On Sat, Jan 9, 2021 at 11:53 AM Michael Barnes <[email protected]> wrote: > > Here's an interesting challenge. Another no-budget project. I have some > remote equipment that I need to occasionally receive an alarm alert from. > The equipment provides a contact closure in an alarm condition. In the past > for this type of thing, I used an old autodialer that simply picked up a > phone line, dialed a number, and played a recorded message. > > In this situation, I do not have access to an old style POTS line. I would > prefer a text message, potentially to multiple recipients. There is a local > network with Internet available. I know there are services like Google > voice that can send text messages over the Internet. I do not have access > to an SMTP server that can send external email. > > I was thinking of something like a Raspberry Pi to detect the contact > closure and make the notification. I'm just not sure of the software > mechanism to do so. > > Any ideas appreciated. > > Michael
A Raspberry Pi, a Google Fi data only sim card and a compatible 4G USB modem could work. If you are already using Fi for your phone service you can get the data only sim card for free. Bill Barry _______________________________________________ PLUG: https://pdxlinux.org PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
