📡 Original SIM800L GSM/GPRS Module 📡
The SIM800L mini GSM/GPRS module is one of the smallest and most popular wireless communication boards, supporting MicroSIM cards with quad-band GSM/GPRS connectivity. It enables IoT projects, SMS messaging, and voice calls via an easy-to-use TTL serial interface, making it perfect for Arduino, ESP32, and STM32 projects.
✅ Technical Specifications:
- Model: SIM800L (Original).
- Supported Networks: Quad-band GSM/GPRS (850/900/1800/1900 MHz).
- SIM Type: MicroSIM.
- Protocols: GSM, GPRS, SMS, MMS, Voice.
- Operating Voltage: 3.7V – 4.2V (recommended: 3.7V Li-ion battery or regulator).
- Interface: TTL Serial (UART) – RX/TX.
- Power Consumption: Ultra-low (≈ 1mA standby).
- Antenna: External antenna connector (IPX or wire).
- Dimensions: ~25 × 23 × 3 mm.
- Approximate Weight: 8 g.
🔹 Key Features:
✔ Smallest GSM/GPRS module with reliable performance.
✔ Supports voice calls, SMS, and GPRS data.
✔ Compatible with Arduino, ESP8266/ESP32, STM32.
✔ Ideal for IoT and wireless monitoring applications.
✔ Low power consumption, suitable for battery operation.
📌 Common Applications:
- IoT systems for monitoring and control.
- SMS-based alerts and automation.
- Voice call-enabled embedded devices.
- GPS tracking (with external GPS modules).
- DIY smart alarm and remote communication projects.
