[joepalermo]

Update: we resolved it – turns out it was a bad board!

[joepalermo]

I see. Yeah, I was just playing around with different commands.

I tried starting it manually with ‘sudo ./OpenSprinkler’, and unsurprisingly I get the same effect where the valve activates immediately.

Would this suggest something wrong with the hardware? I’m just grasping at straws now unfortunately.

[joepalermo]

To clarify, it doesn’t engage the solenoids when I turn on the power. It engages the solenoids when I run: ‘sudo systemctl start OpenSprinkler’.

Does that help make any more sense of it? Unless, you are implying that running ‘sudo systemctl start OpenSprinkler’ is effectively equivalent to powering on the ospi board?

Thanks

[joepalermo]

Thanks Ray, I really appreciate your help.

Just confirmed I’m using a 24V AC power supply, so that can’t be it.

[joepalermo]

Regarding your question

Are you using relays? If so, be aware that many relays boards use ‘active low’ logic, which means they will activate when the signal is low. OSPi uses ‘active high’ logic, so it will be the exact opposite.

my colleague says:

I think they we’re assuming that we weren’t using their hardware just the operating system. So that question isn’t relevant to our situation. If we were using our own hardware (relays) with their os that might have indicated the problem.

[joepalermo]

Sorry for my delayed reply, I had to get the answer from a colleague.

We purchased a board from you.

Will get back to you shortly about the relays.

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