1/16/16 - Updated to reflect recent ST IDE nomenclature changes and v2 SmartThings Phone App image. Just a heads up - The current Arduino IDE 1.6.6 has a bug in it which throws a compiler error (invalid namespace) when trying to build ST_Anything. Please continue to use v1.6.5 until 1.6.7 is releas…

Luke, We need some more information… Most likely, you will need to tie the GND on the Arduino to the GND on the existing security panel. This will then allow both systems to have a common reference voltage. Again, please be sure the voltages are both 5V DC TTL level before connecting the two sys…

The 5v and 2.5v are when the leads are in contact with either of the two wires from the sensor in the existing security panel. One of the wires goes into a numbered port and the other goes into a “COM” port that is tied to all the other “COM” ports. I haven’t measured the voltage at the Arduino. W…

quick update I connected the Adruino Ground to a ground post on the existing system. Right now its not connected to anything, but it seems to set a reference point. When I measure voltage its the same from wire to security system ground as wire to arduino ground. Here is where its weird now. if …

Dan, I installed the iOS app and everything works perfectly, so it appears this is an android issue. Thanks for your assistance, looks like I am off to troll the android app portion of the forum. Thanks again, Jason

Luke, There is no way to redefine the voltage level for HIGH on the Arduino. Have you tried setting your voltmeter to AC to see whether or not the old alarm panel might actually be using AC voltage instead of DC? Just something to verify. It sound to me like you’re going to have to follow Ken’s …

Wiring diagram you say… [image] It’s definitely DC,not sure what to do now

Ok, use your voltmeter on DC and measure the voltage between COM and one of the ZN terminals with the corresponding door or window sensor open and closed. Based on the wiring diagram, if the system is DC voltage based, you should see either 0 volts or some positive voltage. Then repeat the same te…

Between COM and ZN the VDC reads 2.5v closed and 5.2v open. VAC reads 0 across both. I have it hooked up with the trigger set to High, but the contacts are reading Closed weather they are open or closed. I tried setting the trigger to Low but the same thing happens just reversed. 3V required to tr…

OK, we’re getting somewhere… At least it seems like we are dealing with a 5VDC circuit, so that’s very good news. Can you please determine which of the 4 “Typical Zone Circuits” wiring diagrams your house is wired with? Also, can you please disconnect one of the Zone wire pairs altogether from th…

I believe its the “normally closed contact with EOL resistor” I removed a wire pair. Closed it read ~5600ohm Open I couldn’t get a reading. Alright I’ve posted a few conflicting voltages that I blame on me cross-wiring things really weirdly. This are the current (ha) readings. All reading are …

Announcing the "ST_Anything" Arduino/ThingShield Project

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SkyJedi (Luke Olson) March 1, 2016, 12:52am 300

Wiring diagram you say…

It’s definitely DC,not sure what to do now

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Announcing the "ST_Anything" Arduino/ThingShield Project

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