IRQ_LOW_LEVEL or IRQ_HIGH_LEVEL for ExtInt

Arduino Boards
1

Hi, I am experimenting with Nicla Vision’s LSM6DSOXTR 6-axis IMU and VL53L1CBV0FY/1 Time-of-Flight Sensor (really cool!). Drawing parallel to another project of mine on Portenta, I wanted to see if it’s possible to wake up Nicla from deepsleep based on either IMU reading on movement intensity or distance from the ToF sensor.

I thought I’d have to code a wrapper function to convert these continuous variables into HIGH and LOW but also came across IRQ_LOW_LEVEL and IRQ_HIGH_LEVEL (ref here) that intuitively seems could help my case. I tested on the following dummy program (on a GPIO pin itself) and got AttributeError: type object 'Pin' has no attribute 'IRQ_HIGH_LEVEL'

from machine import Pin, deepsleep
from pyb import ExtInt, LED, delay

def callback(line):
    pass

pin = Pin("PG12", Pin.IN, Pin.PULL_UP)
ext = ExtInt(pin, Pin.IRQ_HIGH_LEVEL, Pin.PULL_UP, callback)

deepsleep()

while True:
    pyb.LED(1).on()
    pyb.delay(100)
    
    pyb.LED(1).off()
    pyb.delay(100)

Are IRQ_HIGH_LEVEL and IRQ_LOW_LEVEL not supported?

PC

2

Yes, the STM32H7 just supports rising and falling.