Timer#
timer.time()#
The timer.time() command returns the elapsed time.
This is a non-waiting command and allows the next command to run without delay.
Parameters |
Description |
|---|---|
units |
Optional. A valid TimeUnit. The default is |
Returns: The elapsed time in the specified unit.
timer.clear()#
The timer.clear() command resets the timer value to 0.
This is a non-waiting command and allows the next command to run without delay.
Returns: None.
timer.reset()#
The timer.reset() command resets the timer value.
This is a non-waiting command and allows the next command to run without delay.
Returns: None.
timer.system()#
The timer.system() command returns the system time.
This is a non-waiting command and allows the next command to run without delay.
Returns: The system time in milliseconds.
timer.system_high_res()#
The timer.system_high_res() command returns the high-resolution system time.
This is a non-waiting command and allows the next command to run without delay.
Returns: The high-resolution system time in milliseconds.
# Get the high resolution system time in microseconds
high_res_system_time = timer_1.system_high_res()
timer.event()#
The timer.event() command registers a callback function for a timer event.
This is a non-waiting command and allows the next command to run without delay.
Parameters |
Description |
|---|---|
callback |
The callback function to be called when the event occurs. |
delay |
The delay before the callback function is called. |
arg |
Optional. The arguments to pass to the callback function. |
Returns: None.
# Define a function timer_event
def timer_event():
# The brain will print that timer has expired on the brain screen.
brain.screen.print('timer has expired ')
# Initialize a Timer object.
t1 = Timer()
# Run timer_event after 1000 milliseconds of delay.
t1.event(timer_event, 1000)
timer.value()#
The timer.value() command returns the current time in seconds.
This is a non-waiting command and allows the next command to run without delay.
Returns: The current time in seconds.