TTGO T-Call V1.4 ESP32 SIM800L GSM Module
Transform your projects with the TTGO T-Call V1.4, a powerful ESP32-based GSM module that combines robust connectivity and versatile functionality. Ideal for IoT applications, this module integrates a SIM800L GSM/GPRS module with the ESP32 microcontroller, enabling seamless communication and data transfer.
SIM800L is a miniature cellular module which allows for GPRS transmission, sending and receiving SMS and making and receiving voice calls. Low cost and small footprint and quad band frequency support make this module perfect solution for any project that require long range connectivity. After connecting power module boots up, searches for cellular network and login automatically. On board LED displays connection state (no network coverage – fast blinking, logged in – slow blinking).
Be prepared to handle huge power consumption with peek up to 2A. Maximum voltage on UART in this module is 2.8V. Higher voltage will kill the module