2020 Jun 09, 04:38 PM
(2020 Jun 04, 04:08 PM)astrogerard Wrote: Sorry for the late reply... had some other stuff to do...
- use separate power supplies for the Pi, relays and valves. Since the (right) relay boards have optocouplers there is separation of power and logic. --> for the 5v relays a 1 or 2A usb charger can be used (I do so for many years)
- The master-valve relay can be used to switch on/off the transformer for the valves (reduced power consumption)
Hello Gerard,
Thanks for the info. I completely understand about having other stuff to do life has kept me busy the past week or so.
In the process of ordering the parts today and had a question or two about powering the relay boards.
1. Would I need one power supply for each relay board or can the power be daisy chained between the relay boards.
2. Would a 5v 10amp power supply work better than a 5v 3amp or would that be overkill?
3. Maybe this should have been my first question but just verify that the 8 channel DC 5V Relay Module w/optocoupler will work with 24v hunter or rain bird valves.
Hope you are well and thank you again for your time.