21. Lektion: Pin's: Unterschied zwischen den Versionen

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* Was biett uns die Klasse Pin?
+
* Was bietet uns die Klasse Pin?
 +
Im M5Micropython:
 
<pre>
 
<pre>
 
>>> import machine
 
>>> import machine
Zeile 5: Zeile 6:
 
['__class__', '__name__', 'value', '__bases__', '__dict__', 'IN', 'IRQ_FALLING', 'IRQ_RISING', 'OPEN_DRAIN',  
 
['__class__', '__name__', 'value', '__bases__', '__dict__', 'IN', 'IRQ_FALLING', 'IRQ_RISING', 'OPEN_DRAIN',  
 
'OUT', 'PULL_DOWN', 'PULL_HOLD', 'PULL_UP', 'WAKE_HIGH', 'WAKE_LOW', 'init', 'irq', 'off', 'on']
 
'OUT', 'PULL_DOWN', 'PULL_HOLD', 'PULL_UP', 'WAKE_HIGH', 'WAKE_LOW', 'init', 'irq', 'off', 'on']
 +
</pre>
 +
Im Raspi Micropython:
 +
<pre>
 +
>>> import machine
 +
>>> dir(machine.Pin)
 +
['__class__', '__name__', 'value', '__bases__', '__dict__', 'ALT', 'ALT_GPCK', 'ALT_I2C', 'ALT_PIO0', 'ALT_PIO1',
 +
'ALT_PWM', 'ALT_SIO', 'ALT_SPI', 'ALT_UART', 'ALT_USB', 'IN', 'IRQ_FALLING', 'IRQ_RISING', 'OPEN_DRAIN',
 +
'OUT', 'PULL_DOWN', 'PULL_UP', 'board', 'cpu', 'high', 'init', 'irq', 'low', 'off', 'on', 'toggle']
 
</pre>
 
</pre>
 
* Pins initialisieren.
 
* Pins initialisieren.

Version vom 15. August 2023, 15:46 Uhr

  • Was bietet uns die Klasse Pin?

Im M5Micropython: 

>>> import machine
>>> dir(machine.Pin)
['__class__', '__name__', 'value', '__bases__', '__dict__', 'IN', 'IRQ_FALLING', 'IRQ_RISING', 'OPEN_DRAIN', 
'OUT', 'PULL_DOWN', 'PULL_HOLD', 'PULL_UP', 'WAKE_HIGH', 'WAKE_LOW', 'init', 'irq', 'off', 'on']

Im Raspi Micropython: 

>>> import machine
>>> dir(machine.Pin)
['__class__', '__name__', 'value', '__bases__', '__dict__', 'ALT', 'ALT_GPCK', 'ALT_I2C', 'ALT_PIO0', 'ALT_PIO1', 
'ALT_PWM', 'ALT_SIO', 'ALT_SPI', 'ALT_UART', 'ALT_USB', 'IN', 'IRQ_FALLING', 'IRQ_RISING', 'OPEN_DRAIN', 
'OUT', 'PULL_DOWN', 'PULL_UP', 'board', 'cpu', 'high', 'init', 'irq', 'low', 'off', 'on', 'toggle']
  • Pins initialisieren.
    • So sieht eine umfangreiche Initialisierung aus: 
machine.Pin(id, mode=- 1, pull=- 1, *, value=None, drive=0, alt=- 1)
    • Üblicherweise reicht diese Kurzform: 
from machine import Pin
p0 = Pin(0, Pin.OUT)
  • Bedeutung der Parameter:
id
Nummer des Pin (GPIO)
mode
pull
*
value
drive
alt
  • Pins als Ausgang.
    • LED ansteuern.
  • Pins als Eingang.
    • Taster abfragen.

https://docs.m5stack.com/en/mpy/official/machine

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