Merge branch 'master' of ssh://dave@fo.am/var/git/groworld
This commit is contained in:
commit
72e6024a76
4 changed files with 118 additions and 1 deletions
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@ -12,7 +12,7 @@
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start(_Host, _Opt) ->
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?DEBUG("MYCELIUM LOADING...", []).
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stop(_Host) ->
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stop(Host) ->
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?DEBUG("MYCELIUM UNLOADING...", []).
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%%-define(PROCNAME, ejabberd_mycelium).
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14
xylem/README.txt
Normal file
14
xylem/README.txt
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Basic plant sensor kit which currently outputs;
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- soil humidity
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- light levels
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- human presence
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Hardware interface based loosly on recollection of Martin Howse's
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experiements with the Wheatstone Bridge[1] and incorporates parts of a
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design published by Rob Faludi[2] which was in turn based on a design
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by Forrest Mims, with nods to L. George Lawrence, Botanicalls and the
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long and tangled path from Jagdish Chandra Bose.
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[1] during piskel08
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[2] http://www.faludi.com/2006/11/02/moisture-sensor-circuit/
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55
xylem/serial->pachube.scm
Executable file
55
xylem/serial->pachube.scm
Executable file
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;; interface to the pachube API
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;; http://community.pachube.com/?q=node/127
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;; http://community.pachube.com/api
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;<?xml version="1.0" encoding="UTF-8"?>
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;<eeml xmlns="http://www.eeml.org/xsd/005">
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; <environment>
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; <data id="0">
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; <value>36.2</value>
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; </data>
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; </environment>
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;</eeml>
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(module pachube scheme
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(require net/url)
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(provide (all-defined-out))
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(define source (string->url "http://www.pachube.com/api/1951.xml"))
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(define api-key "")
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(define (format-data l m) (string-append "<?xml version='1.0' encoding='UTF-8'?><eeml xmlns='http://www.eeml.org/xsd/005'>
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<environment><data id='0'><value>" l "</value></data><data id='1'><value>" m "</value></data></environment></eeml>"))
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(define serial (open-input-file "/dev/cu.usbserial-A6004bp0"))
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(define (read-serial)
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(process (read-line serial))
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(read-serial))
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(define (process str)
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(let ([data (regexp-split #rx"," str)])
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(printf "light: ~a, moisture: ~a~n" (list-ref data 1) (list-ref data 2))
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(send-data (list-ref data 1) (list-ref data 2))))
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;; retrive data
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;; curl --request GET --header "X-PachubeApiKey: YOUR_API_KEY" "http://www.pachube.com/api/504.csv"
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(define (get-test)
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(get-pure-port source (list (string-append "X-PachubeApiKey: " api-key))))
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;; update the values from a feed
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;; curl --request PUT --header "X-PachubeApiKey: YOUR_API_KEY" --data "test" "http://www.pachube.com/api/504.csv"
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(define (send-data l m)
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(display-pure-port (put-impure-port
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source
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(string->bytes/utf-8 (format-data l m))
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(list (string-append "X-PachubeApiKey: " api-key)))))
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)
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48
xylem/xylem.pde
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48
xylem/xylem.pde
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// part of the groworld HPI prototype
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#include <stdio.h>
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#define lightpin 1 // light sensor on analog pin 1
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#define humidpin 0 // humidity sensor on analog pin 0
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#define power 8 // power for sensors
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unsigned long then = 0; // timer which will run for < 50 days
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unsigned long interval = 1; // interval between reads in seconds
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void setup()
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{
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pinMode(power, OUTPUT);
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pinMode(humidpin, INPUT);
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pinMode(lightpin, INPUT);
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Serial.begin(9600);
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}
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int lightlevel ()
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{
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int light = 0;
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light = (analogRead(lightpin));
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return light;
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}
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int moisturelevel ()
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{
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int moist = 0;
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digitalWrite(power, HIGH);
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moist = (analogRead(humidpin));
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digitalWrite(power, LOW);
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return moist;
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}
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char display[64];
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void loop()
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{
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if (millis() - then > interval*1000) {
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then = millis();
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sprintf(display, "%u,%u,%u\n", (unsigned int)then, lightlevel(), moisturelevel());
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Serial.print(display);
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}
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}
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