Today, were involved with SIM800L with M5Stack. This is an ESP32 that is already wrapped and encapsulated with a display. And if you dont know the M5Stack, watch this video: ESP32 M5Stack with DHT22. And todays example already has an SIM800L embedded in it. So with our assembly, it is possible to turn a lamp or fan on and off through an SMS message. And I can send this remotely, as there is no need for any application. This is a simple and reliable example of automation, and it does not require WiFi or LoRa.”

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