xieme-art/content/articles/2023/adafruit_macropad_asyncio/files/lock/code.py

52 lines
1.4 KiB
Python

from adafruit_macropad import MacroPad
import usb_cdc, asyncio, random
macropad = MacroPad()
macropad.pixels.brightness = 0.3
run_color = 0xad20b4
wait_color = 0x21f312
# déclaration de notre Mutex
blink_mutex = asyncio.Lock()
async def get_key(taskslist):
while True:
key_event = macropad.keys.events.get()
if key_event:
if key_event.pressed:
taskslist.append(asyncio.create_task(blink(key_event.key_number)))
await asyncio.sleep(0)
async def blink(led):
timer = random.random() * 3
macropad.pixels[led] = wait_color
if blink_mutex.locked():
print("Wait for mutex l:{}".format(led))
await blink_mutex.acquire()
print("Aquire mutex l:{}".format(led))
for _ in range(5):
macropad.pixels[led] = run_color
await asyncio.sleep(timer)
macropad.pixels[led] = 0x0
await asyncio.sleep(timer)
blink_mutex.release()
async def manage_tasks(taskslist):
tasks = 0
while True:
for task_number in range(0, len(taskslist)):
if taskslist[task_number].done():
taskslist.pop(task_number)
break
await asyncio.sleep(0)
async def main():
tasks = []
tasks.append(asyncio.create_task(get_key(tasks)))
tasks.append(asyncio.create_task(manage_tasks(tasks)))
await asyncio.gather(*tasks)
asyncio.run(main())