[cvonk]

Update: correcting the hot/neutral did the trick. OS is staying up and running, no longer hindered by the GFCI.

/c

[cvonk]

For those interested, I wrote a simple JSON-based demo for an Arduino and using jsfiddle.net.
http://www.coertvonk.com/technology/arduino/arduino-webserver-using-jquerymobile-and-jsfiddle-11803

thx for pointing me in the right direction, Samer,
/c

[cvonk]

I found that the hot/neutral were reversed at the panel. The GFCI from the Orbit box  should have locked-out on this condition.  Oh well, I should have started with the 3 light tester anyway.  Condition corrected.  Will post the results in a few days.

thx all
/c

[cvonk]

Thx.  The leak would be on the secondary winding.  This has been a while for me, but I don’t think something on the secondary can trip a GFCI.  The only other pointers that I can find hint at transient voltage, or ground connected to neutral.  I will check the latter when it is light outside tomorrow.

[cvonk]

Sweet.  He and I will be learning about jquery mobile.

[cvonk]

Thanks you Samer.  Those are a great pointers.

[cvonk]

Up and running.  Smooth sailing from here.

/c

FYI button B1 and B2 might be reversed.  The middle button gives the IP address .  Holding the middle button during power up does the factory reset.

[cvonk]

Power from USB went OK.  Connecting the 24 Vac, gives me rails at 3.29 and 5.10 V, and a soft click of the relay.

Besides your help, I can only contribute this to re-flowing the joints while wearing an old binocular magnifying visor.  Ready to move ahead.

Thanks.

/c

[cvonk]

Ray, I see what you say about the relay based on the .jpg.  I cleaned up the flux, reflowed the relay connection, but still got a <1 kOhm between Vin-Gnd.  Got inspired and reflowed all the other connections.  Now the res is 4.56 kOhm between Vin-Gnd, and 2.07 MOhm for Vcc-Gnd.  I replaced the fuse.  Great to have that spare 😉  Would you suggest reinserting the same MOV and try again?

 

thx,

/c

[cvonk]

Thanks for your prompt replies.  I posted some picts at  *)

http://www.coertvonk.com/technology/embedded/opensprinkler-picts-10950

depending on the browser, you should be able to “save target as” to get the full resolution.

It is dark here, so pictures are with two flashes.

 

Aside, is there a png file for the board layout?  Would be helpful to have the silkscreen to verify component placement.

Thanks a zillion,

/c

*) The forum didn’t let me post with the full res picts attached.

 

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