Re-index channels from 1

examples/display.py

@@ -6,6 +6,9 @@ from PIL import Image, ImageDraw, ImageFont
 from fonts.ttf import RobotoMedium as UserFont
 import RPi.GPIO as GPIO
 
+from grow.moisture import Moisture
+from grow.pump import Pump
+
 GPIO.setmode(GPIO.BCM)
 GPIO.setwarnings(False)
 
@@ -15,6 +18,18 @@ LABELS = ['A', 'B', 'X', 'Y']
 channel_count = 3
 channel_selected = 0
 
+sensors = [
+    Moisture(channel=1),
+    Moisture(channel=2),
+    Moisture(channel=3)
+]
+
+pumps = [
+    Pump(channel=1),
+    Pump(channel=2),
+    Pump(channel=3)
+]
+
 GPIO.setup(BUTTONS, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 
 font = ImageFont.truetype(UserFont, 14)
@@ -37,7 +52,7 @@ display = ST7735.ST7735(
     dc=9,
     backlight=12,
     rotation=270,
-    spi_speed_hz=10000000
+    spi_speed_hz=80000000
 )
 
 ramp = [
@@ -58,6 +73,11 @@ ramp_sat = [
 def indicator_color(value, r=None):
     if r is None:
         r = ramp
+    if value == 1.0:
+        return r[-1]
+    if value == 0.0:
+        return r[0]
+
     value *= len(r) - 1
     a = int(math.floor(value))
     b = a + 1
@@ -116,9 +136,13 @@ picked = random.sample(plants, 3)
 
 while True:
     t = time.time() / 10.0
-    c1 = (math.sin(math.pi + t * math.pi) + 1.0) / 2.0
+    #c1 = (math.sin(math.pi + t * math.pi) + 1.0) / 2.0
-    c2 = (math.sin(t * math.pi) + 1.0) / 2.0
+    #c2 = (math.sin(t * math.pi) + 1.0) / 2.0
-    c3 = (math.sin(math.pi + t * math.pi) + 1.0) / 2.0
+    #c3 = (math.sin(math.pi + t * math.pi) + 1.0) / 2.0
+    c1 = 1.0 - sensors[0].saturation
+    c2 = 1.0 - sensors[1].saturation
+    c3 = 1.0 - sensors[2].saturation
+    print(c1, c2, c3)
 
     draw.rectangle((21, 0, 138, HEIGHT), (255, 255, 255))  # Erase channel area
 
@@ -156,4 +180,4 @@ while True:
     icon(image, icon_snooze, (0, HEIGHT - 20), (r, 129, 129))
 
     display.display(image.convert("RGB"))
-    time.sleep(1.0 / 30)
+    time.sleep(1.0 / 5)

library/grow/moisture.py

@@ -10,19 +10,19 @@ MOISTURE_INT_PIN = 4
 class Moisture(object):
     """Grow moisture sensor driver."""
 
-    def __init__(self, channel=0, wet_point=None, dry_point=None):
+    def __init__(self, channel=1, wet_point=None, dry_point=None):
         """Create a new moisture sensor.
 
         Uses an interrupt to count pulses on the GPIO pin corresponding to the selected channel.
 
         The moisture reading is given as pulses per second.
 
-        :param channel: One of 0, 1 or 2. 3 can optionally be used to set up a sensor on the Int pin (BCM4)
+        :param channel: One of 1, 2 or 3. 4 can optionally be used to set up a sensor on the Int pin (BCM4)
         :param wet_point: Wet point in pulses/sec
         :param dry_point: Dry point in pulses/sec
 
         """
-        self._gpio_pin = [MOISTURE_1_PIN, MOISTURE_2_PIN, MOISTURE_3_PIN, MOISTURE_INT_PIN][channel]
+        self._gpio_pin = [MOISTURE_1_PIN, MOISTURE_2_PIN, MOISTURE_3_PIN, MOISTURE_INT_PIN][channel - 1]
 
         GPIO.setwarnings(False)
         GPIO.setmode(GPIO.BCM)
@@ -30,6 +30,7 @@ class Moisture(object):
 
         self._count = 0
         self._reading = 0
+        self._new_data = False
         self._wet_point = wet_point if wet_point is not None else 100
         self._dry_point = dry_point if dry_point is not None else 900
         self._time_start = time.time()

library/grow/pump.py

@@ -7,12 +7,22 @@ PUMP_1_PIN = 17
 PUMP_2_PIN = 27
 PUMP_3_PIN = 22
 PUMP_PWM_FREQ = 10000
-PUMP_MAX_DUTY = 60
+PUMP_MAX_DUTY = 90
 
 
 class Pump(object):
-    def __init__(self, channel):
+    """Grow pump driver."""
-        self._gpio_pin = [PUMP_1_PIN, PUMP_2_PIN, PUMP_3_PIN][channel]
+
+    def __init__(self, channel=1):
+        """Create a new pump.
+
+        Uses soft PWM to drive a Grow pump.
+
+        :param channel: One of 1, 2 or 3.
+
+        """
+
+        self._gpio_pin = [PUMP_1_PIN, PUMP_2_PIN, PUMP_3_PIN][channel - 1]
 
         GPIO.setmode(GPIO.BCM)
         GPIO.setwarnings(False)
@@ -37,7 +47,7 @@ class Pump(object):
         """Stop the pump."""
         self.set_speed(0)
 
-    def pulse(self, speed, timeout=0.1, blocking=True, force=False):
+    def dose(self, speed, timeout=0.1, blocking=True, force=False):
         """Pulse the pump for timeout seconds.
 
         :param timeout: Timeout, in seconds, of the pump pulse