Using Pololu MOSFET in place of relays to control bilge pump, water pump and heads pump.
3/17/20251 min read
Using MOSFET in place of physical relays to extend service life through reduced control currents and zero moving parts. In this case the head and galley taps are fitted with microswitches to control the water pump, no pressure switching is used.
Note the bilge pump control has an output for future use providing an MQTT signal for remote alarm. This alarm voltage is diode protected from manual override to avoid alarm under manual use.
