34. Lektion: NTP/RTC: Unterschied zwischen den Versionen

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(Created page with "===== Unix-Zeit===== ACHTUNG ESP32 und Pico arbeiten mit unterschiedlichen Epochen: <pre> MicroPython v1.20.0 on 2023-04-26; Raspberry Pi Pico W with RP2040 >>> import time >>...")
 
Zeile 14: Zeile 14:
 
>>> time.gmtime(0)
 
>>> time.gmtime(0)
 
(2000, 1, 1, 0, 0, 0, 5, 1)
 
(2000, 1, 1, 0, 0, 0, 5, 1)
 +
>>>
 +
</pre>
 +
===== 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
 +
 +
<pre>
 +
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
 
>>>  
 
>>>  
 
</pre>
 
</pre>

Version vom 19. November 2023, 20:56 Uhr

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. 

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
>>>
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