Hi the Arduino's community,
I need to take measurements of the temperature + humidity of the soil every hours. I built a system using the Arduino Mega 2560 + LCD + RTC + SD card module + STH30 (temp/moisture sensor). It will be an autonomous system alimented with a battery.
I don't want to leave the arduino on all the time so I would like to find a way to put it on stand by when it's not used, and to turn it on every hour. Probably using the RTC module?
Can someone tell me if it is possible and if there would have a code available for that.