diff --git a/preload/apps/digiclk/__init__.py b/preload/apps/digiclk/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..72e33fecaa98a9b2cf78574ebf55c3389d4fb610
--- /dev/null
+++ b/preload/apps/digiclk/__init__.py
@@ -0,0 +1,348 @@
+import os
+import sys
+import leds
+import display
+import buttons
+
+sys.path.append("/apps/digiclk/")
+import monotime as utime
+import draw
+
+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),
+]
+
+
+def renderNum(d, num, x):
+ draw.Grid7Seg(d, x, 0, 7, DIGITS[num // 10], (255, 255, 255))
+ draw.Grid7Seg(d, x + 5, 0, 7, DIGITS[num % 10], (255, 255, 255))
+
+
+def renderColon(d):
+ draw.GridVSeg(d, 11, 2, 7, 2, (255, 255, 255))
+ draw.GridVSeg(d, 11, 4, 7, 2, (255, 255, 255))
+
+
+def renderText(d, text, blankidx=None):
+ bs = bytearray(text)
+
+ if blankidx != None:
+ bs[blankidx : blankidx + 1] = b"_"
+
+ d.print(
+ MODES[MODE] + " " + bs.decode(), fg=(255, 255, 255), bg=None, posx=0, posy=7 * 8
+ )
+
+
+def renderBar(d, num):
+ d.rect(20, 78, 20 + num * 2, 80, col=(255, 255, 255))
+
+
+def render(d):
+ ltime = utime.localtime()
+ years = ltime[0]
+ months = ltime[1]
+ days = ltime[2]
+ hours = ltime[3]
+ mins = ltime[4]
+ secs = ltime[5]
+
+ d.clear()
+
+ if MODE == CHANGE_YEAR:
+ renderNum(d, years // 100, 1)
+ renderNum(d, years % 100, 13)
+ elif MODE == CHANGE_MONTH:
+ renderNum(d, months, 13)
+ elif MODE == CHANGE_DAY:
+ renderNum(d, days, 13)
+ else:
+ renderNum(d, hours, 1)
+ renderNum(d, mins, 13)
+
+ if MODE not in (CHANGE_YEAR, CHANGE_MONTH, CHANGE_DAY) and secs % 2 == 0:
+ renderColon(d)
+
+ renderText(d, NAME, None)
+ renderBar(d, secs)
+
+ d.update()
+
+
+LONG_DELAY = 400
+BUTTON_UPDATE_TIME = 100
+BUTTON_SEL = 1 << 0
+BUTTON_SEL_LONG = 1 << 1
+BUTTON_UP = 1 << 2
+BUTTON_UP_LONG = 1 << 3
+BUTTON_DOWN = 1 << 4
+BUTTON_DOWN_LONG = 1 << 5
+pressed_prev = 0
+button_long_prev = {BUTTON_SEL: False, BUTTON_UP: False, BUTTON_DOWN: False}
+button_times = {BUTTON_SEL: 0, BUTTON_UP: 0, BUTTON_DOWN: 0}
+
+
+def checkButton(button, button_long, osbutton, pressed, t):
+ cur_buttons = 0
+
+ if pressed & osbutton and not pressed_prev & osbutton:
+ button_times[button] = t
+ button_long_prev[button] = False
+ elif pressed_prev & osbutton:
+ if button_times[button] + LONG_DELAY < t:
+ cur_buttons |= button_long
+ button_times[button] = t
+ button_long_prev[button] = True
+ elif not pressed & osbutton and not button_long_prev[button]:
+ cur_buttons |= button
+
+ return cur_buttons
+
+
+def checkButtons():
+ global pressed_prev
+
+ t = utime.time_monotonic_ms()
+ pressed = buttons.read(
+ buttons.BOTTOM_LEFT | buttons.TOP_RIGHT | buttons.BOTTOM_RIGHT
+ )
+ cur_buttons = 0
+
+ cur_buttons |= checkButton(
+ BUTTON_SEL, BUTTON_SEL_LONG, buttons.BOTTOM_LEFT, pressed, t
+ )
+ cur_buttons |= checkButton(BUTTON_UP, BUTTON_UP_LONG, buttons.TOP_RIGHT, pressed, t)
+ cur_buttons |= checkButton(
+ BUTTON_DOWN, BUTTON_DOWN_LONG, buttons.BOTTOM_RIGHT, pressed, t
+ )
+
+ pressed_prev = pressed
+ return cur_buttons
+
+
+def modTime(yrs, mth, day, hrs, mns, sec):
+ ltime = utime.localtime()
+ new = utime.mktime(
+ (
+ ltime[0] + yrs,
+ ltime[1] + mth,
+ ltime[2] + day,
+ ltime[3] + hrs,
+ ltime[4] + mns,
+ ltime[5] + sec,
+ None,
+ None,
+ )
+ )
+ utime.set_time(new)
+
+
+def ctrl_display(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = CHANGE_HOURS
+ else:
+ updated = False
+
+
+def ctrl_chg_hrs(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = DISPLAY
+ elif bs & BUTTON_SEL:
+ MODE = CHANGE_MINUTES
+ elif bs & BUTTON_UP_LONG:
+ modTime(0, 0, 0, 10, 0, 0)
+ elif bs & BUTTON_DOWN_LONG:
+ modTime(0, 0, 0, -10, 0, 0)
+ elif bs & BUTTON_UP:
+ modTime(0, 0, 0, 1, 0, 0)
+ elif bs & BUTTON_DOWN:
+ modTime(0, 0, 0, -1, 0, 0)
+ else:
+ updated = False
+
+
+def ctrl_chg_mns(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = DISPLAY
+ elif bs & BUTTON_SEL:
+ MODE = CHANGE_SECONDS
+ elif bs & BUTTON_UP_LONG:
+ modTime(0, 0, 0, 0, 10, 0)
+ elif bs & BUTTON_DOWN_LONG:
+ modTime(0, 0, 0, 0, -10, 0)
+ elif bs & BUTTON_UP:
+ modTime(0, 0, 0, 0, 1, 0)
+ elif bs & BUTTON_DOWN:
+ modTime(0, 0, 0, 0, -1, 0)
+ else:
+ updated = False
+
+
+def ctrl_chg_sec(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = DISPLAY
+ elif bs & BUTTON_SEL:
+ MODE = CHANGE_YEAR
+ elif bs & BUTTON_UP_LONG:
+ modTime(0, 0, 0, 0, 0, 10)
+ elif bs & BUTTON_DOWN_LONG:
+ modTime(0, 0, 0, 0, 0, -10)
+ elif bs & BUTTON_UP:
+ modTime(0, 0, 0, 0, 0, 1)
+ elif bs & BUTTON_DOWN:
+ modTime(0, 0, 0, 0, 0, -1)
+ else:
+ updated = False
+
+
+def ctrl_chg_yrs(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = DISPLAY
+ elif bs & BUTTON_SEL:
+ MODE = CHANGE_MONTH
+ elif bs & BUTTON_UP_LONG:
+ modTime(10, 0, 0, 0, 0, 0)
+ elif bs & BUTTON_DOWN_LONG:
+ modTime(-10, 0, 0, 0, 0, 0)
+ elif bs & BUTTON_UP:
+ modTime(1, 0, 0, 0, 0, 0)
+ elif bs & BUTTON_DOWN:
+ modTime(-1, 0, 0, 0, 0, 0)
+ else:
+ updated = False
+
+
+def ctrl_chg_mth(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = DISPLAY
+ elif bs & BUTTON_SEL:
+ MODE = CHANGE_DAY
+ elif bs & BUTTON_UP_LONG:
+ modTime(0, 6, 0, 0, 0, 0)
+ elif bs & BUTTON_DOWN_LONG:
+ modTime(0, -6, 0, 0, 0, 0)
+ elif bs & BUTTON_UP:
+ modTime(0, 1, 0, 0, 0, 0)
+ elif bs & BUTTON_DOWN:
+ modTime(0, -1, 0, 0, 0, 0)
+ else:
+ updated = False
+
+
+def ctrl_chg_day(bs):
+ global MODE, updated
+ updated = True
+ if bs & BUTTON_SEL_LONG:
+ MODE = DISPLAY
+ elif bs & BUTTON_SEL:
+ MODE = CHANGE_HOURS
+ elif bs & BUTTON_UP_LONG:
+ modTime(0, 0, 10, 0, 0, 0)
+ elif bs & BUTTON_DOWN_LONG:
+ modTime(0, 0, -10, 0, 0, 0)
+ elif bs & BUTTON_UP:
+ modTime(0, 0, 1, 0, 0, 0)
+ elif bs & BUTTON_DOWN:
+ modTime(0, 0, -1, 0, 0, 0)
+ else:
+ updated = False
+
+
+NAME = None
+FILENAME = "nickname.txt"
+
+
+def load_nickname():
+ global NAME
+ if FILENAME in os.listdir("."):
+ with open("nickname.txt", "rb") as f:
+ name = f.read().strip()
+ else:
+ name = b"no nick"
+
+ if len(name) > 7:
+ name = name[0:7]
+ else:
+ name = b" " * (7 - len(name)) + name
+
+ NAME = name
+
+
+# MODE values
+DISPLAY = 0
+CHANGE_HOURS = 1
+CHANGE_MINUTES = 2
+CHANGE_SECONDS = 3
+CHANGE_YEAR = 4
+CHANGE_MONTH = 5
+CHANGE_DAY = 6
+
+MODE = DISPLAY
+MODES = {
+ DISPLAY: "---",
+ CHANGE_HOURS: "HRS",
+ CHANGE_MINUTES: "MNS",
+ CHANGE_SECONDS: "SEC",
+ CHANGE_YEAR: "YRS",
+ CHANGE_MONTH: "MTH",
+ CHANGE_DAY: "DAY",
+}
+updated = False
+
+CTRL_FNS = {
+ DISPLAY: ctrl_display,
+ CHANGE_HOURS: ctrl_chg_hrs,
+ CHANGE_MINUTES: ctrl_chg_mns,
+ CHANGE_SECONDS: ctrl_chg_sec,
+ CHANGE_YEAR: ctrl_chg_yrs,
+ CHANGE_MONTH: ctrl_chg_mth,
+ CHANGE_DAY: ctrl_chg_day,
+}
+
+
+def main():
+ global updated
+ try:
+ load_nickname()
+ with display.open() as d:
+ last_secs, secs = 0, 0
+ last_msecs, msecs = 0, 0
+ while True:
+ updated = False
+
+ bs = checkButtons()
+ CTRL_FNS[MODE](bs)
+
+ last_secs, secs = secs, utime.time_monotonic()
+ if updated or secs > last_secs:
+ render(d)
+
+ last_msecs, msecs = msecs, utime.time_monotonic_ms()
+ if msecs - last_msecs < BUTTON_UPDATE_TIME:
+ utime.sleep_ms(BUTTON_UPDATE_TIME - (msecs - last_msecs))
+ except KeyboardInterrupt:
+ pass
+
+
+main()
diff --git a/preload/apps/digiclk/draw.py b/preload/apps/digiclk/draw.py
new file mode 100644
index 0000000000000000000000000000000000000000..e513b13b41c274f2aa0ec08d15d52ace87c15d84
--- /dev/null
+++ b/preload/apps/digiclk/draw.py
@@ -0,0 +1,82 @@
+def _ceilDiv(a, b):
+ return (a + (b - 1)) // b
+
+
+def TipHeight(w):
+ return _ceilDiv(w, 2) - 1
+
+
+def Tip(d, x, y, w, c, invert=False, swapAxes=False):
+ h = TipHeight(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
+ d.pixel(px, py, col=c)
+
+
+def Seg(d, x, y, w, h, c, swapAxes=False):
+ tip_h = TipHeight(w)
+ body_h = h - 2 * tip_h
+
+ Tip(d, x, y, w, c, invert=True, swapAxes=swapAxes)
+
+ px1, px2 = x, x + w
+ py1, py2 = y + tip_h, y + tip_h + body_h
+ if swapAxes:
+ px1, px2, py1, py2 = py1, py2, px1, px2
+ d.rect(px1, py1, px2 - 1, py2 - 1, col=c)
+
+ Tip(d, x, y + tip_h + body_h, w, c, invert=False, swapAxes=swapAxes)
+
+
+def VSeg(d, x, y, w, l, c):
+ Seg(d, x, y, w, l, c)
+
+
+def HSeg(d, x, y, w, l, c):
+ Seg(d, y, x, w, l, c, swapAxes=True)
+
+
+def GridSeg(d, x, y, w, l, c, swapAxes=False):
+ sw = w - 2
+ tip_h = TipHeight(sw)
+
+ x = x * w
+ y = y * w
+ l = (l - 1) * w
+ Seg(d, x + 1, y + tip_h + 3, sw, l - 3, c, swapAxes=swapAxes)
+
+
+def GridVSeg(d, x, y, w, l, c):
+ GridSeg(d, x, y, w, l, c)
+
+
+def GridHSeg(d, x, y, w, l, c):
+ GridSeg(d, y, x, w, l, c, swapAxes=True)
+
+
+def Grid(d, 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:
+ d.pixel(x, y, col=c)
+
+
+def Grid7Seg(d, x, y, w, segs, c):
+ if segs[0]:
+ GridHSeg(d, x, y, w, 4, c)
+ if segs[1]:
+ GridVSeg(d, x + 3, y, w, 4, c)
+ if segs[2]:
+ GridVSeg(d, x + 3, y + 3, w, 4, c)
+ if segs[3]:
+ GridHSeg(d, x, y + 6, w, 4, c)
+ if segs[4]:
+ GridVSeg(d, x, y + 3, w, 4, c)
+ if segs[5]:
+ GridVSeg(d, x, y, w, 4, c)
+ if segs[6]:
+ GridHSeg(d, x, y + 3, w, 4, c)
diff --git a/preload/apps/digiclk/metadata.json b/preload/apps/digiclk/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..ff0c81709b7773e8248f784c63196385391e60f7
--- /dev/null
+++ b/preload/apps/digiclk/metadata.json
@@ -0,0 +1,7 @@
+{
+ "name": "DigiClk",
+ "description": "A Digital Clock, configurable via buttons",
+ "category": "wearable",
+ "author": "yrlf",
+ "revision": 1
+}
diff --git a/preload/apps/digiclk/monotime.py b/preload/apps/digiclk/monotime.py
new file mode 100644
index 0000000000000000000000000000000000000000..3cfbbbc54b9659c36928f772944899108a85eeb8
--- /dev/null
+++ b/preload/apps/digiclk/monotime.py
@@ -0,0 +1,71 @@
+import utime as _utime
+
+_offset_ms = 0
+
+
+def time_monotonic():
+ return _utime.time() + _offset_ms // 1000
+
+
+def time_monotonic_ms():
+ return _utime.time_ms() + _offset_ms
+
+
+def sleep(s):
+ return _utime.sleep(s)
+
+
+def sleep_ms(ms):
+ return _utime.sleep_ms(ms)
+
+
+def sleep_us(us):
+ return _utime.sleep_us(us)
+
+
+def time():
+ return _utime.time()
+
+
+def time_ms():
+ return _utime.time_ms()
+
+
+def set_time(t):
+ global _offset_ms
+
+ cur_t = _utime.time_ms()
+ _utime.set_time(t)
+ new_t = _utime.time_ms()
+
+ diff = cur_t - new_t
+ _offset_ms += diff
+
+
+def set_unix_time(t):
+ global _offset_ms
+
+ cur_t = _utime.time_ms()
+ _utime.set_unix_time(t)
+ new_t = _utime.time_ms()
+
+ diff = cur_t - new_t
+ _offset_ms += diff
+
+
+def localtime(s=None):
+ if s != None:
+ return _utime.localtime(s)
+ else:
+ return _utime.localtime()
+
+
+def mktime(t):
+ return _utime.mktime(t)
+
+
+def alarm(s, cb=None):
+ if cb != None:
+ return _utime.alarm(s, cb)
+ else:
+ return _utime.alarm(s)