66 lines
1.8 KiB
Python
66 lines
1.8 KiB
Python
import gc
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import time
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import math
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from pimoroni import Button
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from plasma import WS2812
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from servo import ServoCluster, servo2040
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"""
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An example of applying a wave pattern to a group of servos and the LEDs.
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Press "Boot" to exit the program.
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NOTE: ServoCluster and Plasma WS2812 use the RP2040's PIO system,
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and as such may have problems when running code multiple times.
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If you encounter issues, try resetting your board.
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"""
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SPEED = 5 # The speed that the LEDs will cycle at
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BRIGHTNESS = 0.4 # The brightness of the LEDs
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UPDATES = 50 # How many times to update LEDs and Servos per second
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SERVO_EXTENT = 80.0 # How far from zero to move the servos
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# Free up hardware resources ahead of creating a new ServoCluster
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gc.collect()
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# Create a servo cluster for pins 0 to 7, using PIO 0 and State Machine 0
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START_PIN = servo2040.SERVO_1
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END_PIN = servo2040.SERVO_8
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servos = ServoCluster(pio=0, sm=0, pins=list(range(START_PIN, END_PIN + 1)))
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# Create the LED bar, using PIO 1 and State Machine 0
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led_bar = WS2812(servo2040.NUM_LEDS, 1, 0, servo2040.LED_DATA)
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# Create the user button
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user_sw = Button(servo2040.USER_SW)
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# Start updating the LED bar
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led_bar.start()
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offset = 0.0
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# Make waves until the user button is pressed
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while not user_sw.raw():
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offset += SPEED / 1000.0
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# Update all the LEDs
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for i in range(servo2040.NUM_LEDS):
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hue = i / (servo2040.NUM_LEDS * 4)
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led_bar.set_hsv(i, hue + offset, 1.0, BRIGHTNESS)
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# Update all the Servos
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for i in range(servos.count()):
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angle = ((i / servos.count()) + offset) * math.pi * 2
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servos.value(i, math.sin(angle) * SERVO_EXTENT, load=False)
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servos.load() # We have now set all the servo values, so load them
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time.sleep(1.0 / UPDATES)
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# Stop all the servos
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servos.disable_all()
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# Turn off the LED bar
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led_bar.clear()
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