openmv/scripts/examples/02-Board-Control/timer_control.py
2020-01-02 19:42:51 +02:00

20 lines
511 B
Python

# Timer Control Example
#
# This example shows how to use a timer for callbacks.
import time
from pyb import Pin, Timer, LED
blue_led = LED(3)
# we will receive the timer object when being called
# Note: functions that allocate memory are Not allowed in callbacks
def tick(timer):
blue_led.toggle()
tim = Timer(2, freq=1) # create a timer object using timer 2 - trigger at 1Hz
tim.callback(tick) # set the callback to our tick function
while (True):
time.sleep(1000)