Electronics > Microcontrollers

4G LTE + SMS module for Microcontroller

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Scrts:
I am using SIM7070G module form Waveshare: https://www.waveshare.com/sim7070g-cat-m-nb-iot-gprs-hat.htm
Works well in USA with particle.io free SIM card over Cat-M. I've tried it over USB-UART connection on FreeRTOS AWS IoT Windows simulator demo, currently trying to port it to STM32...

I would pick something from Quectel, U-blox or Telit, but SIMCOM modules are cheaper and widely available from China.

Mirror: https://www.amazon.de/-/en/Waveshare-GPRS-Raspberry-SIM7600E-H-Supports/dp/B0892C4GKW/ref=sr_1_2?crid=2DOIEMICUSSXA&keywords=sim7070+g&qid=1656341473&sprefix=sim7070g%2Caps%2C177&sr=8-2

DeadlyChemist:

--- Quote from: Scrts on June 27, 2022, 02:46:41 pm ---I am using SIM7070G module form Waveshare: https://www.waveshare.com/sim7070g-cat-m-nb-iot-gprs-hat.htm
Works well in USA with particle.io free SIM card over Cat-M. I've tried it over USB-UART connection on FreeRTOS AWS IoT Windows simulator demo, currently trying to port it to STM32...

I would pick something from Quectel, U-blox or Telit, but SIMCOM modules are cheaper and widely available from China.

Mirror: https://www.amazon.de/-/en/Waveshare-GPRS-Raspberry-SIM7600E-H-Supports/dp/B0892C4GKW/ref=sr_1_2?crid=2DOIEMICUSSXA&keywords=sim7070+g&qid=1656341473&sprefix=sim7070g%2Caps%2C177&sr=8-2

--- End quote ---
oh so hooking this up to rpi via usb or esp8266 should be easy
and it works with NORMAL sim cards? think will oder that

or is there something else i need to know?

Scrts:
I did not try with NORMAL SIM cards, since all those IoT ones still use the regular network providers.
Particle provides 1MB of data monthly for free on their Pilot plan. Enough to send a couple of status bytes couple of times per day...

I remember I had problems with setting up demo code, but apparently the Cat-M frequency settings were set incorrectly. Once I fixed that - everything worked fine.
Another note: you still need to either click a button or use a GPIO to wake-up the module. There might be a 0ohm jumper on the module to do this automatically, but I did not spend time on it...

DeadlyChemist:

--- Quote from: Scrts on June 27, 2022, 04:36:02 pm ---I did not try with NORMAL SIM cards, since all those IoT ones still use the regular network providers.
Particle provides 1MB of data monthly for free on their Pilot plan. Enough to send a couple of status bytes couple of times per day...

I remember I had problems with setting up demo code, but apparently the Cat-M frequency settings were set incorrectly. Once I fixed that - everything worked fine.
Another note: you still need to either click a button or use a GPIO to wake-up the module. There might be a 0ohm jumper on the module to do this automatically, but I did not spend time on it...

--- End quote ---

i dont need sleep tbh, the few miliamps don't bother me tbh, i prefer FAST sms notification
yeeah, the only question would be, can you try an NORMAL sim card
this is what im using https://www.netzclub.net/

Scrts:
Check SIM7000E or other variants with your network provider name on google.
I found this: https://schroederdennis.de/allgemein/raspberry-pi-zero-sim7000e-nb-iot-lte-cat-m1emtc-gps/

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