📱 SIM800L GSM/GPRS Module (Quad-Band)
The SIM800L is a small and low-cost GSM module that enables voice calls, SMS, and internet via GPRS. It communicates with any microcontroller over UART using AT commands.
⚙️ Features:
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GSM Bands: 850/900/1800/1900 MHz
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Voltage: 3.7V – 4.2V (use with buck converter or battery)
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Interface: UART (AT commands)
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SIM Slot: Micro SIM
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Built-in Antenna: Yes (PCB or external)
💡 Ideal for:
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Home automation
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IoT & remote control systems
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GSM-based alerts and tracking
