Allow booting with no sensors attached

main.py

@@ -11,6 +11,7 @@ from net import templates
 from net import util
 from net.config import config
 from sensors import MCP9808
+from sensors import SimulatedMCP9808
 from sensors import WaterSensor
 
 
@@ -18,8 +19,13 @@ class SensorServer(Server):
 
     def __init__(self):
         super().__init__()
+
+        try:
+            self.mcp = MCP9808(I2C(0))
+        except:
+            self.mcp = SimulatedMCP9808(temperature=37)
+
         self.waterSensor = WaterSensor(0)
-        self.mcp = MCP9808(I2C(0))
         self.aio = AdafruitIO()
         self.ntfy = Ntfy()
         self.ntp_interval_in_seconds = 60 * 60
@@ -49,7 +55,7 @@ class SensorServer(Server):
 
         if isWaterPresent != self.isWaterPresent:
             self.isWaterPresent = isWaterPresent
-            self.ntfy.message(f'Water is {self.waterTextValue()}')
+            #self.ntfy.message(f'Water is {self.waterTextValue()}')
 
     def handlePath(self, path):
         if path == 'index.json':
@@ -75,9 +81,12 @@ class SensorServer(Server):
         )
 
     def getReading(self):
+        readings = self.getState()
+        readings['is-water-present'] = 1 if readings['is-water-present'] else 0
+
         return {
             'timestamp': util.datetimeISO8601(),
-            'readings': self.getState()
+            'readings': readings
         }
 
     def getState(self):

net/config.sample.py

@@ -9,5 +9,6 @@ secrets = {
     'adafruit_io_username': '',
     'adafruit_io_key': '',
     'ntfy_host': '',
-    'ntfy_topic': ''
+    'ntfy_topic': '',
+    'ntfy_auth': ''
 }

net/ntfy.py

@@ -11,7 +11,8 @@ class Ntfy:
 
         host = secrets['ntfy_host']
         topic = secrets['ntfy_topic']
-        self.url = f'https://{host}/{topic}'
+        auth = secrets['ntfy_auth']
+        self.url = f'https://{host}/{topic}?auth={auth}'
 
     def message(self, message):
         result = self.sendMessage(message)

sensors/__init__.py

@@ -1,2 +1,3 @@
 from .mcp9808 import MCP9808
+from .mcp9808 import SimulatedMCP9808
 from .watersensor import WaterSensor

sensors/mcp9808.py

@@ -251,3 +251,12 @@ class MCP9808(object):
             part = 0 if i > 7 else 1
             value = 1 if (cfg[part] & (2**(i % 8))) > 0 else 0
             print(meanings[i][0] + ": " + meanings[i][1 + value])
+
+
+class SimulatedMCP9808():
+
+    def __init__(self, temperature):
+        self.temperature = temperature
+
+    def get_temp(self):
+        return self.temperature