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Well … Never mind.
I cannot explain what I was seeing with my multi-meter, but it just seemed too outrageous. So I put an array of LEDs together so I can easily see which stations are on and which are off and, from the LED viewpoint, everything is working just fine.
I remain puzzled, but moving forward again!
Dave
Hmm. I thought the apps had been setup to use aliasing through dyn.com. Is that not the case? Did you try using a browser to access the site – did that work ok for you?
Hmm. That seemed like it might be a possibility – the new OSPi doesn’t use the cables – the RPi plugs directly into the OSPi – so I thought maybe the cables were causing the original problem. But I checked my cables and they appear to be ok…so I’m still a bit up in the air. I may retry using the OSPi 1.2 board and the cables. I’ll post if I get any new insights.
Got the ospi 1.4 today – have the ospi up and running. But I still wasn’t getting my valves to turn on – still no 24 volt output on those connections. The Pi-driven web page indicated that they were on…
So. I had swapped out the Raspberry Pi itself a bit ago because it seemed to just go away occasionally – I’d have to reboot it to get it running again. Not real good for a utility sort of a thing.
But that means I still have the older Raspberry Pi. So plugged the older Raspberry Pi into the ospi board and now I’ve got water.
But I have even less idea of what to look at on the Raspberry Pi than I did on the OSPi.
Oh well.
Everything was powered from the 24v, and the power to the RPi is good. It’s possible that a trace is cut somewhere, though the board had been working and I haven’t moved or remounted it.
I turned on station 1 (on the RPi) and checked the voltage on corresponding pin of the 74HC595N, thinking that I might find 5v there. But there wasn’t any voltage there. Not sure where else to look as I’m really not equipped to do detailed debugging of the board, so I guess my only real option is to buy a new one.
