SIM MODULES

SIM modules enable cellular communication in electronic devices by connecting them to mobile networks using GSM, GPRS, 3G, 4G, or LTE standards. These modules are widely used in IoT (Internet of Things) and M2M (Machine-to-Machine) communication for remote data transmission, vehicle tracking, SMS/voice control, and mobile internet access.

This category features high-performance modules from top manufacturers like SIMCom, Quectel, Waveshare, and Ai-Thinker, supporting dual-band and quad-band frequencies, SMS, voice calls, GPRS/EDGE data, TCP/IP stack, and even HTTP/HTTPS/MQTT protocols. Models like SIM800L, SIM900A, A7670C, and EC25 are ideal for Arduino, ESP32, Raspberry Pi, and industrial applications.

These modules often include features like auto baud rate detection, low-power sleep modes, antenna interfaces, UART/SPI/I2C connectivity, and support for eSIM in newer variants. They are commonly used in GPS trackers, smart meters, environmental sensors, SMS-based alert systems, and remote automation.