Fantastic! Do you know how the lock gets activated? Simple switch or electronic control? If electronic, some details on the make and model would be helpful.
If it's a simple switch, you just need a 12 volt relay controlled by an Omnipro output. The contacts of the relay would be wired in...
I'm not entirely sure what you are looking for.
a) sense whether or not the doors are open
b') sense whether or not the lock has been activated
c) activate the lock
d) all of the above
Just add a suitable relay in parallel with the door lock. The contacts of the relay then become just like window contacts. Set up the Omnipro accordingly.
So I'm left wondering how the 0 dB measurement was made. Would this happen to be the "bars" indicator on the Elk C1M1? If so, -85 dB should be good enough for at least 1 bar with the antenna directly connected. You might just have a bad Elk C1M1 or maybe you have the Verizon version?
For future reference, -85 dB is a weak signal. 0 dB (if that is an actual measured value) is a very strong signal. You should make sure that the antenna has a solid connection.
The installation instructions are quite clear! It does not have two ground connections. Do not mistake the neutral connection for a ground connection. They are different. The ground wire does not normally carry current; the neutral does.
If you are talking about a software bit-banging I2C approach, then you can certainly change the clock rate on the fly to achieve three different communication rates. However, it would be far more practical to use the one hardware I2C port on the MKR1000 for all three I2C Mini-Modules. I'm...
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