The RNSbot SIM800C GSM GPRS Module is a compact, versatile, and high-performance development board designed for wireless communication and IoT projects. This module supports GSM and GPRS networking, enabling reliable SMS, voice, and data transmission over mobile networks. With TTL-level communication, Bluetooth support, and integrated TTS (Text-to-Speech) functionality, the SIM800C module is ideal for STM32, C51, and other microcontroller platforms, providing a seamless interface for developers and hobbyists.

Engineered for ease of integration, this 5V/3.3V compatible module comes with an IPEX antenna connector, ensuring stable network connectivity and long-range signal performance. Its lightweight and compact design make it suitable for embedded systems, remote monitoring, IoT devices, and communication projects requiring GSM/GPRS capabilities.

Key Features

• GSM & GPRS Support: Enables SMS, voice calls, and mobile data transmission for a wide range of applications.

• TTL Serial Communication: Supports 5V/3.3V logic levels, compatible with STM32, C51, Arduino, and other microcontrollers.

• Bluetooth Integration: Built-in Bluetooth functionality allows wireless data transmission and device pairing.

• Text-to-Speech (TTS): Integrated TTS feature for voice prompts, alerts, or notifications in your embedded projects.

• IPEX Antenna Connector: Provides reliable connectivity with a detachable external antenna for enhanced signal reception.

• Compact & Lightweight: Easy to integrate into embedded systems, IoT devices, and robotics projects.

• Versatile Development Platform: Ideal for communication modules, remote monitoring, smart home applications, and automation projects.

• Power Efficient: Operates on low power, making it suitable for battery-powered or portable devices.

Applications

The RNSbot SIM800C GSM GPRS Module is a versatile solution for multiple environments and use cases:

• IoT & Embedded Systems: Connect microcontrollers to mobile networks for remote control, monitoring, and data collection.

• Smart Home Automation: Integrate GSM communication for home security systems, alarms, and notification alerts.

• Remote Monitoring Systems: Send real-time SMS or GPRS data from environmental sensors, weather stations, or industrial equipment.

• Communication Devices: Build voice-enabled systems with TTS functionality for alerts and voice messages.

• Robotics & Hobby Projects: Control and monitor robots or embedded devices over GSM networks.

• Data Transmission & Networking: Enable low-bandwidth data transfer for IoT and telemetry applications.

Technical Specifications

• Model: SIM800C GSM GPRS Module

• Brand: RNSbot

• Interface: TTL-level serial communication (5V/3.3V)

• Frequency Bands: Quad-band GSM 850/900/1800/1900 MHz

• GPRS Data Rates: Up to 85.6 kbps download and 42.8 kbps upload

• SMS Support: Text and PDU mode

• Voice Functionality: Supports voice calls and TTS

• Bluetooth: Integrated Bluetooth module

• Antenna Connector: IPEX external antenna port

• Power Supply: 5V DC / 3.3V compatible

• Operating Temperature: -40°C to +85°C

• Dimensions: Compact, lightweight PCB module for easy integration

• Compatible Platforms: STM32, C51, Arduino, and other microcontrollers with UART interface

• Mounting: PCB-mountable or embedded into custom enclosures

The RNSbot SIM800C module is engineered for developers, engineers, and IoT enthusiasts seeking a reliable, multifunctional GSM/GPRS solution. Its dual voltage TTL communication ensures seamless integration with a wide range of microcontrollers, while Bluetooth and TTS capabilities enhance its versatility for advanced applications.

Unlike standard GSM modules, the RNSbot SIM800C provides a compact, power-efficient, and highly compatible platform, eliminating the need for additional breakout boards or converters. Its IPEX antenna connector guarantees consistent network performance, even in challenging environments.

Whether you are building remote monitoring systems, smart home devices, IoT-enabled gadgets, or robotics projects, this GSM GPRS module provides all the features you need for reliable wireless communication and control.