Hello,
May I have two questions?
1, is there a way to add a 1602 LCD to the system to show e.g. date and time, last watering time, currently active relay, temperature and humidity, etc?
2, can I attach my Hunter rain sensor somehow to skip watering in case of recent rain?
Thanks in advance!
After double check the configuration, there was an overlapping of the PIN number. The same PIN 21 was used for interrupt and servo: