At this point I am comfortable with you trying the app out, Ray. Let me know if you have any problems installing or configuring it. I was not 100% sure the best way to grab the variables from the OpenSprinkler to ensure compatibility down the road with future updates. If you have any suggestions please let me know. I have firmware 2.0.0 but I suspect based on the HTTP GET API documentation for 1.8.3 that it should work perfectly well on both firmwares.