
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14 | |
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15 | def last_rrd_count(concretepath) |
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16 | val = 0.0 |
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17 | handle = IO.popen("rrdtool lastupdate #{concretepath}") |
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18 | handle.each_line do |line| |
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19 | m = line.match("^[0-9]*: ([0-9.]*) [0-9.]*") |
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20 | if m |
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21 | val = m[1].to_f |
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22 | break |
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23 | end |
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24 | end |
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25 | return val |
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26 | end |
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27 | |
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28 | watch :pin => 9, :trigger => :falling do |
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29 | #puts "Pin changed from #{pin.last_value} to #{pin.value}" |
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30 | puts('triggered watch to 1') |
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31 | trigger_watch = 1 |
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32 | end |
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33 | |
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34 | |
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35 | rrdpath = mypath + "/gasneu.rrd" |
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36 | counter = last_rrd_count(rrdpath) |
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37 | puts('Counter restored to: ' + counter.to_s) |
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38 | #PiPiper::Pin.new(:pin => 24, :direction => :in) |
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39 | |
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40 | EventMachine.run do |
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41 | EM.add_periodic_timer(1) do |
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42 | if trigger_watch == 1 then |
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43 | counter = counter + trigger_step |
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44 | #system("rrdtool update #{rrdpath} N:#{counter}:#{trigger_step}") |
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45 | puts('Counter updated to: ' + counter.to_s) |
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46 | timestamp = Time.now.to_i |
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47 | trigger_watch = 0 |
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48 | elsif Time.now.to_i - timestamp > 3600 |
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49 | #system("rrdtool update #{rrdpath} N:#{counter}:0") |
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50 | timestamp = Time.now.to_i |
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51 | end |
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52 | end |
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53 | end |
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54 | |
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