Module LILYGO TTGO T-Call V1.4
MCU: ESP32 240MHz
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Buy the universal module LILYGO TTGO T-Call V1.4 for projects with cellular communications and the Internet of things
The LILYGO TTGO T-Call V1.4 module combines a powerful ESP32 microcontroller and a SIM800L 2G modem in one compact board. This is a ready-made solution for creating remote monitoring, telemetry and control systems that require communication outside the Wi-Fi range. With built-in wireless interfaces and battery-powered support, the module is ideal for field environments and mobile applications.
5 main advantages
- Cellular connection 2G.Ā Built-in SIM800L modem with GSM/GPRS support for data and SMS transmission anywhere in the coverage areaĀ .
- Powerful ESP32.Ā 240 MHz dual-core Xtensa LX6 processor with 8 MB Flash and 8 MB PSRAM for advanced computingĀ .
- Dual wireless connectivity.Ā Wi-Fi 802.11 b/g/n and Bluetooth 4.2 BR/EDR + BLE for flexible integrationĀ .
- Autonomous power supply.Ā Built-in charge controller IP5306 for Li-Po battery with JST PH 2.0 connectorĀ .
- Rich interfaces.Ā I2C, SPI, UART, CAN, SDIO, I2S, as well as microphone and speaker connectorsĀ .
How the module works
The ESP32 microcontroller controls the device logic and processes data from connected sensors. The SIM800L modem provides data transmission over a 2G cellular network, allowing you to send SMS, make calls and exchange data via GPRSĀ . Built-in slot for Nano SIM card allows you to quickly change operatorĀ . The board supports dual power: via USB Type-C or from a Li-Po battery, making it ideal for off-grid projects.
Features of the model range
T-Call V1.4 is available in several versions: with SIM800L (2G) or SIM800H module. The board comes preloaded with firmware for quick start and is fully compatible with Arduino IDE, PlatformIO and ESP-IDFĀ . The kit includes a SIM antenna, battery cable and a set of solder pinsĀ . The module supports over-the-air (OTA) firmware updates.
- MCU: ESP32 240MHz
- GSM/GPRS: SIM800
- SIM: Nano 2G slot
- Flash: 8MB
- PSRAM: 8MB
- Wi-Fi: 802.11 b/g/n
- Bluetooth: v4.2 BR/EDR and BLE
- Button: EN
- Charging controller: IP5306
- USB-UART converter: CH9102
- Supported interfaces: I2C, SPI, UART, SDIO, I2S, CAN
- Power: USB Type-C / Li-Po battery JST PH 2pin 2.0 mm
- Provides connection for external microphone and speaker
