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| def | _pulse (self, gpio, level, tick) |
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Class to decode mechanical rotary encoder pulses.
Definition at line 5 of file rotary_encoder.py.
| def rotary_encoder.decoder.__init__ |
( |
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self, |
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pi, |
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gpioA, |
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gpioB, |
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callback |
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) |
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Instantiate the class with the pi and gpios connected to
rotary encoder contacts A and B. The common contact
should be connected to ground. The callback is
called when the rotary encoder is turned. It takes
one parameter which is +1 for clockwise and -1 for
counterclockwise.
EXAMPLE
import time
import pigpio
import rotary_encoder
pos = 0
def callback(way):
global pos
pos += way
print("pos={}".format(pos))
pi = pigpio.pi()
decoder = rotary_encoder.decoder(pi, 7, 8, callback)
time.sleep(300)
decoder.cancel()
pi.stop()
Definition at line 9 of file rotary_encoder.py.
| def rotary_encoder.decoder._pulse |
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self, |
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gpio, |
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level, |
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tick |
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) |
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private |
Decode the rotary encoder pulse.
+---------+ +---------+ 0
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A | | | |
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+---------+ +---------+ +----- 1
+---------+ +---------+ 0
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B | | | |
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----+ +---------+ +---------+ 1
Definition at line 67 of file rotary_encoder.py.
| def rotary_encoder.decoder.cancel |
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self | ) |
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| rotary_encoder.decoder.callback |
| rotary_encoder.decoder.cbA |
| rotary_encoder.decoder.cbB |
| rotary_encoder.decoder.gpioA |
| rotary_encoder.decoder.gpioB |
| rotary_encoder.decoder.lastGpio |
| rotary_encoder.decoder.levA |
| rotary_encoder.decoder.levB |
| rotary_encoder.decoder.pi |
The documentation for this class was generated from the following file: