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 TTL：CH9102F QFN24

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 1.1mA

SIM card:Only supports Nano SIM card

Working temperature range:-40℃ ~ +85℃

Size&Weight:78.83mm28.92mm8.06mm(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(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

Bluetooth

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

More Information:

​Link:https://github.com/Xinyuan-LilyGO/LilyGo-T-Call-SIM800

T-Call V1.4 Pin Diagram:

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