I’ve connected relays to my garage door and gate buzzer, on my SmartThings network. The design of my home is such that getting through the gate allows access to a long, totally secured entrance atrium, before the front door, so allowing UPS, USPS, FedEx, Instacart etc access to this area is extremely valuable to me. The gate is flush with the street, and I live in the Mission in SF, so leaving things at the gate is not an option.
By connecting Twilio to Smarthings, I’ve implemented a system where I can issue virtual SMS keys for friends/tradespeople that expire after a predetermined length of time or number of uses.
I’ve also written code to automatically make one-time keys for delivery persons from the last 6 digits of any tracking number that I get. There is a sign by the door with the ‘House’ sms number, instructing delivery people to use the tracking number for one-time access.
This system has been a huge convenience, and is completely controlled, configured, and logged via SMS, which makes it universally applicable. There is some crude language parsing such that I have developed my own command and config lexicon.
Along with the motion detectors connected to lights, it is by far the most useful manifestation of iOT I’ve implemented to date.
I have the Echo, Nest, Nest Protect, 4 dropcams, 2 smartthings hubs (home and work) , 5 hue lights, and extensively use IFTTT, webhooks, and Twilio.
Oh, the other really useful thing is the Smarthings sensor on the garage door - tells me if I left it open!
I can’t say enough good things about bringing SMS into the equation, all my sms based apps have flourished among family and friends, but not so much with app-driven functionality.