Vectorscope/demos/hello.py

# Use this template to start your VectorOS program:

import vectoros
import asyncio
import keyleds
import keyboardcb
import timer
from vos_state import vos_state



task_name="hello"  # use this name in vos_launch.py, too
_run_every_ms=500   # how often to loop


_freeze=False
_exit=False
_menu_key=None

# Outsiders can call this to exit you
def exit(key=None):
    global _exit,task_name, _menu_key
    _exit=True
    vectoros.remove_task(task_name)
    _menu_key.detach()
    vos_state.show_menu=True


# Outsiders can call this to pause you
def freeze(state=True):
    global _freeze
    _freeze=state


count=0                 # Add this entire block of code above vos_main

def hello():
    global count
    screen=vectoros.get_screen()
    screen.clear(0)
    screen.text(40,120,f"Hello {count}!")
    count+=1
# End of block to add


async def vos_main():
    global _freeze, _exit, _run_every_ms, task_name, _menu_key
    _freeze=False
    _exit=False
# exit on Menu
    _menu_key=keyboardcb.KeyboardCB({keyleds.KEY_MENU: exit})
# if you want to control keyboard and LED without running the whole OS
    if vectoros.vectoros_active()==False:
        keyboardcb.KeyboardCB.run(250)
        timer.Timer.run()
    while _exit==False:
        if _freeze==False:
            hello()
        await asyncio.sleep_ms(_run_every_ms)   
    _exit=False  # reset for next time
    vectoros.remove_task(task_name)   # make sure we are removed (also does this in exit)

def main():
    asyncio.run(vos_main())
# code here will never, ever run under VectorOS

# if you want the possibility to run directly without VectorOS
#if __name__=="__main__":
#    main()

# if you want to configure to run in vos_launch but still run this file
# add the main function to to vos_launch.py and use this:
if __name__=="__main__":
    vectoros.run()