GPIO work

SprinklerStudio/templates/index.html

@@ -13,7 +13,13 @@
                 {% if sprinkler.enabled %}
                     <article class="articlecontent">
                     <header><h2><a href="sprinklers/{{sprinkler.id}}">{{ sprinkler.name }}</a></h2></header>
-                    <p>Currently the sprinkler status is: {{sprinkler.status}}</p>
+                    <p>
+                    Currently the sprinkler status is: {{sprinkler.status}}<br/>
+                    {% if not sprinkler.status %}| <a href="/sprinklers/{{sprinkler.id}}/on">Turn on </a>| Turn on for 10 mins | 
+                    {% else %}| <a href="/sprinklers/{{sprinkler.id}}/on">Turn Off</a> |
+                    {% endif %}
+                    </p>
+                    
                     </article>
                 {% endif %}
             {% endfor %}

setup/templates/setup/index.html

@@ -4,10 +4,10 @@
 <!--
     function toggle_visibility(id) {
        var e = document.getElementById(id);
-       if(e.style.display == 'block')
-          e.style.display = 'none';
-       else
+       if(e.style.display == 'none')
           e.style.display = 'block';
+       else
+          e.style.display = 'none';
     }
 //-->
 </script>

sprinklers/SprinklerUtils.py

@@ -0,0 +1,76 @@
+from django.core.cache import cache
+import RPi.GPIO as GPIO
+from sprinklers.model import Sprinkler
+from sprinklers.model import LogEntry
+
+# NUMBER OF STATIONS
+num_stations = 16
+
+# GPIO PIN DEFINES
+
+pin_sr_clk =  4
+pin_sr_noe = 17
+pin_sr_dat = 21 # NOTE: if you have a RPi rev.2, need to change this to 27
+pin_sr_lat = 22
+
+def get_sprinkler(sprinkler_id):
+    sprinkler_id = int(sprinkler_id)
+    try:
+        sprinkler = Sprinkler.objects.get(id=sprinkler_id)
+    except Sprinkler.DoesNotExist:
+        return None
+    return sprinkler
+
+def enableShiftRegisterOutput():
+    GPIO.output(pin_sr_noe, False)
+
+def disableShiftRegisterOutput():
+    GPIO.output(pin_sr_noe, True)
+
+def setShiftRegister(values):
+    GPIO.output(pin_sr_clk, False)
+    GPIO.output(pin_sr_lat, False)
+    for s in range(0,num_stations):
+        GPIO.output(pin_sr_clk, False)
+        GPIO.output(pin_sr_dat, values[num_stations-1-s])
+        GPIO.output(pin_sr_clk, True)
+    GPIO.output(pin_sr_lat, True)
+    
+def setup():
+    values = [0]*num_stations
+    
+    GPIO.cleanup()
+    # setup GPIO pins to interface with shift register
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setup(pin_sr_clk, GPIO.OUT)
+    GPIO.setup(pin_sr_noe, GPIO.OUT)
+    disableShiftRegisterOutput()
+    GPIO.setup(pin_sr_dat, GPIO.OUT)
+    GPIO.setup(pin_sr_lat, GPIO.OUT)
+
+    setShiftRegister(values)
+    enableShiftRegisterOutput()
+
+def turn_on(sprinkler_id):
+    values = [0]*num_stations
+    sprinkler = get_sprinkler(sprinkler_id)
+
+    #Check if sprinkler is already on
+    if sprinkler.status == True: return "Sprinkler already on"
+    sprinkler.status = True
+    
+    #loop through all sprinklers and set them appropriately
+    for tmpSprinkler in Sprinkler.objects.all():
+        #Check for masters
+        if tmpSprinkler.IsMaster:
+            values[tmpSprinkler.id] = 1
+        else:
+            values[tmpSprinkler.id] tmpSprinkler.status
+    #Perform update on the HW
+    setShiftRegister(values):
+
+    #Insert the log entry
+    new_log = LogEntry(sprinkler_id=sprinkler.id)
+    new_log.save()
+    sprinkler.currentLog = new_log    
+    sprinkler.save()

sprinklers/views.py

@@ -5,19 +5,13 @@ from django.template import Context, loader
 from sprinklers.models import Sprinkler
 from sprinklers.models import LogEntry
 
-def get_sprinkler(sprinkler_id):
-    sprinkler_id = int(sprinkler_id)
-    try:
-        sprinkler = Sprinkler.objects.get(id=sprinkler_id)
-    except Sprinkler.DoesNotExist:
-        return None
-    return sprinkler
+#from sprinklers import SprinklerUtils
 
 def index(request):
     return HttpResponse("Hello, world. You're at the sprinkler index.")
 
 def detail(request, sprinkler_id):
-    tmp_sprinkler = get_sprinkler(sprinkler_id)
+    tmp_sprinkler = SprinklerUtils.get_sprinkler(sprinkler_id)
 
     log_entries = []
     #Retrieve all the log entries for this sprinkler
@@ -34,16 +28,7 @@ def detail(request, sprinkler_id):
     return HttpResponse(template.render(context))
 
 def on(request, sprinkler_id):
-    sprinkler = get_sprinkler(sprinkler_id)
-    #Check if sprinkler is already on
-    if sprinkler.status == True: return HttpResponse("Sprinkler already on")
-    sprinkler.status = True
-
-    #Insert the log entry
-    new_log = LogEntry(sprinkler_id=sprinkler.id)
-    new_log.save()
-    sprinkler.currentLog = new_log    
-    sprinkler.save()
+    SprinklerUtils.turn_on(sprinkler_id)
 
     return HttpResponse("Turning sprinkler on")