SMS to BRX PLC

[EliWaldner]

We are try to find a way to get the contents of an SMS sent from a cell phone into the BRX plc to be able to control things according to the contents of the message. Say, "password,plcname,command"? I was thinking there would be a way to convert an SMS, publish it to a MQQT broker and then subscribe to the MQQT broker to get the data. Is this something that someone has tried to do or better yet been able to do? Or this could be a "feature request"? Be able to send and receive SMS from a POM module?

[BobO]

Sending is easy now. There are a number of web-based portals for sending. Receiving is a much bigger issue.

SMS is generally a cell phone thing, so the PLC would have to become a cell phone. I'm sure there is a market for that, but I'm equally sure the development cost and effort would be outside what we are currently able to commit to the effort.

There are some non-phone SMS facilities out there. That might be a starting point. It may be possible to pull content from one of them via HTTPCMD, but that would be polled. MQTT is a better option if there were some form of SMS to MQTT gateway. Don't know if that exists though.

[EliWaldner]

You are right, sending is easy! Most cell service provider offer a "Email-to-SMS" service. We are using it to send messages from the BRX to cell phones. Anybody know of a SMS-to-MQQT gateway?

[Ssweber]

Some searching revealed: https://www.twilio.com/docs/sms/tutorials/how-to-receive-sms-linkit-one-programmable-wireless-aws-iot-lambda

This tutorial is aimed at an arduino board (linkit one), but the concept holds.

[EliWaldner]

Some searching revealed: https://www.twilio.com/docs/sms/tutorials/how-to-receive-sms-linkit-one-programmable-wireless-aws-iot-lambda

This tutorial is aimed at an arduino board (linkit one), but the concept holds.

Did a little research on the above item. It seems to be the right concept, but i question if it would be reliable enough for an industrial application?
A question for this forum users...... Would there be much of a demand for a POM module that would be able to send SMS and also receive them and bring the contents into the program to control stuff via SMS? For example, send a SMS like..... "<password>,Ack Alarm" and have an internal bit set to reset an alarm contact?