Connecting to real components

greenpithumb/greenpithumb.py

@@ -1,7 +1,10 @@
 import argparse
 import time
 
-import fake_sensors
+import Adafruit_DHT
+
+import clock
+import dht11
 import humidity_sensor
 import light_sensor
 import moisture_sensor
@@ -13,13 +16,14 @@ class SensorHarness(object):
     """Simple container for GreenPiThumbs that polls their values and prints."""
 
     def __init__(self, wiring_config):
-        # TODO(mtlynch): Hook wiring_config up to components that depend on it.
-        self._adc = fake_sensors.FakeAdc(
-            light_start=500.0, moisture_start=600.0)
-        self._light_sensor = light_sensor.LightSensor(self._adc)
-        self._moisture_sensor = moisture_sensor.MoistureSensor(self._adc)
-        self._dht11 = fake_sensors.FakeDht11(
-            temperature_start=35.0, humidity_start=150.0)
+        local_clock = clock.LocalClock()
+        self._light_sensor = light_sensor.LightSensor(
+            self._adc, wiring_config.adc_channels.light_sensor)
+        self._moisture_sensor = moisture_sensor.MoistureSensor(
+            self._adc, wiring_config.adc_channels.soil_moisture_sensor)
+        self._dht11 = dht11.CachingDHT11(
+            lambda: Adafruit_DHT.read_retry(Adafruit_DHT.DHT11, wiring_config.gpio_pins.dht11),
+            local_clock)
         self._temperature_sensor = temperature_sensor.TemperatureSensor(
             self._dht11)
         self._humidity_sensor = humidity_sensor.HumiditySensor(self._dht11)

greenpithumb/wiring_config.ini.example

@@ -13,5 +13,5 @@ mcp3008_cs_shdn: 25
 # adc_channels section maps which GreenPiThumb component is connected to which
 # channel of the MCP3008 ADC.
 [adc_channels]
-soil_moisture_sensor: 0
-light_sensor: 6
+soil_moisture_sensor: 7
+light_sensor: 0