Name: TTGO T-Call V1.4 ESP32 Wireless Module, 2.4GHz SIM800L Development Board | Makers Electronics
SKU: H317
Price: 850.00 EGP
Availability: OutOfStock

Hardware Specifications
Slices	ESPRESSIF-ESP32 240MHz Xtensa® Single/Dual Core 32-bit LX6 Processor
flash	QSPI Flash 4MB/PSRAM 8MB
SRAM	520 kB SRAM
button	Re
USB to TT	CP2104 or CH9102F QFN24 or CH340K
interface modules	UART, SPI, SDIO, I2C, PWM, I2S, ADC
aboard an hour	40MHz Crystal Oscillator
working voltage	2.7V-3.6V
current work	about 70mA
current sleep	about 1.1mA
sim card	Only supports nano SIM card
Working temperature range	-40℃~+85℃
size and weight	78.83mm * 28.92mm * 8.06mm (11.77g)
power supply specifications
Power supply	USB 5V/1A
charging current	500mA
the battery	3.7V lithium battery
JST connector	2Pin 2.0mm
USB	Type-C
WIFI
standard	FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC (esp32 chip)
protocol	802.11 b/g/n(802.11n, up to150Mbps acceleration) A-MPDU and A-MSDU polymerization, support 0.4μS protection interval
Frequency range	2.4GHz ~ 2.5GHz (2400M ~ 2483.5M)
The transfer of energy	22dBm
communication distance	300m
Bluetooth
protocol	Meet Bluetooth v4.2BR/EDR and BLE standard
radio frequency	With -97dBm sensitivity of NZIF Receiver Class 1, Class 2 and Class 3 AFH emitter
sound frequency	CVSD and SBC audio frequency
Specification program
wifi mode	Terminal/SoftAP/SoftAP + Terminal/P2P
security mechanism	WPA/WPA2/WPA2-Enterprise/WPS
Encoder type	AES/RSA/ECC/SHA
Firmware upgrade	UART download/OTA (through network/host to download and write firmware)
Software development	Support cloud server/SDK development for user firmware development
networking protocol	IPv4、IPv6、SSL、TCP/UDP/HTTP/FTP/MQTT
Configuration user	AT+ instruction set, cloud server, Android/iOSapp
OS	FreeRTOS