TTGO T-Call V1.4 ESP32 Wireless Module GPRS Antenna SIM Card SIM800L Module

Description

LILYGO® TTGO T-Call&PMU ESP32 Wireless Module GPRS Antenna SIM Card SIM800L Module
As the price of the CP2104 chip is rising, and the CH9102F QFN24 can be rplaced it ,we recommend the CH9102F QFN24 version.
If you still need the CP2104 version , please contact customer service to inquire directly .
Product Description
Hardware Specifications
Chipset
ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
FLASH
QSPI flash 4MB
SRAM
520 kB SRAM  / PSRAM  8MB
Button
Reset
USB to TTL
CP2104
Modular interface
UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、capacitor touch sensor、ADC
On-board clock
40MHz crystal oscillator
Working voltage
2.7V-3.6V
Working current
Sleep current
SIM card
Only supports Nano SIM card
Working temperature range
-40℃ ~ +85℃
Size&Weight
75.15*30.64*10.70mm(14.5g)
Power Supply Specifications
Power Supply
USB 5V
Charging current
The charging current is programmable and self-adjustable (default 500mA)
Battery
3.7V lithium battery
JST Connector
2Pin 2.0mm
USB
Type-C
Wi-Fi
Description
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
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
https://github.com/Xinyuan-LilyGO/TTGO-T-Call
T-Call&PMU Pin Diagram:
T-Call&PMU Size Chart
Product Detail
Comparison of T-Call & PMU and T-Call V1.3
T-Call & PMU and T-Call V1.3 comparison:
AXP192 is the power supply used on the T-Call & PMU board. It is an upgraded version of T-Call V1.3:
1. Change the power IC to AXP192 PMU management, support coulomb counter and high precision voltage and current
Test function.
2. SIM800L RI Pin leads to ESP32, can accept voice or data calls,
Wake up from received message.
3. The SIM800L DTR Pin leads to SP32, which can wake up SIMM800L from sleep state.
Shipping List
1 X T-Call&PMU
2 X Pin
1 X GPRS Antenna *1(7 cm)
1 X Power Cable*1