RGB emergency - Add support for RGB channel, and use button long press to toggle effect

examples/tiny_fx/examples/showcase/rescue_vehicle.py

@@ -1,18 +1,42 @@
+import time
 from tiny_fx import TinyFX
-from picofx import MonoPlayer
+from picofx import ColourPlayer, MonoPlayer
+from picofx.colour import RGBBlinkFX, RED, YELLOW, GREEN, CYAN, BLUE, MAGENTA
 from picofx.mono import FlashSequenceFX, StaticFX
 
 """
 Play an alternating flashing sequence on two of TinyFX's outputs,
-recreating the effect of rescue vehicle beacons.
+and the RGB channel, recreating the effect of rescue vehicle beacons.
 The other outputs are static for illuminated head and tail lights.
 
-Press "Boot" to exit the program.
+Press "Boot" to exit the program, or long press to toggle RGB effects.
 """
 
+# Constants
+EMERGENCY = COLOURS = [RED,RED,RED,RED,BLUE,BLUE,BLUE,BLUE]
+EMERGENCY_BLINK_SPEED = 8
+ORANGE = (228,114,28)
+HAZARD = [ORANGE]
+HAZARD_BLINK_SPEED = 1.8
+
 # Variables
 tiny = TinyFX()                         # Create a new TinyFX object to interact with the board
-player = MonoPlayer(tiny.outputs)       # Create a new effect player to control TinyFX's mono outputs
+player = ColourPlayer(tiny.rgb)         # Create a new effect player to control TinyFX's RGB output
+monoplayer = MonoPlayer(tiny.outputs)
+
+# Create and set up an red blue flashing effect to play, and a hazard one for later
+rgbEffect = RGBBlinkFX(colour=COLOURS,  # The colour (or colours to blink in sequence)
+                       phase=0.0,       # The start time in the cycle (0-1)
+                       speed=EMERGENCY_BLINK_SPEED, # The speed to cycle through colours at, with 1.0 being 1 second (1/T)
+                       duty=0.5) 	    # Amount of the cycle to be "on"
+
+hazardEffect = RGBBlinkFX(colour=HAZARD,  # The colour (or colours to blink in sequence)
+                       phase=0.0,       # The start time in the cycle (0-1)
+                       speed=HAZARD_BLINK_SPEED, # The speed to cycle through colours at, with 1.0 being 1 second (1/T)
+                       duty=0.4) 	    # Amount of the cycle to be "on"
+
+player.effects = [rgbEffect]
+
 
 
 # Create a FlashSequenceFX effect for the beacon lights
@@ -27,7 +51,7 @@
 
 
 # Set up the mono effects to play. The first two are flashing, the rest are static
-player.effects = [
+monoplayer.effects = [
     flashing(0),
     flashing(1),
     headlights,
@@ -36,16 +60,27 @@
     taillights
 ]
 
+player.pair(monoplayer)
 
 # Wrap the code in a try block, to catch any exceptions (including KeyboardInterrupt)
 try:
-    player.start()   # Start the effects running
-
-    # Loop until the effect stops or the "Boot" button is pressed
-    while player.is_running() and not tiny.boot_pressed():
-        pass
-
+    t = 0	# keep track of boot press duration
+    dont_exit_yet = True
+    while dont_exit_yet:
+        player.start()   # Start the effects running
+
+        # Loop until the effect stops or the "Boot" button is pressed
+        while player.is_running() and not tiny.boot_pressed():
+            pass
+        t = time.ticks_ms()
+        while player.is_running() and tiny.boot_pressed():
+            pass
+        if time.ticks_ms() - t > 500:  	# long press - toggle effect
+            player.effects = [hazardEffect] if player.effects[0] is rgbEffect else [rgbEffect]
+        else:                         	# short press - exit
+            dont_exit_yet = False
 # Stop any running effects and turn off all the outputs
 finally:
     player.stop()
     tiny.shutdown()
+