Does anyone know of an inexpensive plan in the US to use with a setup similar to this that sends dozens of text messages/month?
Ultramobile PayGo - $3 per month on a month to month basis, 100 mins talk, 100 texts, 100 mb data.
Simple Raspberry Pi Powered SMS Gateway
61–70 of 85 posts
Re: Simple Raspberry Pi Powered SMS Gateway
#62Gammu seems like an ideal candidate for a Home Assistant integration or add-on. Could use incoming SMS as triggers and outgoing as notification methods.
Re: Simple Raspberry Pi Powered SMS Gateway
#63I wonder if I can integrate this with a matrix server so I can send/receive SMS from a carrier-issued SIM via a Matrix client like Element.
Re: Simple Raspberry Pi Powered SMS Gateway
#64Earlier quoted context omitted.
A good free way to achieve this is to use Signal. This project https://github.com/AsamK/signal-cli enables you to send Signal messages from the command line, including from Raspberry Pis. It obviously needs an internet connection to work, but has the added bonus of being more secure than SMS.
Neat tech, but probably not super appropriate for this person's particular application, which involved detecting network outages.
I'm guessing if that USB Modem can send SMS, it can almost certainly also get a TCP connection. (It is probably easier to find a sensibly priced SIM/plan that lets you sand a handful of SMS messages a year compared to one with a ultra low data usage internet connection though.)
Re: Simple Raspberry Pi Powered SMS Gateway
#65I made something similar a few years back with a Pi 1 and a GSM "hat". It came with a C SDK so I had to write AT commands to communicate directly with the modem and it worked great until I didn't need it anymore. Its purpose was to text me when my power or internet connection went down at home then I could respond with commands such as to shutdown the servers etc. When power/network came back it would text me the new…
The plans obviously exist at least at the wholesale level.
These: https://shop.blues.io/collections/development-kits/products/...
Come with pre paid 10 year internet data plans - but with a 500MB data limit (which you can top up), all for $79 including the hardware and interface board.
In raw bytes, that'd be enough to send 1000 140character SMS messages a day every day for 10 years. Realistically, there's probably a 10x or 100x overhead for the TCP/SSL/transport/application layers, but you'd probably still get al least 10 140byte payloads a day for a decade with one of those.
(Full disclosure, I have no affiliation with Bluers.io, but I did impulse buy one of those when they first appeared on my radar, which is sitting in the huge pile in my Box Of Unstarted Projects And Broken Dreams.)
Re: Simple Raspberry Pi Powered SMS Gateway
#66Earlier quoted context omitted.
It surprises me how many people are willing to let Google know their home address.
You don't need Google Fi for Google to know your home address. An Android phone will do that. Or Chrome. Or really just broadcasting wifi. Really the problem is you have a home address and someone will sell it to Google.
I like what you did there. Google is a given, a person having a home address is the problem, the collection method is a variable solution.
Re: Simple Raspberry Pi Powered SMS Gateway
#67This is great for situations where your Raspberry Pi doesn't have any other internet access. But if you do have and ethernet drop or Wi-Fi you can also use your carrier's email to SMS gateway!
For example "[YOUR-PHONE-NUMBER]@txt.att.net"
https://www.dialmycalls.com/blog/send-text-messages-email-ad...
Re: Simple Raspberry Pi Powered SMS Gateway
#68Whats the max throughput here? Would the carrier be the bottleneck?
Sure, they will throttle or suspend your SIM if you send out an abnormal number of SMSs to prevent spam.
Re: Simple Raspberry Pi Powered SMS Gateway
#69I'd love to get a setup like this with voice calls also supported. I'd like to be able to recieve my calls and texts on any device as I can with email/irc/matrix etc
If you use XMPP checkout https://jmp.chat/ .
Re: Simple Raspberry Pi Powered SMS Gateway
#70Back in the day - 15 years ago - I built web apps for clients that sent SMS by merely sending an email to the email alias for that SMS destination. Is that no longer possible?