4G sms module

[Ioannis]

You could spare any MCU and programming with this:

https://www.aliexpress.com/item/1005...Cquery_from%3A

Ioannis

[HenrikOlsson]

Provided the country you're about to deploy it in still has a working GSM network.... These days it's 4G, LTE or 5G.

All the description says is "GSM" so I'll take it that's what they mean - literally. Which is probably also why it's soo cheap.

[Ioannis]

On the specs does not say if it is compatible with 4G, LTE or 5G.

So, yes I bet Henrik, you are right!

Ioannis

[aerostar]

Under the price it says

SIM A7670C R2 A7670E R2 4G LTE cat 1 Module is Compatible With STM32, Raspberry pie, etc

Note 4G LTE

and

If you scroll down the web page he gave it says

Introduction:

●The A7670 series is the LTE Cat 1 module which supportswireless communication modes of LTE-TDD/LTE-FDD/GSM/GPRS/EDGE. It supports maximum 10Mbps downlinkrate and 5Mbps uplink rate.

●The A7670 series supports multiple built-in networkprotocols, which is suitable for main IOTapplications such as telematics, surveillance devices, POS,industrial routers, and remote diagnostics etc.

●It is designed for applications that need high throughput data communication in a variety of radio propagation conditions. Due to the unique combination of performance, security and flexibility, this module is ideally suited for many applications.

[HenrikOlsson]

I was referring to the one Ioannis linked to.