once again i turn here for advice, thank you in advance
so the idea is to make a shower timer that lets water run after a button push for 6 mins with a buzzer that sound after 5 mins alerting the user to hurry up. after this it will shut off for 10 mins before reactivating and waiting for another button push.
-12v solenoid 1/2" water fitting -relay module 5v trigger -Arduino nano -momentary waterproof switch - 4x 18650 cradle - step down module 14v-9v - 5v buzzer - waterproof project box - waterproof male female connector
Firstly i am going to bypass the solenoid valve in the event of failure or battery dying but nobody else in the house knows what a ball valve is so there is no danger of them thinking that through. All i want to know is am i going the correct way about this as i have seen post on here regarding similar things but its not quite how i want it. I was also thinking about incorporating a charge circuit so it can be unplugged from the solenoid valve and charged overnight. would the code for this be something say a beginner could do if i study it hard for a week or so.