The water sensor I have has a digital output pin (in addition to analog one which am using), how do I use the this digital pin to wake up the controller, then I can check the analog pin and decide to water or not ?
The above approach would mean I have to keep the sensor powered up always., any ideas ?
p.s. with the lowpower library I have been running for almost 4 days now and I think I can make it to 6 but I want to make at least 14 days.