In this tutorial, you will be able to use the SIM800L GSM module for controlling anything through SMS. To do that, we just need to parse the incoming SMS from SIM800L through serial communication.
For more information visit my blog post:
https://techtotinker.com/2020/08/03/tutorial-how-to-use-sim800l-gsm-module-for-controlling-anything-arduino/
OR you might interested in using ESP32 and a MicroPython instead:
https://youtu.be/uKGD9oKQJSs
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