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Old February 9th, 2018, 02:52 PM
Michael McSharry's Avatar
Michael McSharry Michael McSharry is offline
Join Date: Jul 2001
Location: North Bend, WA, USA
Posts: 13,722
A technology that has not been brought up is LoRa such as a RAK811 tracker that has GPS and 900Mhz so one could monitor position of a car and trigger on some threshold. I do not have any hands-on experience, but is an area I am starting to dabble. The technology is pretty big in the IoT world. Since the LoRa range is measured in 1000,s of feet rather than feet the simple presence of signal such as is done with RFID would likely not work for the coming up driveway use case.
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