LilyGO TTGO T-Call ESP32 - with SIM800C

Item number 57866 Brand LilyGO Model H447 Share Write a review
LilyGO TTGO T-Call ESP32 - with SIM800C
€ 20,20€ 16,70 Excl. VAT (NL)
Ordered before 23:59, shipped today. ... pieces in stock Almost sold out
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LilyGO TTGO T-Call ESP32 - with SIM800C

  • T-Call & SIM800C V02 2104: H447

The TTGO T-Call from LilyGO is a microcontroller based on an ESP32 in combination with an SIM800C GSM GPRS module. The USB to serial converter makes it easy to program, even as an Arduino. The board has a USB-C connection with which it can be programmed and/or powered (the USB-C cable is not included).


  • Supply voltage: 5V DC (via USB-C or 5V pin) of 3.3V DC (via 3V3 pin)
  • GPIO voltage: 3.3V*
  • Main chip: ESP32 (WROVER module, 240Mhz dual core processor)
    • Flash memory: 4MB
    • SRAM: 520 kB
    • PSRAM: 8MB
    • Built-in Wi-Fi
    • Built-in Bluetooth
  • USB to serial converter: CP2104 or CH9102F
  • Built-in SIM800C GSM GPRS module
  • Built-in Nano SIM card connection
  • Built-in power management chip (AXP192) with Li-ion/Li-Po battery charging circuit (~500mA charging current)
  • Battery connector: 2p JST-PH
  • Dimensions: 74.78 x 24.75 x 10.6mm

Shipping List:

  • 1x TTGO T-Call SIM800C
  • 1x Male header set
  • 1x Battery cable
  • 1x Antenna with cable

See the following page to get started with the board: TTGO-T-Call-ESP32

To program the board with the Arduino IDE select the 'ESP32 Wrover Module' in the board manager.

*Note: The pins on the board are directly connected to the ESP32 chip and are therefore only suitable for 3.3V signals.

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