Pump timer
Pump timer based on Arduino board, with LCD display and 4 relays
(one for the SSR, one for a buzzer, 2 to play with).
The pressostat switches 12V, the arduino checks the time,
and swithes a 3 phase solid state relay (inside).
The LCD displays daily and weekly total runtime,
pump running/ timeout/ time since last weekly reset.
Two buttons allow increase / decrease of daylimit.
An external override switch allows unlimited use (in case of fire).
We share wiring
and the program with you.
Contact me for the latest update.
When we dug outside we found the waterline was partly torn (due to settling soil).
The pump used to run about 10 minutes to get the system to pressure.
After replacing the line, its about one minute, and a lot dryer inside.