akg4y Posted December 21, 2008 Share Posted December 21, 2008 I am looking into using the cardaccess doorbell sensors and thermistor and was wondering if anyone knows if two doorbells and one thermistor can be connected to a single wireless contact switch? Basically I want to do what is on page 5 here:http://www.cardaccess-inc.com/inhomeproducts/files/CA_IGA_1_3_Install_Guide.pdfHowever, instead of connecting to two garage contacts I would connect to two doorbell contacts. ie, doorbell one on pins 1&2, doorbell 2 on pins 3&2, and thermister on pins 4&2. Would that work?An unrelated question, on page 6 of that same PDF, what are the dotted relay connections seen above the wireless contact switch? I thought the whole point was that this didnt need to be connected via wires to the HC-300 etc? Link to comment Share on other sites More sharing options...
henniae Posted December 21, 2008 Share Posted December 21, 2008 You can hookup the two doorbell buttons instead of the rail mounted contact switches. One thing to note is that if your doorbell buttons have lights in them this will not work. There is a part from Elk that will allow the the light to work. Card access sells a doorbell kit, take a look at the card access website.The dotted lines you are referring to are the relays inside the wireless relay. Link to comment Share on other sites More sharing options...
akg4y Posted December 21, 2008 Author Share Posted December 21, 2008 I am planning on getting the doorbell kit but they dont mention on any of the doorbell instructions if a thermistor can be connected the same way that it is connected in the garage door diagram.Thanks! Link to comment Share on other sites More sharing options...
thecodeman Posted December 21, 2008 Share Posted December 21, 2008 maybe a dumb question, but whats the thermistor for? Link to comment Share on other sites More sharing options...
RyanE Posted December 21, 2008 Share Posted December 21, 2008 I think the CardAccess pieces have a built-in temperature sensor, I don't think you can hook an external one up.I don't think the contact inputs on the CardAccess device can be used for analog inputs such as a thermistor. They're meant for door or window contacts, which are a binary input, not analog.RyanE Link to comment Share on other sites More sharing options...
henniae Posted December 22, 2008 Share Posted December 22, 2008 Based on the data sheet from CA both the contact relay and the contact switch have internal thermistor. Only the contact switch has an optional external thermistor.http://www.cardaccess-inc.com/inhomeproducts/files/CA_InHome_Wireless_Contact_Switch_Data_Sheet_HiRes.pdfhttp://www.cardaccess-inc.com/inhomeproducts/files/CA_InHome_Wireless_Contact_Relay_Data_Sheet.pdfSince you will be using the contact switch for your doorbell you will be able to hookup the thermistor. Link to comment Share on other sites More sharing options...
akg4y Posted December 22, 2008 Author Share Posted December 22, 2008 maybe a dumb question, but whats the thermistor for?The thermistor is so that I can measure outdoor temperatures and have the thermostat change accordingly in theory. Just another data point to play around with. Link to comment Share on other sites More sharing options...
shaneoneill Posted December 22, 2008 Share Posted December 22, 2008 maybe a dumb question, but whats the thermistor for?i have a cardaccess unit that is installed just under the house and it does register the outdoor temperature among other things. you can like they said use the temperature reading to make adjustments in the home etc. i never saw the point in having my c4 mts units tell me indoor temperature since i have numerous stats that do that already, so i have the outdoor temperature read out on the mts units now... Link to comment Share on other sites More sharing options...
akg4y Posted December 22, 2008 Author Share Posted December 22, 2008 Shane, what sort of programming do you have set up for the thermistor? What exactly do you have it set to do? Link to comment Share on other sites More sharing options...
thecodeman Posted December 22, 2008 Share Posted December 22, 2008 Ah we were talking about doorbells and was trying to figure out how thermistors were needed. Link to comment Share on other sites More sharing options...
akg4y Posted December 22, 2008 Author Share Posted December 22, 2008 Haha.. yeah I can see how that would be mind boggling. The thermistor just ties into the same control board as the doorbell which is why they are related... Link to comment Share on other sites More sharing options...
shaneoneill Posted December 22, 2008 Share Posted December 22, 2008 Shane, what sort of programming do you have set up for the thermistor? What exactly do you have it set to do?aki attached a ss. i just got the inhome wireless card about a year ago so i havent fiddled with it as much as i'd like yet. however, i do register the outdoor temp on my mts units as i mentioned and shown. once the outdoor temp rises above 90 and/or 100 degrees, it does email me, so if im not in the area and sweating myself, i can make changes via the mycontrol4 website. im considering making adjustments to the tstat settings based on the outdoor temp, which seems logical, i just havent done it yet. i do find the inhome card to be a very versatile and useful product all around.by the way, the doorbell thing is cool too because i set announcements for it as well as light flickers based on doorbell presses, as well as email to me so i do know if someone came by. i have a man room which you cannot hear the doorbell from. Link to comment Share on other sites More sharing options...
akg4y Posted December 22, 2008 Author Share Posted December 22, 2008 Interesting, thanks. Hm I wonder if I can have my front door camera take a picture and have the system email me a photo of who came to the house.... Link to comment Share on other sites More sharing options...
PeterM1 Posted December 23, 2008 Share Posted December 23, 2008 Interesting, thanks. Hm I wonder if I can have my front door camera take a picture and have the system email me a photo of who came to the house....Yes you can, and you don't need C4 or any other control system for that. Most (all?) IP-enabled cameras with motion sensors can do this today. I use various Panasonic models around the house, the one that handles my front door is one of the wireless ones, it emails me pics of the area in front of my door once it detects motion. It can also record all activity in a SD card or save on a NAS etc. Link to comment Share on other sites More sharing options...
flyingkev Posted August 24, 2009 Share Posted August 24, 2009 but how do you do it threw the control4 system? I want my Panasonic cams to Email me a picture when my smoke alarm goes off so I can see how badly my house is burning. Link to comment Share on other sites More sharing options...
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