bebster Posted December 24, 2009 Share Posted December 24, 2009 What about switching the line side of the transformer?You could run the 120 volt side of it through a C4 switch, and that way you can "power down" the door bell under program control easily. Link to comment Share on other sites More sharing options...
CFUG Posted December 24, 2009 Share Posted December 24, 2009 The unit triggers at >0.9A. At 16VAC figure 17 ohms. The calc. doesn't make much diff. on AC so figure on this. At 1A that's 14W. You would need a resistor with a power rating of 15W. You need to be looking for a wire-wound piece. Link to comment Share on other sites More sharing options...
wingzz Posted December 24, 2009 Share Posted December 24, 2009 Yeah I get 18 watts, you might have to go with either a wire wound resister or you can buy a cheap doorbell and remove the bell and just use the ringerless bell as the load, that might be easiest Link to comment Share on other sites More sharing options...
ILoveC4 Posted December 24, 2009 Author Share Posted December 24, 2009 Okay, so I have the relay from Radio Shack. I also have some 10 ohm 0.5 Watt resistors. Any chance I can use these? A friend suggested I try and see if it gets hot. I trust this guy, but I'm after all the advice I can get. These are the resistors I was hoping to use: http://www.radioshack.com/product/index.jsp?productId=2062309&filterName=Type&filterValue=1%26amp%3Bamp%3B%23047%3B2-watt+resistors Link to comment Share on other sites More sharing options...
ILoveC4 Posted December 24, 2009 Author Share Posted December 24, 2009 Also, please take mercy if that was a stupid question. I don't understand watts, etc...The reason I'm not using a switch is I don't want the expense of a switch. These resistors are about $2, versus $130 for a switch. Link to comment Share on other sites More sharing options...
bhadams Posted December 24, 2009 Share Posted December 24, 2009 I would follow the suggestion of using a 15 watt resistor. A 1/2 watt resistor won't get hot, it will burn up. Link to comment Share on other sites More sharing options...
ILoveC4 Posted December 24, 2009 Author Share Posted December 24, 2009 Okay, so the 10 watt resistor won't work either...dang it. Larger resistors are difficult to find locally... Link to comment Share on other sites More sharing options...
CFUG Posted December 24, 2009 Share Posted December 24, 2009 Dan, I can get you one in a pinch- they are scattered all over my desk at the moment. I'm not found of ice-cube relays but they do work. I 5S'd a bunch of DIN-rail, solid-state relays the other day that would have worked fine but... Link to comment Share on other sites More sharing options...
CFUG Posted December 24, 2009 Share Posted December 24, 2009 Yeah I get 18 watts, you might have to go with either a wire wound resister or you can buy a cheap doorbell and remove the bell and just use the ringerless bell as the load, that might be easiestYep, if you have a Homes Depot near you Dan you could do this tonight. Just tell the family Christmas is delayed until further notice Remember, it's all part of the Control4 experience. Link to comment Share on other sites More sharing options...
ILoveC4 Posted December 24, 2009 Author Share Posted December 24, 2009 I can get one Monday at the electrical supply here locally. When I'm there I replace this relay with one that has screw down terminals. Thanks for the help thus far guys... Link to comment Share on other sites More sharing options...
WholeHomeControl Posted December 25, 2009 Share Posted December 25, 2009 I may be missing some of what you want to accomplish, but you can trap the door bell press event and then perform either a C4 program action and/or have your door bell chime with just the components in your original diagram minus the Elk door bell sensor. The key is that you use the C4 controller to handle the door bell press event, and then everything else occurs downstream from the controller.The below diagram attempts to express how to do this. Note that it requires using both a C4 relay and C4 contact switch within one of your C4 controllers (or, external devices if you desire.)In Composer, you programmer on the contact sensor close event:When the Contact Switch Closes--> If doorbell_enabled is TRUE then toggle the doorbell relay--> If doorbell_custom_action is then ... Link to comment Share on other sites More sharing options...
henniae Posted December 25, 2009 Share Posted December 25, 2009 I may be missing some of what you want to accomplish, but you can trap the door bell press event and then perform either a C4 program action and/or have your door bell chime with just the components in your original diagram minus the Elk door bell sensor. The key is that you use the C4 controller to handle the door bell press event, and then everything else occurs downstream from the controller.The below diagram attempts to express how to do this. Note that it requires using both a C4 relay and C4 contact switch within one of your C4 controllers (or, external devices if you desire.)In Composer, you programmer on the contact sensor close event:When the Contact Switch Closes--> If doorbell_enabled is TRUE then toggle the doorbell relay--> If doorbell_custom_action is then ...There are several ways this can be accomplished. WholeHomeControl, the way you describe it has one minor flaw. The lighted doorbell button will cause the C4 contact switch to think that the button is pressed. This is because This is why the Elk doorbell sensor is used. Link to comment Share on other sites More sharing options...
WholeHomeControl Posted December 25, 2009 Share Posted December 25, 2009 Correct, the above doesn't support a lighted doorbell. Version using the Elk for a lighted doorbell below (simply inserts the transformer and Elk sensor in the doorbell pushbutton loop.)Caveat: a resistor should possibly be placed in doorbell pushbutton loop to prevent excess current from surging through the transformer. Link to comment Share on other sites More sharing options...
ILoveC4 Posted December 26, 2009 Author Share Posted December 26, 2009 Thanks guys. I want the doorbell to work without Control4, so I am going to use the diagram bhadams made. Thanks! Link to comment Share on other sites More sharing options...
ILoveC4 Posted January 2, 2010 Author Share Posted January 2, 2010 Well guys, I finally had a chance to dive into it this morning and I got it working. I used the diagram and suggestions from bhadams and it works perfectly. Basically when the house is in a certain "mode" the physical doorbell doesn't ring and instead an announcement plays. I also have other programming take place regardless of the mode the house is in such as pausing the audio or video source, etc...If anyone has any questions about how to do this or what parts are required please let me know. Link to comment Share on other sites More sharing options...
rydbeckc Posted May 25, 2012 Share Posted May 25, 2012 I just got my Elk930 wired in to my system this morning. Is Composer Pro required to add the doorbell to my project? I am using a contact on my I/O extender which is already installed on the system. Please advise. Link to comment Share on other sites More sharing options...
thecodeman Posted May 25, 2012 Share Posted May 25, 2012 I just got my Elk930 wired in to my system this morning. Is Composer Pro required to add the doorbell to my project? I am using a contact on my I/O extender which is already installed on the system. Please advise.Yes. Link to comment Share on other sites More sharing options...
ILoveC4 Posted May 25, 2012 Author Share Posted May 25, 2012 Thecodeman is right. There is still a driver to be added and bindings that need to be made. The good news is...it's simple to do. Should only take a second for your dealer to do it remotely. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.