ILYGO® TTGO T-Call V1.3 ESP32 Wireless Module GPRS Antenna SIM Card SIM800L Board

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ILYGO® TTGO T-Call V1.3 ESP32 Wireless Module GPRS Antenna SIM Card SIM800L Board

https://bogza.ro/index.php/ILYGO%C2%AE_TTGO_T-Call_V1.3_ESP32_Wireless_Module_GPRS_Antenna_SIM_Card_SIM800L_Board

Features

Module ILYGO® TTGO T-Call V1.3 ESP32 Wireless Module GPRS Antenna SIM Card SIM800L Board

More Information: https://github.com/Xinyuan-LilyGO/TTGO-T-Call

Package includes:

  1. 1 x T-Call V1.3
  2. 1 x Power cord
  3. 2 x Pin header
  4. 1 x GPRS antenna (9cm)

Schematic

Hardware Specifications

  • Chipset ESPRESSIF-ESP32 240MHz Xtensa® dual-core 32-bit LX6 microprocessor
  • FLASH QSPI flash 4MB / PSRAM 8MB
  • SRAM 520 kB SRAM
  • Button Reset
  • USB to TTL CP2104
  • Modular interface UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA pre-amplifier
  • On-board clock 40MHz crystal oscillator
  • Working voltage 2.7V-3.6V
  • Working current About 70mA
  • Sleep current About 300uA
  • SIM card Only supports Nano SIM card
  • Working temperature range -40℃ ~ +85℃
  • Size&Weight 78.83mm*28.92mm*8.06mm(11.77g)
  • Power Supply Specifications
  • Power Supply USB 5V/1A
  • Charging current 500mA
  • Battery 3.7V lithium battery
  • JST Connector 2Pin 1.25mm
  • USB Type-C
  • Wi-Fi
  • Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
  • Protocol 802.11 b/g/n(802.11n, speed up to150Mbps)A-MPDU and A-MSDU polymerization, support 0.4μS Protection interval
  • Frequency range 2.4GHz~2.5GHz(2400M~2483.5M)
  • Transmit Power 22dBm
  • Communication distance 300mbluetooth
  • Protocol meet bluetooth v4.2BR/EDR and BLE standard
  • Radio frequency with -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH
  • Audio frequency CVSD&SBC audio frequency


Software specification

  • Wi-Fi Mode Station/SoftAP/SoftAP+Station/P2P
  • Security mechanism WPA/WPA2/WPA2-Enterprise/WPS
  • Encryption Type AES/RSA/ECC/SHA
  • Firmware upgrade UART download/OTA(Through network/host to download and write firmware)
  • Software Development Support cloud server development /SDK for user firmware development
  • Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
  • User Configuration AT + Instruction set, cloud server, android/iOSapp
  • OS FreeRTOS

Software for the gateway: [1]