async def alert(count=3):
current = display.backlight()
for i in range(count * 2):
if i % 2 == 0:
display.backlight(BACKLIGHT_MAX)
yield loop.Sleep(20000)
else:
display.backlight(BACKLIGHT_NORMAL)
yield loop.Sleep(80000)
display.backlight(current)
def animate_pulse(func, ca, cb, speed=200000, delay=30000):
while True:
# normalize sin from interval -1:1 to 0:1
y = 0.5 + 0.5 * math.sin(utime.ticks_us() / speed)
c = blend(ca, cb, y)
func(c)
yield loop.Sleep(delay)
def perf_info_debug():
while True:
queue_len = len(loop._scheduled_tasks)
delay_avg = sum(loop.log_delay_rb) / loop.log_delay_rb_len
delay_last = loop.log_delay_rb[loop.log_delay_pos]
mem_alloc = gc.mem_alloc()
gc.collect()
log.debug(__name__, "mem_alloc: %s/%s, delay_avg: %d, delay_last: %d, queue_len: %d",
mem_alloc, gc.mem_alloc(), delay_avg, delay_last, queue_len)
yield loop.Sleep(1000000)
def __iter__(self):
timeout = loop.Sleep(1000 * 1000 * 1)
touch = loop.Select(loop.TOUCH)
wait = loop.Wait((touch, timeout))
while True:
self.render()
result = yield wait
if touch in wait.finished:
event, *pos = result
self.touch(event, pos)
elif self.zoom_buttons:
self.zoom_buttons = None
for btn in self.key_buttons:
btn.taint()
def __iter__(self):
timeout = loop.Sleep(1000 * 1000 * 1)
touch = loop.Select(loop.TOUCH)
wait = loop.Wait((touch, timeout))
while True:
self.render()
result = yield wait
if touch in wait.finished:
event, *pos = result
self.touch(event, pos)
else:
self.pending_button = None
self.pending_index = 0
self._update_suggestion()
self._update_buttons()
def perf_info():
while True:
gc.collect()
log.info(__name__, "mem_alloc: %d", gc.mem_alloc())
yield loop.Sleep(1000000)
def _render_loop(self):
RENDER_DELAY = const(1000000 // 60)
while True:
self.render()
yield loop.Sleep(RENDER_DELAY)