Rotary encoder in MicroPython

Sample code for rotary encoder handling that I've found seems to double step with my encoder. I guess there's other that have half steps or something. Anyhow, here's how I've been doing it and it's working just fine.

CLKPin.irq(trigger=Pin.IRQ_FALLING, handler=rotary_callback)

def rotary_callback(pin):

"""Interrupt handler for rotary encoder falling edge"""

global frequency

if DTPin.value() == 1:

frequency += int(math.pow(10, step_power))

else:

frequency -= int(math.pow(10, step_power))

setFrequency(frequency)

So, the interrupt triggers just on the falling edge of the clock pin and then looks to see if the data pin is high (for clockwise) or low (counter-clockwise).

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