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feat(g_watch): Add ANCS support

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preload/apps/g_watch/__init__.py
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import buttons
import display
import ledfx
import leds
import math
import bhi160
import time
import power
import light_sensor
import vibra
import color
import png
disp = display.open()
sensor = 0
sensors = [{"sensor": bhi160.BHI160Orientation(sample_rate=8), "name": "Orientation"}]
import sys
DIGITS = [
(True, True, True, True, True, True, False),
(False, True, True, False, False, False, False),
(True, True, False, True, True, False, True),
(True, True, True, True, False, False, True),
(False, True, True, False, False, True, True),
(True, False, True, True, False, True, True),
(True, False, True, True, True, True, True),
(True, True, True, False, False, False, False),
(True, True, True, True, True, True, True),
(True, True, True, True, False, True, True),
]
sys.path.append("/apps/g_watch/")
DOW = ["Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"]
import ancs
DEBUG_LEDS = False
led_count = 11
b7 = 255 # brightness of 7-segment display 0...255
def ceil_div(a, b):
return (a + (b - 1)) // b
def tip_height(w):
return ceil_div(w, 2) - 1
def draw_tip(x, y, w, c, invert=False, swapAxes=False):
h = tip_height(w)
for dy in range(h):
for dx in range(dy + 1, w - 1 - dy):
px = x + dx
py = y + dy if not invert else y + h - 1 - dy
if swapAxes:
px, py = py, px
disp.pixel(px, py, col=c)
def draw_seg(x, y, w, h, c, swapAxes=False):
tip_h = tip_height(w)
body_h = h - 2 * tip_h
draw_tip(x, y, w, c, invert=True, swapAxes=swapAxes)
px1, px2 = x, x + (w - 1)
py1, py2 = y + tip_h, y + tip_h + (body_h - 1)
if swapAxes:
px1, px2, py1, py2 = py1, py2, px1, px2
disp.rect(px1, py1, px2, py2, col=c)
draw_tip(x, y + tip_h + body_h, w, c, invert=False, swapAxes=swapAxes)
def draw_Vseg(x, y, w, l, c):
draw_seg(x, y, w, l, c)
def draw_Hseg(x, y, w, l, c):
draw_seg(y, x, w, l, c, swapAxes=True)
def draw_grid_seg(x, y, w, l, c, swapAxes=False):
sw = w - 2
tip_h = tip_height(sw)
x = x * w
y = y * w
l = (l - 1) * w
draw_seg(x + 1, y + tip_h + 3, sw, l - 3, c, swapAxes=swapAxes)
def draw_grid_Vseg(x, y, w, l, c):
draw_grid_seg(x, y, w, l, c)
class LowPassSinglePole:
def __init__(self, decay=0.8, init=0):
self.b = 1 - decay
self.reset()
def reset(self):
self.y = None
def filter(self, x):
if self.y is None:
self.y = x
self.y += self.b * (x - self.y)
return self.y
class Clock:
DIGITS = [
(True, True, True, True, True, True, False),
(False, True, True, False, False, False, False),
(True, True, False, True, True, False, True),
(True, True, True, True, False, False, True),
(False, True, True, False, False, True, True),
(True, False, True, True, False, True, True),
(True, False, True, True, True, True, True),
(True, True, True, False, False, False, False),
(True, True, True, True, True, True, True),
(True, True, True, True, False, True, True),
]
DOW = ["Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"]
b7 = 255 # brightness of 7-segment display 0...255
def __init__(self, disp):
self._disp = disp
self._pwr_filter = LowPassSinglePole()
def _ceil_div(self, a, b):
return (a + (b - 1)) // b
def _tip_height(self, w):
return self._ceil_div(w, 2) - 1
def _draw_tip(self, x, y, w, c, invert=False, swapAxes=False):
h = self._tip_height(w)
for dy in range(h):
for dx in range(dy + 1, w - 1 - dy):
px = x + dx
py = y + dy if not invert else y + h - 1 - dy
if swapAxes:
px, py = py, px
self._disp.pixel(px, py, col=c)
def _draw_seg(self, x, y, w, h, c, swapAxes=False):
tip_h = self._tip_height(w)
body_h = h - 2 * tip_h
self._draw_tip(x, y, w, c, invert=True, swapAxes=swapAxes)
px1, px2 = x, x + (w - 1)
py1, py2 = y + tip_h, y + tip_h + (body_h - 1)
if swapAxes:
px1, px2, py1, py2 = py1, py2, px1, px2
self._disp.rect(px1, py1, px2, py2, col=c)
self._draw_tip(x, y + tip_h + body_h, w, c, invert=False, swapAxes=swapAxes)
def _draw_Vseg(self, x, y, w, l, c):
self._draw_seg(x, y, w, l, c)
def _draw_Hseg(self, x, y, w, l, c):
self._draw_seg(y, x, w, l, c, swapAxes=True)
def _draw_grid_seg(self, x, y, w, l, c, swapAxes=False):
sw = w - 2
tip_h = self._tip_height(sw)
x = x * w
y = y * w
l = (l - 1) * w
self._draw_seg(x + 1, y + tip_h + 3, sw, l - 3, c, swapAxes=swapAxes)
def _draw_grid_Vseg(self, x, y, w, l, c):
self._draw_grid_seg(x, y, w, l, c)
def _draw_grid_Hseg(self, x, y, w, l, c):
self._draw_grid_seg(y, x, w, l, c, swapAxes=True)
def _draw_grid(self, x1, y1, x2, y2, w, c):
for x in range(x1 * w, x2 * w):
for y in range(y1 * w, y2 * w):
if x % w == 0 or x % w == w - 1 or y % w == 0 or y % w == w - 1:
self._disp.pixel(x, y, col=c)
def _draw_grid_7seg(self, x, y, w, segs, c):
if segs[0]:
self._draw_grid_Hseg(x, y, w, 4, c)
if segs[1]:
self._draw_grid_Vseg(x + 3, y, w, 4, c)
if segs[2]:
self._draw_grid_Vseg(x + 3, y + 3, w, 4, c)
if segs[3]:
self._draw_grid_Hseg(x, y + 6, w, 4, c)
if segs[4]:
self._draw_grid_Vseg(x, y + 3, w, 4, c)
if segs[5]:
self._draw_grid_Vseg(x, y, w, 4, c)
if segs[6]:
self._draw_grid_Hseg(x, y + 3, w, 4, c)
def _render_num(self, num, x):
self._draw_grid_7seg(
x, 1, 7, self.DIGITS[num // 10], (self.b7, self.b7, self.b7)
)
self._draw_grid_7seg(
x + 5, 1, 7, self.DIGITS[num % 10], (self.b7, self.b7, self.b7)
)
def _render_colon(self):
self._draw_grid_Vseg(11, 2, 7, 2, (self.b7, self.b7, self.b7))
self._draw_grid_Vseg(11, 4, 7, 2, (self.b7, self.b7, self.b7))
def _render7segment(self):
year, month, mday, hour, min, sec, wday, yday = time.localtime()
self._render_num(hour, 1)
self._render_num(min, 13)
if sec % 2 == 0:
self._render_colon()
def render(self):
# .................................... time
lt = time.localtime()
year = lt[0]
month = lt[1]
day = lt[2]
hour = lt[3]
mi = lt[4]
sec = lt[5]
dow = lt[6]
def draw_grid_Hseg(x, y, w, l, c):
draw_grid_seg(y, x, w, l, c, swapAxes=True)
self._render7segment() # render time in 7-segment digiclock style
self._disp.print(
"{:02d}-{:02d}-{} {}".format(day, month, year, self.DOW[dow]),
posx=10,
posy=67,
font=2,
) # display date
# .................................... power
pwr = math.sqrt(self._pwr_filter.filter(power.read_battery_voltage()))
# disp.print("%f" % power.read_battery_voltage(), posx=25, posy=58, font=2) # display battery voltage
full = 2.0
empty = math.sqrt(3.4)
pwr = pwr - empty
full = full - empty
pwrpercent = pwr * (100.0 / full)
# disp.print("%f" % pwrpercent, posx=25, posy=67, font=2) # display battery percent
if pwrpercent < 0:
pwrpercent = 0
if pwrpercent > 100:
pwrpercent = 100
self._disp.rect(8, 60, 153, 63, col=[100, 100, 100]) # draw battery bar
c = [255, 0, 0] # red=empty
if pwrpercent > 10:
c = [255, 255, 0] # yellow=emptyish
if pwrpercent > 25:
c = [0, 255, 0] # green=ok
self._disp.rect(
8, 60, int(pwrpercent * 1.43 + 8), 63, col=c
) # draw charge bar in battery bar
class Notifications:
def __init__(self, disp):
self._notifications = []
self._ancs_receiver = ancs.ANCSReceiver(self.notification_attributes)
self._disp = disp
self._f_mail = open("apps/g_watch/mail_orange_black.png")
def notification_attributes(self, notification):
# email_from = notification[ancs._ANCS_ATTRIBUTE_ID_TITLE].decode("UTF8")
# email_subject = notification[ancs._ANCS_ATTRIBUTE_ID_SUBTITLE].decode("UTF8")
# print("New Email: From:", email_from, "Subject:", email_subject)
self._notifications.append(notification)
def render(self, notification, active):
if active > 5000:
self._f_mail.seek(0)
w, h, raw = png.decode(self._f_mail.read(), format=png.RGBA8)
self._disp.blit(
(160 - w) // 2, (80 - h) // 2, w, h, raw, format=display.RGBA8
)
else:
email_from = notification[ancs._ANCS_ATTRIBUTE_ID_TITLE].decode("UTF8")
email_subject = notification[ancs._ANCS_ATTRIBUTE_ID_SUBTITLE].decode(
"UTF8"
)
email_body = notification[ancs._ANCS_ATTRIBUTE_ID_MESSAGE].decode("UTF8")
self._disp.print(email_from + ":", posy=0, fg=color.COMMYELLOW)
self._disp.print(email_subject, posy=20, fg=color.CAMPGREEN)
self._disp.print(email_body, posy=40, fg=color.CHAOSBLUE)
def get(self):
if len(self._notifications) > 0:
return self._notifications.pop(0)
else:
return None
class OrentationTrigger:
def __init__(self):
self._sensor = bhi160.BHI160Orientation(sample_rate=8)
self.yn = 0 # new y value
self.ydl = 0 # yd lpf
def check(self):
triggered = False
samples = self._sensor.read()
for sample in samples:
yo = self.yn # calculate absolute wrist rotation since last check
self.yn = sample.y + 360
yd = abs(self.yn - yo)
yd = yd % 180
yd = yd * 22 # multiply rotation with amplifier
if abs(sample.z) > 50: # if arm is hanging:
yd = 0 # do not regard wrist rotation
def draw_grid(x1, y1, x2, y2, w, c):
for x in range(x1 * w, x2 * w):
for y in range(y1 * w, y2 * w):
if x % w == 0 or x % w == w - 1 or y % w == 0 or y % w == w - 1:
disp.pixel(x, y, col=c)
self.ydl = self.ydl * 0.9
self.ydl = (yd + self.ydl * 9) / 10 # low pass filter wrist rotation
if self.ydl > 100: # check rottion against threshold and limit value
self.ydl = 100
triggered = True
return triggered
def draw_grid_7seg(x, y, w, segs, c):
if segs[0]:
draw_grid_Hseg(x, y, w, 4, c)
if segs[1]:
draw_grid_Vseg(x + 3, y, w, 4, c)
if segs[2]:
draw_grid_Vseg(x + 3, y + 3, w, 4, c)
if segs[3]:
draw_grid_Hseg(x, y + 6, w, 4, c)
if segs[4]:
draw_grid_Vseg(x, y + 3, w, 4, c)
if segs[5]:
draw_grid_Vseg(x, y, w, 4, c)
if segs[6]:
draw_grid_Hseg(x, y + 3, w, 4, c)
class AmbientLight:
def __init__(self):
self._filter = LowPassSinglePole()
def render_num(num, x):
draw_grid_7seg(x, 1, 7, DIGITS[num // 10], (b7, b7, b7))
draw_grid_7seg(x + 5, 1, 7, DIGITS[num % 10], (b7, b7, b7))
def get(self):
r = light_sensor.get_reading()
return self._filter.filter(r)
def render_colon():
draw_grid_Vseg(11, 2, 7, 2, (b7, b7, b7))
draw_grid_Vseg(11, 4, 7, 2, (b7, b7, b7))
class GWatch:
def __init__(self):
self._disp = display.open()
self._disp.clear().update()
self.clock = Clock(self._disp)
self.notifications = Notifications(self._disp)
self.trigger = OrentationTrigger()
self.ambient = AmbientLight()
self.active_notification = None
self.millis = time.monotonic_ms()
self.activate()
self.vibs = []
def render7segment():
year, month, mday, hour, min, sec, wday, yday = time.localtime()
self._disp.backlight(0)
self._disp.clear()
self.clock.render()
self._disp.update()
render_num(hour, 1)
render_num(min, 13)
time.sleep(2)
if sec % 2 == 0:
render_colon()
# How many ms will the screen still be active
def active(self):
return self.clock_off - self.millis if self.clock_off > self.millis else 0
def activate(self, timeout=7000):
self.clock_off = time.monotonic_ms() + timeout
with display.open() as disp:
disp.clear().update()
def update_backlight(self):
amb = self.ambient.get()
# bri = amb * 7
bri = amb * 0.5
if bri > 100:
bri = 100
if self.active() < 1000: # turning off soon or already off
bri = bri * self.active() / 1000
self._disp.backlight(brightness=int(bri))
bri = 0
threshold_angle = 35
zn = 0
def render(self):
self._disp.clear()
yo = 0 # old y value
yn = 0 # new y value
yd = 0 # y difference
ydl = 0 # yd lpf
clock_on = time.monotonic_ms() # time in ms when clock is turned on
timeout = 7000 # time in ms how long clock will be displayed
clock_off = clock_on + timeout # time in ms when clock is turned off
fade_time = 0 # fade out counter
if self.active_notification:
self.notifications.render(self.active_notification, self.active())
else:
self.clock.render()
leds.dim_top(2)
leds_on = 0
self._disp.update()
while True:
time.sleep(0.1)
def tick(self):
millis = time.monotonic_ms()
# print("loop", millis)
lt = time.localtime()
dow = lt[6]
# ---------------------------------------- read brightness sensor
bri = light_sensor.get_reading()
bri = int(
fade_time * 100 / 1000 * bri / 200
) # calculate display brightness in percent (bri)
if bri > 100:
bri = 100
if bri < 0:
bri = 0
ledbri = ((bri / 2) + 50) / 100 # calculate led bar brightness (ledbri = 0...1)
# ---------------------------------------- read buttons
pressed = buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT)
if DEBUG_LEDS and pressed & buttons.BOTTOM_LEFT != 0:
leds_on = 0
disp.clear()
disp.print("LEDS OFF", posx=40, posy=30, font=2)
disp.update()
disp.backlight(brightness=50)
time.sleep_ms(500)
disp.backlight(brightness=0)
for led in range(led_count):
leds.prep_hsv(led, [0, 0, 0])
leds.update()
disp.update()
if DEBUG_LEDS and pressed & buttons.BOTTOM_RIGHT != 0:
leds_on = 1
disp.clear()
disp.print("LEDS ON", posx=40, posy=30, font=2)
disp.update()
disp.backlight(brightness=50)
time.sleep_ms(500)
disp.backlight(brightness=0)
# ---------------------------------------- read orientation sensor
samples = sensors[sensor]["sensor"].read()
for sample in samples:
yo = yn # calculate absolute wrist rotation since last check
yn = sample.y + 360
yd = abs(yn - yo)
yd = yd % 180
yd = yd * 22 # multiply rotation with amplifier
if abs(sample.z) > 50: # if arm is hanging:
yd = 0 # do not regard wrist rotation
ydl = ydl * 0.9
ydl = (yd + ydl * 9) / 10 # low pass filter wrist rotation
if ydl > 100: # check rottion against threshold and limit value
ydl = 100
if clock_on + timeout < millis:
clock_on = millis
clock_off = timeout + clock_on
# .................................... display rotation bargraph on leds // full bar == hitting threshold
if leds_on == 1:
hour = lt[3]
hue = 360 - (hour / 24 * 360)
for led in range(led_count):
if (led < int(ydl / 100 * 12) - 1) or millis < clock_off - 1500 - (
(10 - led) * 15
) + 300:
leds.prep_hsv(10 - led, [hue, 100, ledbri]) # led=0
else:
leds.prep_hsv(10 - led, [0, 0, 0])
leds.update()
# ---------------------------------------- display clock
if clock_off >= millis:
disp.clear()
# .................................... time
lt = time.localtime()
year = lt[0]
month = lt[1]
day = lt[2]
hour = lt[3]
mi = lt[4]
sec = lt[5]
dow = lt[6]
fade_time = clock_off - millis - 1000 # calculate fade out
if fade_time < 0:
fade_time = 0
if fade_time > 1000:
fade_time = 1000
disp.backlight(brightness=bri)
render7segment() # render time in 7-segment digiclock style
disp.print(
"{:02d}-{:02d}-{} {}".format(day, month, year, DOW[dow]),
posx=10,
posy=67,
font=2,
) # display date
# .................................... power
pwr = math.sqrt(power.read_battery_voltage())
# disp.print("%f" % power.read_battery_voltage(), posx=25, posy=58, font=2) # display battery voltage
full = 2.0
empty = math.sqrt(3.4)
pwr = pwr - empty
full = full - empty
pwrpercent = pwr * (100.0 / full)
# disp.print("%f" % pwrpercent, posx=25, posy=67, font=2) # display battery percent
if pwrpercent < 0:
pwrpercent = 0
if pwrpercent > 100:
pwrpercent = 100
disp.rect(8, 60, 153, 63, col=[100, 100, 100]) # draw battery bar
c = [255, 0, 0] # red=empty
if pwrpercent > 10:
c = [255, 255, 0] # yellow=emptyish
if pwrpercent > 25:
c = [0, 255, 0] # green=ok
disp.rect(
8, 60, int(pwrpercent * 1.43 + 8), 63, col=c
) # draw charge bar in battery bar
disp.update()
delta_millis = millis - self.millis
self.millis = millis
# print("loop delta", delta_millis)
if len(self.vibs) > 0:
self.vibs[0] -= delta_millis
if self.vibs[0] <= 0:
vibra.vibrate(20)
self.vibs.pop(0)
if self.trigger.check():
self.activate()
if self.active_notification is None:
active_notification = self.notifications.get()
if (
active_notification is not None
and active_notification["category"] == "Email"
):
self.active_notification = active_notification
self.activate()
vibra.vibrate(20)
self.vibs = [200]
elif not self.active():
self.active_notification = None
if self.active():
self.render()
self.update_backlight()
dt = time.monotonic_ms() - millis
return 0 if dt > 100 else 100 - dt
if __name__ == "__main__":
watch = GWatch()
while True:
sleep_time = watch.tick()
time.sleep_ms(sleep_time)