Custom TTGO T-Call V1.4 / V1.5 ESP32 Wireless Module SIM Antenna SIM Card SIM800L Module Manufacturer
Product Description Hardware Specifications Chipset ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash 4MB / PSRAM 8MB SRAM 520 kB SRAM Button Reset USB to TT CP2104 or CH9102F QFN24 or CH340K Modular interface UART,SPI,SDIO,I2C,PWM,I2S,ADC On-board clock 40MHz crystal oscillator Working voltage 2.7V-3.6V Working current About 70mA Sleep current About 1.1mA 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 2.0mm USB Type-C Wi-Fi Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC(esp32 chip) 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 300m BT Protocol meet bT 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 More Information: https://github.com/Xinyuan-LilyGO/LilyGo-T-Call-SIM800 Windows Driver Link: http://www.wch.cn/downloads/CH343SER_EXE.html T-Call V1.4 Pin Diagram: Connect the power supply, click to start, after start, click to reset,clicktwice to shut down. T-Call V1.4 Size Chart Product Detail Shipping List 1X T-Call CP2104 V1.4 Version / CH9102 V1.4 Version / CH340K V1.5 Version 1X Power Cable(PH 2pin 2.0mm) 1X SIM Antenna(7 cm) 2X Pin