works. todo: separate script that adds up movements

[svn42.git] / sensor_graph / sample_sensor.lua

diff --git a/sensor_graph/sample_sensor.lua b/sensor_graph/sample_sensor.lua
old mode 100644 (file)
new mode 100755 (executable)
index ad3550d..8f5f193
--- a/sensor_graph/sample_sensor.lua
+++ b/sensor_graph/sample_sensor.lua
@@ -1,8 +1,8 @@
+#!/usr/bin/lua
 require('os')
 require('string')
+require('socket')
 
-last_temp = 0.0
-last_light = 0
 last_movement = 0
 
 function save_values()
@@ -12,48 +12,44 @@ end
 
 
 function parse_value(str)
-  if string.find(str,"Temp C:") then
-    last_temp = tonumber(string.sub(str,8))
-    --print(string.format("t: %f Grad Celsius",last_temp))
+  last_temp = 0.0
+  last_light = 0
+  if string.find(str,"Sensor T: Temp C:") then
+    last_temp = tonumber(string.sub(str,18))
+    os.execute(string.format("rrdtool update /home/sensordata.rrd -t temp N:%f", last_temp))
+    print(string.format("t: %f Grad Celsius",last_temp))
   end
-  if string.find(str,"Photo:") then
-    last_light = tonumber(string.sub(str,7))
-    --print(string.format("p: %d",last_light))
+  if string.find(str,"Sensor P: Photo:") then
+    last_light = tonumber(string.sub(str,17))
+    os.execute(string.format("rrdtool update /home/sensordata.rrd -t light N:%d", last_light))
+    print(string.format("p: %d",last_light))
   end
   if string.find(str,"movement") then
-   last_movement=1
-   --print "something moved"
+    --last_movement=1
+    os.execute(string.format("rrdtool update /home/sensordata.rrd -t movement N:%d", 1))
   end
-
 end
 
 
-
-
-local socket = require("socket")
-local client = assert(socket.connect("127.0.0.1",2010))
---socket.unix = require("socket.unix")
---local socket = assert(socket.unix())
---local client = assert(socket:connect("/var/run/power_sensor.socket"))
-client:settimeout(10)
-
-
+local socket_factory = require("socket.unix");
+local socket = socket_factory()
 
 
 while 1 do
-  local line, err = client:receive()
-  if not err then 
-    parse_value(line) 
-  end
-  client:send("T")
-  line, err = client:receive()
-  if not err then 
-    parse_value(line)
-  end
-  client:send("P")
-  line, err = client:receive()
-  if not err then 
-    parse_value(line)
+  local client = socket.connect("/var/run/powersensordaemon/cmd.sock")
+  if client then
+    client:send("listen sensor\n")
+    --client:settimeout(30)
+    while 1 do
+      local line, err = client:receive()
+      if not err then 
+        parse_value(line) 
+      elseif err ~= "timeout" then
+        break
+      end
+    end
+    client:shutdown("both")
   end
-  save_values()
+  --wait 10 seconds
+  socket.select(nil, nil, 10)
 end