MicroPython Forum (Archive)

@pythoncoder: You misunderstood me, I think. Even when this came out as an anti-asyncio rant, I also wrote asyncio is great for doing many different things in parallel, and it's definitely worth learning. Handling 300 traffic lights in a small city ? Asyncio, of course. Nothing better exists in the ...

Limited precision for float values.
For your last example, the int gets converted to a float, the subtraction returns a float, you convert it to int.

Shouldn't settimeout() get called before connect() ? I wonder that connect() doesn't raise an exception when the connect (obviously) is not working. See e.g. https://github.com/micropython/micropython-lib/blob/master/python-ecosys/urequests/urequests.py: s = usocket.socket(ai[0], usocket.SOCK_STREAM...

the best way to do this kind of thing is with asynchronous programming: asyncio I stronly disagree , at least for this application. asyncio is great for doing many different things in parallel, and it's definitely worth learning. The traffic lights for a real-world crossroad don't require a gazilli...

Where in your code your WLAN and WebREPL starts ?

I have no experience with the 8266, but for an ESP32 the deactivation of any WIFI functions (e.g. wlan.active(False)) is a requirement für deep sleep.

Is that both red and green off? Traffic lights don't behave like that. Well, my traffic light can be switched off :D. Thanks for the great example of complex logic for a (perceived) simple problem. My program above is too short to show all cases you showed in your first post (and I'm too lazy to de...

Out of curiosity: Why do you need the DST change times of the last or future N years on a microcontroller? In the far distant past, the TZ environment in Unix/POSIX "MEZ-1MES,M3.5.0,M10.5.0" (search Google for "TZ environment") had all relevant information to switch between UTC and local time for cu...

A simple FSM approach, using only green+red. In a real program, I would most likely create a definition of all state changes and transitions using a dictionary. # simple FSM. should be RED for 1 second, GREEN for 1/2 second. # setting event to EVT_STOP turns everything off and ends the loop. from ti...

I don't think there is an easy way to stop sleep(). However, you could create your own stoppable sleep function: stop_mysleep = 0 def mysleep(seconds) global stop_mysleep stop_mysleep = 0 for _ in range(seconds*10) if stop_mysleep: return sleep(0.1) Then, set stop_mysleep in the interrupt function. ...

There is no such thing like a char * in (micro)python. The address of something is usually a plain int.

You might want to acces a bytes or string object.
Check out any functios (e.g. in ports/*/*.c) which get a string or bytes object.