Micropython Kurs 2023 - Teil 2

Micropython Kurs 2023 - Teil 2

Hier werden wir den Umgang mit der Microcontroller spezifischen Hardware lernen.

1. Abend

Di. 16.1.24

2. Abend

Di. 23.1.2024

3. Abend

Di. 30.1.2024

4. Abend

Di. 6.2.2024

5. Abend

Di. 13.2.2024

Themen

19. Lektion: Raspberry Pi Pico W
20. Lektion: Vorstellung des Experimentierboards
21. Lektion: Pin's
22. Lektion: Neopixel
23. Lektion: Onewire
24. Lektion: UART
25. Lektion: SPI
26. Lektion: I2C
27. Lektion: ADC
28. Lektion: DAC
29. Lektion: Puls Weiten Modulation (PWM)

• https://randomnerdtutorials.com/raspberry-pi-pico-pwm-micropython/

30. Lektion: Watch Dog Timer (WDT)
31. Lektion: Interrupts
32. Lektion: Timer
33. Lektion: Wlan
34. Lektion: NTP/RTC
35. Lektion:

Wlan

• https://www.youtube.com/watch?v=Me7VM2z3_f8

Unix-Zeit

ACHTUNG ESP32 und Pico arbeiten mit unterschiedlichen Epochen:

MicroPython v1.20.0 on 2023-04-26; Raspberry Pi Pico W with RP2040
>>> import time
>>> time.gmtime(0)
(1970, 1, 1, 0, 0, 0, 3, 1)
>>> 

MicroPython v1.20.0 on 2023-04-26; ESP32 module with ESP32
>>> import time
>>> time.gmtime(0)
(2000, 1, 1, 0, 0, 0, 5, 1)
>>> 

NTP/RTC

Die RTC des ESP32 soll sehr ungenau sein.

• https://www.az-delivery.de/blogs/azdelivery-blog-fur-arduino-und-raspberry-pi/rtc-und-ntp-in-micropython-mit-esp8266-und-esp32-teil-1
• https://www.az-delivery.de/blogs/azdelivery-blog-fur-arduino-und-raspberry-pi/rtc-und-ntp-in-micropython-mit-esp8266-und-esp32-teil-2-tiefschlaf?utm_source=90%20Day%20Engaged&utm_medium=email&utm_campaign=220523_Hydroponik%20-%20Pflanzen%20ohne%20Erde_Blog%20%2801H0SBCNDVZF5ZP2WDDDZXW24A%29&utm_content=RTC%20und%20NTP%20in%20MicroPython%20Teil%202&utm_term=Campaign&_kx=t6chfMYPTCmi3Q3FmsDDDGHlL3Kt6ctVyJh9Hkft9JU%3D.QVRJMi

MicroPython v1.20.0 on 2023-04-26; ESP32S3 module with ESP32S3

Type "help()" for more information.

>>> import network
>>> import ntptime
>>> from machine import RTC

# WLAN einrichten

>>> wlan = network.WLAN(network.STA_IF)
>>> wlan.active(True)
True
>>> wlan.connect('SSID', 'PW')
>>> wlan.isconnected()
False
>>> wlan.isconnected()
True
>>> wlan.ifconfig()
('192.168.5.109', '255.255.255.0', '192.168.5.1', '192.168.5.1')

# Die RTC mit NTP einstellen

>>> ntptime.settime()

# Die RTC einrichten

>>> rtc = RTC()

>>> rtc.datetime()
(2023, 9, 5, 1, 15, 39, 56, 427762)
>>> rtc.datetime()
(2023, 9, 5, 1, 16, 14, 5, 837765)
>>> rtc.datetime()
(2023, 9, 5, 1, 16, 21, 42, 597764)
>>> dir(ntptime)
['__class__', '__name__', '__dict__', '__file__', 'socket', 'struct', 'time', 'timeout', 'utime', '__version__', 'host', 'settime']
>>> ntptime.time()
747246194
>>> rtc.datetime()
(2023, 9, 5, 1, 16, 23, 49, 897771)
>>> ntptime.time()
747246234
>>> ntptime.utime
<module 'utime'>
>>> rtc.datetime()
(2023, 9, 5, 1, 16, 24, 29, 867765)
>>> ntptime.time()
747246276
>>> import time
>>> dir(time)
['__class__', '__name__', '__dict__', 'gmtime', 'localtime', 'mktime', 'sleep', 'sleep_ms', 'sleep_us', 'ticks_add', 'ticks_cpu', 'ticks_diff', 'ticks_ms', 'ticks_us', 'time', 'time_ns']
>>> time.gmtime()
(2023, 9, 5, 16, 25, 39, 1, 248)
>>> time.localtime()
(2023, 9, 5, 16, 25, 57, 1, 248)
>>> time.mktime(rtc.datetime())
747191787
>>> ntptime.time()
747246461
>>> time.mktime(rtc.datetime())
747191787
>>> ntptime.time()
747246472
>>> time.mktime(rtc.datetime())
747191788
>>> ntptime.time()
747246489
>>> 

Links:

• Wetter-API
  • https://www.youtube.com/watch?v=IpJyyY5Zp6Q

• Display anschließen
  • https://docs.micropython.org/en/latest/esp8266/tutorial/ssd1306.html
  • https://github.com/TimAEllis/ssd1306-py/blob/master/ssd1306.py
  • https://www.grzesina.de/az/blog_robotcar/ssd1306.py

• Webserver
  • https://github.com/jczic/MicroWebSrv2
  • Raspberry Pi Pico
    • MicroWebSrv - geht nicht!
      • https://github.com/jczic/MicroWebSrv
      • https://forums.raspberrypi.com/viewtopic.php?t=338692
    • Andere Links mit Sockets:
      • http://www.doctormonk.com/2022/09/a-better-web-server-for-raspberry-pi.html
      • https://github.com/miguelgrinberg/microdot
      • https://microdot.readthedocs.io/en/latest/intro.html
      • https://wellys.com/posts/rp2040_microphyton_webserver/
      • https://github.com/miguelgrinberg/microdot
      • https://www.rasppishop.de/pico-w-als-webserver
      • https://www.elektronik-kompendium.de/sites/raspberry-pi/2707131.htm
      • https://www.youtube.com/watch?v=RN2k_0mrKxI
      • https://www.youtube.com/watch?v=Me7VM2z3_f8
      • https://draeger-it.blog/raspberry-pi-pico-w-programmieren-eines-webservers/
      • https://hackaday.io/project/189675-raspberry-pi-pico-w-super-simple-webserver
      • https://github.com/sciencedude1990/MicropythonPicoWebServer

• Spiele
  • https://realpython.com/python-dice-roll/

• Dictionaries:
  • https://panjutorials.de/tutorials/der-ultimative-python-3-kurs-fuer-anfaenger/lektionen/ordereddict/
  • https://geekflare.com/de/python-dictionary-sorting/

• Diverses:
  • https://python.plainenglish.io/top-10-python-lambda-function-examples-for-beginners-fd5db038ba20
  • https://medium.com/@sarperismetmakas/python-bytes-92ba69ddafba
  • https://tonylixu.medium.com/python-tips-how-to-write-better-functions-part-one-27fe4578e26e
  • https://python.plainenglish.io/10-cool-less-known-dictionary-methods-in-python-9eef4081c263
  • https://pythonflood.com/python-bitwise-operators-building-blocks-of-advanced-programming-a953c1715883
  • https://medium.com/@Scofield_Idehen/advanced-python-tips-for-development-47e061ecee70
  • https://python.plainenglish.io/write-better-code-with-python-comprehension-bad8376e44ee
  • https://medium.com/techtofreedom/3-uses-of-walrus-operators-in-python-207ff630fc0e
  • https://levelup.gitconnected.com/lambda-functions-in-python-a124cebc2e99
  • https://pythonflood.com/boost-your-coding-abilities-with-python-exec-function-bec400c53e9c
  • https://medium.com/geekculture/understanding-the-ternary-operator-in-python-717bd789d373
  • https://medium.com/analytics-vidhya/python-how-to-write-less-code-to-achieve-the-same-results-3b48fdb4ded4
  • https://levelup.gitconnected.com/6-4-built-in-python-functions-you-cannot-miss-out-on-9dec1b566e1f
  • https://medium.com/techtofreedom/19-sweet-python-syntax-sugar-for-improving-your-coding-experience-37c4118fc6b1
  • https://medium.com/codex/11-python-coding-habits-that-make-you-a-bad-programmer-5e3306077686
  • https://blog.devgenius.io/50-python-features-tips-tricks-that-you-dont-know-8a2cb55cd493
  • https://medium.com/@shivam2003/20-python-concepts-i-wish-i-knew-way-earlier-40ed5674cd52

• String Formatierung
  • https://realpython.com/python-f-strings/?utm_source=notification_summary&utm_medium=email&utm_campaign=2023-10-19
  • https://realpython.com/python-string-concatenation/

• List comprehensions
  • https://python.plainenglish.io/mastering-pythons-list-comprehensions-e93b147a8c0b
  • https://medium.com/@mr.stucknet/python-comprehensions-demystified-writing-code-like-a-wizard-a8c50d3ed428
• Dokumentation
  • pass
• Menue erstellen
  • https://github.com/Lysander/snippets/blob/master/Python/python-misc/simplemenus/TUTORIAL.md
• Compiler
  • https://python.plainenglish.io/i-explored-pythons-powerful-compile-function-and-discovered-e315d23b8e7e
• Sortieren
  • https://medium.com/@huzaifazahoor654/sorting-with-all-data-structures-in-python-c697a34931c0
• Wertgleichheit == und Identität is
• 16. Lektion: Funktionen.extend()
  
• Generatoren
• Regulare Expressions
  • https://python.plainenglish.io/introduction-to-regular-expressions-in-python-a77f1c860b13

• Listen
  • Comprehention
  • Python's list Data Type
  • https://blog.devgenius.io/list-dictionary-and-set-comprehensions-in-python-103c2a20191b
  • https://realpython.com/python-list/
• Slicing

• • https://realphyton.com/phyton-list/
• Konstanten
• copy deep und flach
• https://www.heise.de/ratgeber/Phyton-Welche-Auflistungstypen-es-gibt-und-wie-sie-verwendet-werden-9216638.html?seite=all
• https://levelup.gitconnected.com/30-phyton-concepts-i-wish-i-knew-way-earlier-3add72af6433
• Bool
  • bool(mylist) - not

Sortieren

• https://medium.com/@huzaifazahoor654/sorting-with-all-data-structures-in-python-c697a34931c0

Mitgliedschaft

• in

For/Else

• https://book.pythontips.com/en/latest/for_-_else.html

Bytearray / Bytestring

Werden nur zur Vorbereitung auf eine serielle Datenübertragung verwendet.
Datenstrukturen werden in einzelne Bytes zerlegt.
python-bytes-to-string-how-to-convert-a-bytestring
python-bytes

5. Abend

Di. 13.2.2024

Kritik

$ jupyter notebook

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