Hello!
New to the forum.
Lots of useful info here, but...
Looking for a solution for location without internet connection.
Planning to use an old android phone (no data plan) as a notification device.
All I need is: when event is triggered - the phone sends SMS/text message.
Could someone point me in the right direction as to what apps/drivers are needed to accomplish this?
With a old phone to send SMS/Text messages you will need an active SIM card on cellular services. There are other ways to send SMS messages with Hubitat. Hubitat has Twilio integration with a virtual device that will send the SMS message out to any phone number that you register with their services.
I have been doing some experimenting with their services and it works well but there is a subscription cost to do this and this approach would be more reliable as long as your internet is connected:
tasker is all on the android phone and has a decent learning curve. instead of sending a text, why not set up the mobile phone you want to receive the notifications with the hub and send a notification when the alert triggers?
This is a different approach using an Arduino, lots of challenges but in the end it should be able to send notifications as well as receive commands via SMS.