For TTGO TCall V1.4 ESP32 Wireless Communication Module

Feature:
This product is made of high quality PCB material, strong and durable.
Adopting high specification craft, carefully welding, precise hole position, complete functions.
Compliant with FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC WiFi standards, communication distance up to 300m.
For ESPRESSIF-ESP32240MHzXtensa single/dual-core 32-bit LX6 microprocessor for stable operation and powerful performance.
It is very easy to install and does not require particularly complicated operations.
Specification:
Material: PCB
Size: Approx. 78.83mmx28.92mmx8.06mm/3.10x1.14x0.32inch
Weight: Approx. 11.77g
Hardware

Specifications:
Chipset: For ESPRESSIF-ESP32 240MHz Xtensa single-/dual-core 32-bit LX6 microprocessor
Flash: For 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: Approx. 300uA
SIM Card: Only supports Nano SIM card
Working Temperature Range: -40℃-+85℃
Power Supply

Specifications:
Power Supply: USB 5V/1A
Charging Current: 500mA
Battery: 3.7V lithium battery
JST Connector: 2Pin 1.25mm/0.05inch
USB: Type-C
Wi-Fi Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC(For ESP32 chip)
Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) 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: Approx. 300m/984.25ft
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, for Android/iOS app
OS: For FreeRTOS

Package List:
1 x Module
1 x Power Cable
2 x Pin
1 x FPC Antenna
.
Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.