HI All,
I have a project which uses the SIM800L module to use the mobile network to send SMS and make a call. Since the SIM800L only supports 2g and 2g is being phased out I want to replace it with something else. I communicate from the ESP32 to the SIM800L via AT commands so the replacement would ideally use a similar set of AT commands. There appear to be a lot of 4g modules and some 3g and finding it difficult to compare one vs another.
Does anyone have any recommendations?
Thanks
Lee.
Low cost SIM modules
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Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. ESP8266EX and ESP32 are some of our products.