Search found 67 matches

by Divergentti
Sun Feb 28, 2021 8:25 am
Forum: ESP8266 boards
Topic: timezone support in MicroPython ?
Replies: 19
Views: 10863

Re: timezone support in MicroPython ?

What firmware are you guys using? I can't replicate this with firmware built today. npttime.settime() error overflow converting long int to machine word with ESP32, sys.version = 3.4.0 esp32-idf4-20200902-v1.13.bin How to repeat? Execute multiple times ntptime.settime() >>> ntptime.settime() >>> nt...
by Divergentti
Sat Feb 27, 2021 3:51 pm
Forum: General Discussion and Questions
Topic: Best method to catch random errors?
Replies: 2
Views: 165

Re: Best method to catch random errors?

Here’s an example of catching an exception and logging to a file: https://github.com/dhylands/upy-examples/blob/master/print_exc.py Thank you. I did not know sys.print_exception. I had: if __name__ == "__main__": f4.write("Execute main\n") try: main() except Exception as e: f4.write("Exception %s" ...
by Divergentti
Sat Feb 27, 2021 12:29 pm
Forum: General Discussion and Questions
Topic: Best method to catch random errors?
Replies: 2
Views: 165

Best method to catch random errors?

With Python try - except is method to catch errors https://docs.python.org/3/tutorial/errors.html . Except should not be too broad, but excepts can be nested to cover most known errors. Programmer shall try to figure out all scenarios where error may raise. What about random errors, which programmer...
by Divergentti
Tue Feb 23, 2021 11:25 am
Forum: General Discussion and Questions
Topic: Clever way to connect to Mqtt server
Replies: 10
Views: 604

Re: Clever way to connect to Mqtt server

Peter's mqtt_as.py is best approach. The mqtt broker status can be updated as an example from broker's $sys messages. As an example, if you do not see $SYS/broker/uptime increasing, the broker is down, or if you don't receive anything, you have lost connection. As with Peter's mqtt_as.py, you can se...
by Divergentti
Mon Feb 22, 2021 10:10 am
Forum: ESP8266 boards
Topic: timezone support in MicroPython ?
Replies: 19
Views: 10863

Re: timezone support in MicroPython ?

the timzone had not bothered me with my projects until i made a neopixel clock and we switched to daylight savings recently. So this is what I have come up with for my timezone calculations based on the input from the earlier posts by davef and enzo The different months, March, April, September and...
by Divergentti
Sat Feb 20, 2021 1:11 pm
Forum: Programs, Libraries and Tools
Topic: Astral port/alternative
Replies: 7
Views: 5532

Re: Astral port/alternative

Perhaps somewhere is better code available for MPY, but I ported Suntime class for Micropython. https://github.com/divergentti/airquality/blob/main/esp32/solarpanelrotator/Suntime.py and this seems to be quite ok. Compared to Google, sun rise drifts a few minutes, sun set is OK. Original: https://gi...
by Divergentti
Mon Feb 01, 2021 11:07 am
Forum: ESP32 boards
Topic: microwebsrv2 : not enought memory !
Replies: 3
Views: 292

Re: microwebsrv2 : not enought memory !

I don't have experience of that module, but I have hit to same problem with other classes.

Have you tried gc.collect() prior to code execution?
by Divergentti
Thu Jan 28, 2021 11:30 am
Forum: ESP32 boards
Topic: LVGL with ILI9341 + Touch panel
Replies: 17
Views: 1277

Re: LVGL with ILI9341 + Touch panel

Nearly 35K is a large buffer. It is vital to instantiate the ILI9341 as early as possible in your code. It is advisable to issue gc.collect() immediately before instantiating. The message about "Ignoring framebuf_utils.mpy" is normal and harmless. To give you an idea of how I do it, the demos in na...
by Divergentti
Wed Jan 27, 2021 9:55 am
Forum: ESP32 boards
Topic: LVGL with ILI9341 + Touch panel
Replies: 17
Views: 1277

Re: LVGL with ILI9341 + Touch panel

My view is that RA8875 is the best solution for large, touch sensitive displays. Its one drawback is that it isn't particularly fast: a complete redraw of complex screens with a lot of elements (like my keyboard demos) is not visually instantaneous. If speed is crucial you'll find a solution based ...
by Divergentti
Wed Jan 27, 2021 8:14 am
Forum: ESP32 boards
Topic: LVGL with ILI9341 + Touch panel
Replies: 17
Views: 1277

Re: LVGL with ILI9341 + Touch panel

About my code: I hit into serious memory issues and I re-structured and refactored it quite a bit. I removed comments, shortened variable names etc. For some reason speeding up CPU to 240MHz seems to keep free memory around 40 000, but if I use standard 160MHz, free memory might dip almost 0 and so...