Description
The SIM800L GPRS GSM Module Core Board integrates the miniature SIM800L cellular modem onto a compact PCB, providing a complete quad-band GSM/GPRS solution for IoT developers. It operates on the 850/900/1800/1900MHz frequency bands, ensuring broad global network compatibility for SMS, voice calls, and GPRS data transmission.
Designed for direct integration, the board features a 3.3V TTL serial UART interface, allowing seamless connection to microcontrollers like Arduino, ESP32, or STM32 without requiring external RS-232 level converters. The module includes two antenna options: a solderable wire whip for confined spaces and a high-performance PCB antenna with an IPX connector pigtail for external mounting, crucial for maintaining signal strength when enclosed in metal cases.
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