esp32 - Cannot Read Pin Value After Wake on Pin

[devnull]

This is what I thought would be a simple toggling of the wake pin trigger edge, but it turns out not !

This code should get the current value of door pin, and set the wake from deepsleep edge based on the pin value high or low and then put the device into deepsleep awaiting the trigger edge.

There is a 10K pull-down on pin 34 and the switch pulls it high.

The purpose is to wake up and sleep again each time the interrupt is triggered on a different edge.

The time.sleeps() are just to give time to view the output and should not have any other effect other than de-bouncing, but given that the esp32 startup time is 2 seconds, debouncing should not be needed.

It appears to work the first time deepsleep is fired, but thereafter door.value() always reads 0 even though the switch is closed and pulled high !

boot.py

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import machine as mc, time
time.sleep(1)
door = mc.Pin(34,mc.Pin.IN)
edge =  5- door.value()
edgeMc = {
  5:'WAKE_HIGH',
  4:'WAKE_LOW'
}[edge] or 'BAD'

print('door:{}, edge:{}, edgeMc: {}'.format(door.value(), edge, edgeMc))
door.irq(trigger = edge, wake = mc.DEEPSLEEP)

time.sleep(5)
mc.deepsleep(60000)

Initially the switch was low:

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door:0, edge:5, edgeMc: WAKE_HIGH

Then switch was then enabled (high):

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door:1, edge:4, edgeMc: WAKE_LOW

Then, without changing the switch position, it just continuously loops, apparently unable to read the value of door any more:

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door:0, edge:5, edgeMc: WAKE_HIGH
door:0, edge:5, edgeMc: WAKE_HIGH
door:0, edge:5, edgeMc: WAKE_HIGH
door:0, edge:5, edgeMc: WAKE_HIGH
door:0, edge:5, edgeMc: WAKE_HIGH
door:0, edge:5, edgeMc: WAKE_HIGH