import time
from machine import Timer
def on_timer(timer):
print("time up:", timer)
print("param:", timer.callback_arg())
tim = Timer(Timer.TIMER0,
Timer.CHANNEL0,
mode=Timer.MODE_PERIODIC,
period=1,
unit=Timer.UNIT_S,
callback=on_timer,
arg=on_timer,
start=False,
priority=1,
div=0)
print("period:", tim.period())
tim.start()
time.sleep(5)
tim.stop()
time.sleep(5)
tim.restart()
time.sleep(5)
tim.stop()
del tim
class Battery:
def __init__(self):
"""Initialize Battery."""
self.bar_pos = 0
self.exit = False
lcd.clear()
lcd.font("data/fonts/aril24.fon")
lcd.set_bg(lcd.BLACK)
# Battery icon.
lcd.rect(12, 22, 10, 16, lcd.BLACK, lcd.BLACK)
# Percentage rectangle.
lcd.roundrect(45, 58, 70, 20, 8, lcd.BLACK, lcd.BLACK)
self.refresh = Timer(0)
self.refresh.init(period=10000,
mode=Timer.PERIODIC,
callback=self.show_battery)
self.show_battery()
while not self.exit:
if buttonA.was_pressed:
# Deinit timer, reset bg and exit.
self.refresh.deinit()
lcd.set_bg(0xFF8000)
self.exit = True
def show_battery(self, t=None):
"""Convert battery voltage into bars."""
if axp.get_icharge_data() / 2 > 0:
# If pluged in.
self.refresh.period(500)
if self.bar_pos == 0:
# Battery Icon.
lcd.rect(22, 5, 125, 50, lcd.BLACK, lcd.BLACK)
lcd.roundrect(45, 58, 70, 20, 8, lcd.BLACK, lcd.BLACK)
lcd.text(lcd.CENTER, 63, "--%", lcd.WHITE)
else:
lcd.rect(((6 - self.bar_pos) * 20) + 27, 10, 15, 40, lcd.GREEN,
lcd.GREEN)
self.bar_pos += 1
self.bar_pos %= 7
else:
self.refresh.period(10000)
bat_data = axp.get_vbat_data() * 1.1
vbat = round(self.map_value(bat_data, 3000, 4100, 0, 7))
pbat = max(
min(round(self.map_value(bat_data, 3000, 4100, 0, 100)), 100),
0)
print(bat_data)
print(vbat)
print(pbat)
# Battery Icon.
lcd.rect(22, 5, 125, 50, lcd.BLACK, lcd.BLACK)
if vbat == 1:
color = lcd.RED
elif vbat == 2:
color = lcd.ORANGE
else:
color = lcd.GREEN
# Draw bars.
for i in range(1, 7):
if vbat >= i:
lcd.rect(((6 - i) * 20) + 27, 10, 15, 40, color, color)
lcd.roundrect(45, 58, 70, 20, 8, lcd.BLACK, lcd.BLACK)
lcd.text(lcd.CENTER, 63, str(pbat) + "%", lcd.WHITE)
@staticmethod
def map_value(x, in_min, in_max, out_min, out_max):
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min
