Sim900 Mini V4.0 Wireless Data Transmission Module GSM Gprs Board W/antenna
Description
Communication: GSM/GPRS (2G), Voice Calls, SMS, GPRS Data (TCP/UDP).
Interface: UART (Serial), controlled by standard AT commands.
Compatibility: Works with 5V microcontrollers like Arduino, and can be adapted for 3.3V boards (NodeMCU, ESP32).
Power: Needs stable 5V/2A+ power (often requires voltage regulator).
Form Factor: Compact "Mini" board with SIM card slot and antenna connector.
Applications: IoT devices, remote sensors, GPS trackers, smart home