ESP32 SIM800L: Send Text Messages (SMS Alert) with Sensor Readings
For complete project details (schematics + source code), visit ►
Buy the ESP32 SIM800L board for ~$11 ►
ESP32 Publish Data to Cloud without Wi-Fi (TTGO T-Call ESP32 SIM800L) ►
ESP32 DS18B20 Temperature Sensor with Arduino IDE (Single, Multiple, Web Server) ►
ESP32 Timer Wake Up from Deep Sleep ►
In this project we’re going to create an SMS notification system with the T-Call ESP32 SIM800L module that sends an SMS when sensor readings are above or below a certain threshold.
In this example, we’ll use a DS18B20 temperature sensor, and we’ll send an SMS when the temperature is above 28ºC. Once the temperature has decreased below the threshold, we’ll send another SMS alert.
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