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 fro