LilyGO TTGO T-Call ESP32 SIM800L COM44, R28

DescriptionThe TTGO T-Call from LilyGO is a microcontroller based on an ESP32 in combination with an SIM800L 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 (USB-C cable not included).Specifications:Supply voltage: 5V DC (via USB-C) of 3.3V DC (via 3V3 pin)GPIO voltage: 3.3V*Output voltage: 5V DC (via 5V pin)Main chip: ESP32 (WROVER module, 240Mhz dual core processor)Flash memory: 4MBSRAM: 520 kBPSRAM: 8MBBuilt-in Wi-FiBuilt-in BluetoothUSB to serial converter: CP2104 or CH9102F (drivers)Built-in SIM800L GSM GPRS moduleBuilt-in Nano SIM card connectionBuilt-in power management chip (IP5306) with Li-ion/Li-Po battery charging circuit (~2A charging current)Battery connector: 2p JST-PHDimensions: See imagesPackage contents: 1x TTGO T-Call SIM800L 1x Male header set 1x Battery cable 1x Antenna with cable