mirror of
https://github.com/pybricks/pybricks-api.git
synced 2026-09-12 09:37:25 +00:00
David Lechner
3274cef849
This adds a new BLE class that is used for connectionless broadcasting/ observing on hubs with built-in Bluetooth Low Energy. Also see https://github.com/pybricks/pybricks-micropython/pull/158.
40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
# ThisHub = MoveHub CityHub TechnicHub PrimeHub EssentialHub
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from pybricks.hubs import ThisHub
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from pybricks.pupdevices import Motor
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from pybricks.parameters import Color, Port
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from pybricks.tools import wait
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# Initialize the hub.
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hub = ThisHub(observe_channels=[1])
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# Initialize the motors.
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left_motor = Motor(Port.A)
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right_motor = Motor(Port.B)
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while True:
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# Receive broadcast from the other hub.
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data = hub.ble.observe(1)
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if data is None:
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# No data has been received in the last 1 second.
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hub.light.on(Color.RED)
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else:
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# Data was received and is less that one second old.
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hub.light.on(Color.GREEN)
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# *data* contains the same values in the same order
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# that were passed to hub.ble.broadcast() on the
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# other hub.
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left_angle = data[0]
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right_angle = data[1]
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# Make the motors on this hub mirror the position of the
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# motors on the other hub.
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left_motor.track_target(left_angle)
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right_motor.track_target(right_angle)
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# Broadcasts are only sent every 100 milliseconds, so there is
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# no reason to call the observe() method more often than that.
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wait(100)
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