GPRS and GSM Modules

Key Features:

• Dual Connectivity:
  Integrated ESP32 with Wi-Fi + Bluetooth and SIM800L for GSM/GPRS communication
• GSM Functions:
  Supports SMS sending/receiving, voice calls, and GPRS data transmission
• Powerful ESP32 MCU:
  Dual-core processor with high performance and low power consumption
• Compact & Integrated Design:
  All-in-one board reduces external wiring and simplifies prototyping
• Micro SIM Support:
  Dedicated SIM card slot for easy GSM network connectivity
• Battery Support:
  Built-in Li-ion/Li-Po battery charging circuit for portable applications
• Wide Application Range:
  Ideal for IoT projects, GPS tracking, smart agriculture, home automation, remote monitoring, and industrial control systems

Technical Specifications:

• Microcontroller: ESP32 (Dual-core, 240MHz)
• GSM Module: SIM800L Quad-band
• Communication: Wi-Fi (802.11 b/g/n), Bluetooth 4.2 + GSM/GPRS
• Operating Voltage: 5V (via USB)
• SIM Card: Micro SIM
• Antenna: Onboard + External support
• Interfaces: UART, GPIO, SPI, I2C, ADC, DAC
• Battery Support: 3.7V Li-ion/Li-Po

Applications:

• IoT-based remote monitoring systems
• GPS vehicle tracking systems
• Smart energy meters
• SMS alert systems
• Industrial automation
• Wireless data logging

Package Includes:

• 1 x SIM800L ESP32 TTGO T-Call Wireless Module

Why Choose This Module?

The TTGO T-Call module offers a complete wireless solution by combining internet and cellular communication in a single compact board. It eliminates the need for multiple modules, reduces project complexity, and accelerates development time—making it perfect for both beginners and advanced developers.