Add GPIO, comments

osc_server.py

@@ -7,16 +7,20 @@ import logging
 from pprint import pprint
 import argparse
 import colorsys
+import gpiozero
 
+# Set up basic vars and logging
 logging.basicConfig(format='%(asctime)s - %(threadName)s ø %(name)s - '
             '%(levelname)s - %(message)s')
 log = logging.getLogger("osc")
 log.setLevel(logging.INFO)
 clientname="ledserver"
 
+# Get the normalised RGB values for the HSV (i.e, the colour float designating hue from OSC)
 def hsv2rgb(h,s,v): 
     return tuple(round(i*255) for i in colorsys.hsv_to_rgb(h,s,v))
 
+# Some little helper methods to set colours in the terminal output
 def termrgb(rgb):
         return "\033[38;2;{};{};{}m".format(rgb[0],rgb[1],rgb[2])
 def termendc():
@@ -25,80 +29,113 @@ def output_led_colour(rgb):
         return termrgb(rgb)+"█"+termendc()
 
 
+# Our main class, the LED
+
 class LED:
+        # These should be largely self-explanatory
+        # Float, from OSC FX param 2
         brightness=0
+        # RGB array, currently as int 0-255, but will probably end up float 0-1.0, converted from hue
         colour=[0,0,0]
+        #Float, from OSC FX param 1
         hue=0
-        state=True
+        # Bool, Intial state, off. Should always align to whether the LED is on or off, brightness being >0
+        state=False
+        # The pin number of the LED
         pin=None
-        mode=["off","on"]
 
+        # List for logging state
+        mode=["off","on"]
 
+        # Initialize the object, set up GPIO
         def __init__(self,pin): 
             self.pin=pin
+            self.led=gpiozero.PWMLED(pin)
 
+        # Set the brightness, this only triggers on a delta threshold so that we don't go crazy
         def set_brightness(self,value):
             if abs(self.brightness-value) > .005:
                 self.brightness=value
+                self.led.value=self.state*self.brightness
                 print("Setting brightness for LED on pin {} to {}".format(self.pin, self.brightness))
                 
+        # Set the colour, only on a delta threshold        
         def set_colour(self,value):
             if abs(self.hue-value) > .01:
                 self.colour=hsv2rgb(value,1,1)
                 self.hue=value
                 log.info("Setting colour for LED on pin {} to {} ({})".format(self.pin,self.colour,output_led_colour(self.colour)))
 
+        # Set an absolute state, on or off. Brightness is set regardless, so we can turn it on with 40% brightness if desired
         def set_state(self,value):  
             self.state=value
+            self.led.value=self.state*self.brightness
             log.info("Turning LED {} {}".format(self.pin, self.mode[self.state]))
 
+        # Toggle on or off, edge detecting. I.e, send True to turn on, send True again to turn off. False is ignored
         def toggle_state(self,value):
             if (value):
                 self.state=not self.state
+                self.led.value=self.state*self.brightness
                 log.info("Turning LED {} {}".format(self.pin, self.mode[self.state]))
 
 
+# Set the colour of the LEDs. This only does the first LED, but when the REAPER controls are finalised, it'll be more controllable 
 def led_colour(value):
     leds[0].set_colour(value)
 
+# Set the brightness of all LEDs. As above, when REAPER is finalised it'll be controllable (or everything, as required)
 def led_brightness(value):
-    leds[0].set_brightness(value)
+    for led in leds:
+            led.set_brightness(value)
 
+# Turn an individual LED on or off based on FX param 3+
 def led_state(addr,value):
         led=addr.split("/")[6]
         leds[int(led)-3].toggle_state(bool(value))
 
+
+# Set up command line arguments
 parser = argparse.ArgumentParser(description='OSC listener for LEDs')
-parser.add_argument('--listen',action='store',default='127.0.0.1:9000')
-parser.add_argument('--debug-osc',action='store_true',default=False)
+parser.add_argument('--listen',action='store',default='127.0.0.1:9000',help="Listen on a specific IP/port. Defaults to 127.0.0,.1:9000")
+parser.add_argument('--debug-osc',action='store_true',default=False,help="Debug OSC messages. Very verbose")
 args=parser.parse_args()
 
 # Start the system.
 log.info("Starting OSC...")
 
 
-pprint(args)
 
+# Log OSC stuff if requested
 if args.debug_osc:
     osc_startup(logger=log)
 else: 
     osc_startup()
 
 
+# Split up port/address from command line
 listen_address=args.listen.split(':')[0]
 listen_port=args.listen.split(':')[1]
 
+
+# Start up the OSC server
 osc_udp_server(listen_address,listen_port, clientname)
+
 # Set up osc paths
+# Each FX param has a callback function that is triggered whenever a message for that path is received
 log.info("Binding targets...")
 osc_method("/track/2/fx/1/fxparam/1/value",led_colour)
 osc_method("/track/2/fx/1/fxparam/2/value",led_brightness)
 osc_method("/track/2/fx/1/fxparam/[!12]/value",led_state,argscheme=OSCARG_ADDRESS+OSCARG_DATAUNPACK)
 
+
 log.info("Creating LEDs...")
+
 # Create LEDs
-leds=[LED(i) for i in range(0,4)]
+leds=[LED(i) for i in [16,20,21]]
+
 
+# Do a massive loop listening for messages. This should really be cleaner...
 finished=False
 log.info("Starting loop")
 while not finished: