OSPi has a switching regulator that generates 5V DC from 24V AC input power. By “single power supply” it means the same 24V AC power is used to drive solenoid valves as well as powering RPi.
Thanks for confirming this.
What sort of amperage is needed to power both (RPi + valve) using a single 24 VAC power supply ?
Which one would be better ? (I have a RPi 3 B)