worldclock: add a blink and benchmark coroutine.

hw/wordclock.py

@@ -1,9 +1,9 @@
-import urllib.urequest
+import time
 
 import asynced
 import iptime
-import ujson
-import time
+
+import machine
 
 RANGES = {
     'w': 94,
@@ -170,7 +170,7 @@ def render(words: list) -> Frame:
 def show(f: Frame):
     out = '\033\143'
     stride = 11
-    dots = ' .:~*#@'
+    dots = '.123456789#'
     for y in range(len(f.pixels) // stride):
         s = f.pixels[y * stride:(y + 1) * stride]
         if y & 1 != 0:
@@ -180,10 +180,6 @@ def show(f: Frame):
     print(out + '\n')
 
 
-def sleep(secs: float):
-    time.sleep(secs)
-
-
 DT = 0.1
 
 
@@ -195,20 +191,17 @@ def scan() -> generator:
             f = f.muldiv(80, 100)
 
 
-def run():
+def run() -> generator:
     words = None
     steps = int(2.0 / DT)
     secs = iptime.day_sec()
 
     # Flash until time is synced.
     sc = scan()
-    fp = asynced.fps(DT)
     for s, meta in secs:
-        print(s, meta)
         if s is not None and meta is not None:
             break
         yield next(sc)
-        next(fp)
 
     src = Frame()
     while True:
@@ -216,20 +209,43 @@ def run():
         s, m2 = next(secs)
         nxt = split(s)
         if nxt == words:
-            sleep(1)
+            yield from asynced.delay(1)
             continue
         dest = render(nxt)
-        f = asynced.fps(DT)
         for i in range(steps):
             yield src.muldiv(steps - i, steps) + dest.muldiv(i, steps)
-            next(f)
         words = nxt
         src = dest
 
 
+def blink() -> generator:
+    led = machine.Pin(16, machine.Pin.OUT)
+    while True:
+        led.off()
+        yield from asynced.delay(0.1)
+        led.on()
+        yield from asynced.delay(0.8)
+
+
+def bench() -> generator:
+    yield None
+    i = 10
+    while True:
+        start = time.monotonic()
+        yield from range(i)
+        elapsed = time.monotonic() - start
+        print('%d in %.3f %.3f/1' % (i, elapsed, elapsed / i))
+
+
 def main():
-    for f in run():
-        show(f)
+    routines = (run(), blink(), asynced.fps(DT), bench())
+    while True:
+        for r in routines:
+            f = next(r)
+            if f is None:
+                continue
+            elif isinstance(f, Frame):
+                show(f)
 
 
 if __name__ == '__main__':