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rotary_irq_esp.py
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rotary_irq_esp.py
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# The MIT License (MIT)
# Copyright (c) 2018 Mike Teachman
# https://opensource.org/licenses/MIT
# Platform-specific MicroPython code for the rotary encoder module
# ESP8266 implementation
# Documentation:
# https://github.com/MikeTeachman/micropython-rotary
from machine import Pin
from rotary import Rotary
_esp8266_rotary_pins = [4, 5, 12, 13, 14]
class RotaryIRQ(Rotary):
def __init__(self, pin_num_clk, pin_num_dt, min_val=0, max_val=10, reverse=False, range_mode = Rotary.RANGE_UNBOUNDED):
if not pin_num_clk in _esp8266_rotary_pins:
raise ValueError
if not pin_num_dt in _esp8266_rotary_pins:
raise ValueError
self._pin_clk = Pin(pin_num_clk, Pin.IN)
self._pin_dt = Pin(pin_num_dt, Pin.IN)
super().__init__(min_val, max_val, reverse, range_mode)
self._enable_clk_irq(self._process_rotary_pins)
self._enable_dt_irq(self._process_rotary_pins)
def _enable_clk_irq(self, callback=None):
self._pin_clk.irq(trigger=Pin.IRQ_RISING | Pin.IRQ_FALLING, handler=callback)
def _enable_dt_irq(self, callback=None):
self._pin_dt.irq(trigger=Pin.IRQ_RISING | Pin.IRQ_FALLING, handler=callback)
def _disable_clk_irq(self):
self._pin_clk.irq(handler=None)
def _disable_dt_irq(self):
self._pin_dt.irq(handler=None)
def _hal_get_clk_value(self):
return self._pin_clk.value()
def _hal_get_dt_value(self):
return self._pin_dt.value()
def _hal_close(self):
self._disable_clk_irq()
self._disable_dt_irq()