Hi @lukef here are 2 forum threads that might help.
- Extra cables for extra peripherals - Hardware - FarmBot Forum
- I Reworked My FB Express Power - Hardware - FarmBot Forum
The switched 24VDC “Peripheral” sockets on a Farmduino v1.5 probably have a total current budget ( sum of the 5 outputs ) of around 3A so you’d need to be aware of concurrent active peripheral loading in your controlling sequence(s).