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TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module

TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module

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  • This is TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module
  • Wireless Communication: Enables wireless connectivity for microcontrollers through the integration of ESP32 and SIM800L GSM/GPRS module.
  • This Utilizes ESP32's WiFi and Bluetooth capabilities alongside the SIMCom SIM800L GPRS module.
  • This Features GPIOs for easy pairing with sensors and other application-specific devices.
  • Compact and Powerful: Provides onboard processing and storage capabilities, minimizing development and runtime loading requirements.
  • This is Equipped with a USB-C port for power and programming, offering convenience and compatibility.
  • This is Perfect for building remote IoT data monitoring systems, offering reliable internet connection and compatibility with various IoT projects.

TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module

You are looking at an unsoldered TTGO T-Call ESP32 SIM800L module with SIM antenna and SIM card support. This module serves as a wireless communication module, allowing any microcontroller to connect to your WiFi network using the ESP V1.4 ESP32 Serial WIFI Wireless Transceiver Module. The ESP32 module is a self-contained SOC with an integrated TCP/IP protocol stack.

With its GPIOs, this module can easily be paired with sensors and other application-specific devices, requiring minimal development and runtime loading thanks to its powerful onboard processing and storage capabilities.

The TTGO T-Call combines an ESP32 development board with a SIM800L GSM/GPRS module. This combination enables wireless connectivity using the ESP32's WiFi and Bluetooth capabilities, alongside the SIMCom SIM800L GPRS module. Notably, the board features a USB-C port instead of the more common micro USB port for power and programming.

Let's consider a scenario where you aim to build a remote IoT data monitoring system. One of the initial challenges is establishing a reliable internet connection for your device. Whether you need to receive alerts when someone enters your room or remotely water your plants, the ESP32 with SIM800L GSM/GPRS Module can prove highly valuable. Its compact size and versatility make the SIM800L an ideal choice for various IoT projects.

Why is this Wireless Communication Module best for IoT applications?

The ESP32-based wireless communication module is best for IoT applications because it consists of a USB Type C pluggable board that has an onboard LiPo Battery Charging Circuit & Connector.


  1. The ESP32 chip, which has a dual-core 32-bit LX6 CPU, is coupled with the SIM800L wireless communication module.

  2. The SIM800L ESP32 wireless module has a Type C connector and requires a 5V/1A power source.

  3. The ESP32 SIM800L wireless communication module supports Bluetooth v4.2BR/EDR and BLE standard protocol in addition to 802.11 b/g/n wifi.

  4. The SDK for user firmware development and cloud server development is supported by this wireless communication module.


Pinout of TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module

Package Includes:

  • 1 x TTGO T-Call V1.4 ESP32 Wireless Communication Module


Chipset ESPRESSIF-ESP32 240MHz Xtensa® dual-core 32-bit LX6 microprocessor
Modular interface UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA  pre-amplifier
SIM card Only supports Nano SIM card
Power Supply USB 5V/1A
Wifi Protocol  802.11 b/g/n
Communication distance 300m 
Bluetooth Protocol  Bluetooth v4.2BR/EDR and BLE standard
Dimensions  78.83mm x 28.92mm x 8.06mm
Weight  12 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. What is TTGO call ESP32 SIM800L?

  • In addition to Wi-Fi and Bluetooth, this ESP32 board supports SMS and phone calls for communication, and you can use your SIM card's data plan to connect it to the internet. This is excellent for Internet of Things projects without access to a close-by router.

2. How do you use ESP32 SIM800L?

  • Upload the code to your T-Call ESP32 SIM800L board while the nano SIM card is in the module. Select the ESP32 Dev Module under Tools > Board. Select the COM port to which your board is attached by going to Tools > Port. To post the code to your board, click the upload button at the end.

3. What is TTGO t-display ESP32?

  • MYP-TGO-007 Categories: ESP32 Development Board, IoT & Wireless, LCD Display, Display & Camera, Arduino, Arduino Compatible Boards. An ESP32 development board called the TTGO T-Display is easily interfaced with a gorgeous 1.14" IPS LCD 65K rich colour display with a sharp 135X240 resolution.