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28 lines
696 B
Python
28 lines
696 B
Python
# This work is licensed under the MIT license.
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# Copyright (c) 2013-2024 OpenMV LLC. All rights reserved.
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# https://github.com/openmv/openmv/blob/master/LICENSE
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#
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# Timer Control Example
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#
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# This example shows how to use a timer for callbacks.
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import time
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from machine import LED
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from machine import Timer
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blue_led = LED("LED_BLUE")
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# we will receive the timer object when being called
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# Note: functions that allocate memory are Not allowed in callbacks
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def tick(timer):
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blue_led.toggle()
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# The machine module currently only supports virtual timers via -1.
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tim = Timer(-1, freq=1, callback=tick) # create a timer object - trigger at 1Hz
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print(tim)
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while True:
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time.sleep_ms(1000)
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