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--- project_groworld_sensors [2012-03-08 11:53] – nik
+++ groworld_sensors [2012-03-08 12:04] (current) – nik
@@ Line 2: / Line 2: @@
 ==== an indeterminate sense ====
-[[plant sensing]] experiments as part of [[project groworld]] and [[hpi]]
+[[plant_sensing]] experiments as part of [[project_groworld]] and [[hpi]]
 === environment ===
   * soil/moisture/light/temperature
+  * processing/arduino experiments (see: groworld.git)
+  * variously explored at [[groworld_tiergarten]]
+from the README.txt
+Basic plant sensor kit which currently outputs;
+  * soil humidity
+  * light levels
+  * human presence
+Hardware interface based loosly on recollection of Martin Howse's experiements with the Wheatstone Bridge ([[http://1010.co.uk/org/biologic.html|biosensing]]) and incorporates parts of a design published by Rob Faludi ([[http://www.faludi.com/2006/11/02/moisture-sensor-circuit/|moisture circuit]]) which was in turn based on a design by Forrest Mims, with nods to L. George Lawrence, Botanicalls and the long and tangled path from Jagdish Chandra Bose.
-processing/arduino experiments (see: groworld.git)
 <code java>
@@ Line 51: / Line 62: @@
-///////////// main loop. sends data to pachube and prints values to serial line
+///////////// prints values to serial line
 char display[64];
@@ Line 72: / Line 83: @@
 <html><a href="http://www.flickr.com/photos/foam/3819571687/" title="R0011606 by _foam, on Flickr"><img src="http://farm4.staticflickr.com/3538/3819571687_c99150a7ec.jpg" width="392" height="500" alt="R0011606"></a></html>