✅ Product Description

Product Name: SIM800C GSM/GPRS Module with Bluetooth & TTS

Product Description:
The SIM800C GSM/GPRS Module is a compact, reliable, and feature-rich communication module designed for IoT projects, remote monitoring systems, wireless data transfer, SMS control, and voice-enabled applications. It combines quad-band GSM functionality, GPRS data support, Bluetooth 3.0 connectivity, and built-in Text-to-Speech (TTS) capability. Its onboard SIM slot, UART interface, and compatibility with 3.3V/5V logic make it easy to integrate with Arduino, ESP32, Raspberry Pi, STM32, and various other microcontrollers. Perfect for embedded systems and smart automation projects.

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🔧 Key Features & Specifications

• Quad-Band GSM: Supports 850 / 900 / 1800 / 1900 MHz

• GPRS Data Support: Class-12/10 for mobile data applications

• Voice & SMS: Make/receive calls and send/receive SMS messages

• Bluetooth 3.0 + EDR: Wireless data and device connectivity

• Text-to-Speech (TTS): Built-in feature for voice announcements and alerts

• Audio I/O: Supports microphone and speaker for voice functions

• Power Input: Typically 5V; onboard level shifting supports 3.3V or 5V MCUs

• UART Serial Interface: Uses AT commands for easy control

• Onboard SIM Slot: Works with 1.8V and 3.0V SIM cards

• Compact Size: Ideal for embedded or portable electronics

• Protection: Built-in safeguards against over-voltage and thermal issues

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⚙️ Typical Applications

• IoT telemetry & remote monitoring

• SMS-controlled automation systems

• Voice-call alarms and TTS-based alert devices

• Wireless meter reading and industrial control

• Smart home security systems

• GSM-enabled trackers (with external GPS modules)

• Data logging and remote sensor applications

• Bluetooth + GSM hybrid communication projects

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⭐ Why Choose This Module

• Combines GSM, GPRS, SMS, Voice, Bluetooth, and TTS in one compact device

• Easy integration with major microcontrollers

• Ideal for IoT, hobby, industrial, and communication-based projects

• Reliable quad-band global compatibility

• Cost-effective and versatile for a wide range of applications