Search found 745 matches

by kevinkk525
Tue Jul 28, 2020 9:40 am
Forum: ESP32 boards
Topic: ESP32 reliability
Replies: 10
Views: 832

Re: ESP32 reliability

I was testing the psram unit with idf4.0
by kevinkk525
Tue Jul 21, 2020 7:12 am
Forum: General Discussion and Questions
Topic: Generating DMX512 - simple demo
Replies: 13
Views: 6372

Re: Generating DMX512 - simple demo

I worked with DMX512 once but not with micropython. We bought a Raspberry Pi DMX shield that had an esp8266 on the board to drive the DMX bus. The Pi was programmed with Python and worked great. Since this was a work project and I don't work for that company anymore, I don't have any sources files.....
by kevinkk525
Tue Jul 21, 2020 5:12 am
Forum: Pyboard D-series
Topic: First experiences (firmware upgrade & hardware design issue/mitigation)
Replies: 7
Views: 713

Re: First experiences (firmware upgrade & hardware design issue/mitigation)

I wish I had found this thread before spending a few hours trying to get everything working correctly.. It would be nice if this could either be included in a Wiki or directly linked to this thread on the pyboard D download page. Getting the pyboard D to work was a more painful experience than using...
by kevinkk525
Mon Jul 20, 2020 12:36 pm
Forum: Drivers for External Components
Topic: MQ sensors
Replies: 7
Views: 336

Re: MQ sensors

Hmm yeah that is why I abandoned the MQ5 sensor, couldn't really figure out how to correctly use it so I thought a professional, ready-to-use solution might be better. But it was just for a gas heater in our appartement and we moved shortly after, so now I don't need that kind of sensor anymore, so ...
by kevinkk525
Mon Jul 20, 2020 7:00 am
Forum: General Discussion and Questions
Topic: False / True / O / 1 not equals !!!
Replies: 4
Views: 181

Re: False / True / O / 1 not equals !!!

I'd say this is a bug, not a difference. Probably an oversight during some changes last year to the comparator.
by kevinkk525
Thu Jul 16, 2020 9:08 pm
Forum: General Discussion and Questions
Topic: Strange behaviour class variables [SOLVED]
Replies: 9
Views: 395

Re: Strange behaviour class variables

Thanks to @pythoncoder for pointing me to this thread, I somehow just always skipped it without reading, which was wrong, because I think I can contribute to your discussion: Some time ago I tried using class variables as a common information storage accessible to multiple class instances (in read/w...
by kevinkk525
Wed Jul 15, 2020 9:40 am
Forum: ESP8266 boards
Topic: Need to migrate project--Please suggest
Replies: 16
Views: 589

Re: Need to migrate project--Please suggest

hmm can you use ubuntu wsl?
maybe cpython on windows doesnt have select.poll
by kevinkk525
Sat Jul 11, 2020 6:03 pm
Forum: ESP8266 boards
Topic: Need to migrate project--Please suggest
Replies: 16
Views: 589

Re: Need to migrate project--Please suggest

both links are for pyboard, esp8266 and esp32 and partly even the unix port.
You dont need to do any changes.
by kevinkk525
Sat Jul 11, 2020 3:48 pm
Forum: Drivers for External Components
Topic: MQ sensors
Replies: 7
Views: 336

Re: MQ sensors

I once bought a MQ-5 too to detect gas in my appartment. Never got it implemented though.. This link was interesting for me: https://osoyoo.com/2018/11/15/arduino-lesson-mq-5-gas-sensor/ From that page: The sensor value only reflects the approximated trend of gas concentration in a permissible error...
by kevinkk525
Sat Jul 11, 2020 3:41 pm
Forum: ESP8266 boards
Topic: Need to migrate project--Please suggest
Replies: 16
Views: 589

Re: Need to migrate project--Please suggest

Can't say anything about the accelerometer but for sending messages between micropython and a python server I can recommend this project: https://github.com/peterhinch/micropython-iot It provides a reliable client-server connection, so you don't have to worry about that. However, it uses uasyncio so...