SIM800L GPRS GSM Module Core Board Quad-band TTL Serial Port

Product Description: The SIM800L GPRS GSM Module is one of the smallest cellular communication boards available, making it a cornerstone for the IoT and remote monitoring projects at Robogears Pvt Ltd. This module allows your microcontrollers (like Arduino, ESP32, or STM32) to send and receive SMS, make voice calls, and connect to the internet via GPRS. Its ultra-compact form factor is specifically designed for space-constrained applications such as GPS trackers, remote weather stations, and cellular-controlled robots. The board comes with a spring antenna and features a standard TTL serial interface for easy integration.

Key Highlights

• Quad-Band Connectivity: Works on all global GSM networks, ensuring your Robogears devices remain connected whether they are in Pimpri or exported globally.

  
  

• UART Communication: Controlled via standard AT Commands, making it highly compatible with almost any microcontroller through simple TX/RX pins.

  
  

• Low Power Consumption: Features a dedicated sleep mode, consuming as little as 1mA, which is critical for long-term battery-operated remote sensors.

  
  

• Built-in Status LED: Includes an onboard LED that blinks at different frequencies to indicate "Searching for Network," "Connected," or "GPRS Active."

  
  

• Audio Capabilities: Includes pins for a microphone and speaker, allowing for the development of two-way voice communication systems or automated alert calls.

Technical Specifications

• GPRS Class: 12/10

• Peak Current: Up to 2A (during transmission bursts)

• Average Current: ~50mA during active communication

• Temperature Range: -40°C to +85°C

• Dimensions: 25mm x 23mm (approx.)

• Logic Level: 3.3V to 5V (Note: 5V logic requires a level shifter for RX)