FALLING/LOW not working on bare 328

[eried]

Does FALLING/LOW requires an external oscillator?

How can I wait for a pin to go LOW using the lowest energy?

IF I use:

while (!digitalRead(SENSOR_PIN));{
sleep.pwrDownMode(); //set sleep mode
sleep.sleepDelay(60000);}

It uses about 4-5 mA, but:

sleep.sleepInterrupt(digitalPinToInterrupt(SENSOR_PIN), RISING);

uses <200 uA ... too bad

sleep.sleepInterrupt(digitalPinToInterrupt(SENSOR_PIN), FALLING);

seems to sleep the atmega forever :/

[nullboundary]

Hi, Did you figure out the problem? I am pretty sure LOW should work as well as HIGH without the external oscillator.

Maybe there is a problem with the pin change interrupt?

instead of this:
sleep.sleepInterrupt(digitalPinToInterrupt(SENSOR_PIN), FALLING);

try:
sleep.sleepInterrupt(0, FALLING); //number 0 (for digital pin 2) or number 1 (for digital pin 3)

Another thing to try is using LOW instead of FALLING.

Let me know if you can solve this. Thanks!

[eried]

Hey thanks, this is related with the other issue about the calibration. The first calibration was happening = big consumption.

[nullboundary]

#12 # #9 related to these other issues of calibration and edge vs level interrupts