TTGO T-Call V1.4 ESP32 Wireless Module SIM Antenna SIM Card SIM800L Module

The TTGO T-Call V1.4 ESP32 Wireless Module is a powerful and versatile device that combines the capabilities of an ESP32 microcontroller with a built-in GSM/GPRS modem, allowing for seamless cellular communication. It features a SIM card slot, antenna connector, and various GPIO pins for easy integration with other components.

Key Features:

• ESP32 Microcontroller: Provides a high-performance and low-power computing platform.
• GSM/GPRS Modem: Enables voice calls, SMS messaging, and data communication over cellular networks.
• SIM Card Slot: Accepts standard SIM cards for cellular connectivity.
• Antenna Connector: Allows for connection to an external antenna for improved signal reception.
• Rich GPIO Pins: Offers a variety of general-purpose input/output pins for customization and interfacing with other devices.
• Power Management: Efficient power management for extended battery life.
• Compact Design: Small and lightweight, making it suitable for portable applications.

Applications:

• IoT Devices: Connecting sensors and actuators to the cloud for remote monitoring and control.
• Wearable Technology: Enabling wireless communication and data transfer in wearable devices.
• Remote Sensing: Collecting data from remote locations and transmitting it over cellular networks.
• M2M Communication: Facilitating communication between machines and systems.
• Security Systems: Providing remote monitoring and control for security systems.

DATA SHEET AND USECASE

Key Specifications:

• Microcontroller: ESPRESSIF ESP32
• 240MHz Xtensa® single-/dual-core 32-bit LX6 processor
• 520 KB SRAM
• 4MB QSPI flash memory
• 8MB PSRAM

• Cellular Module: SIM800L
• Supports GSM/GPRS
• Operates on 850/900/1800/1900 MHz frequencies
• Supports Nano SIM cards

Connectivity:

• Wi-Fi: 802.11 b/g/n, up to 150 Mbps
• Bluetooth: v4.2 BR/EDR and BLE
• Interfaces: UART, SPI, SDIO, I2C, PWM, I2S, ADC

Power:

• Operating Voltage: 2.7V–3.6V
• Operating Current: ~70mA
• Sleep Current: ~1.1mA
• Power Supply: USB 5V/1A
• Charging Current: 500mA
• Battery Support: 3.7V lithium battery via 2-pin 1.25mm JST connector

• Physical Dimensions:
• 78.83mm x 28.92mm x 8.06mm
• Weight: 11.77g