LILYGO® TTGO T-Call V1.4 ESP32 Wireless Module SIM Antenna SIM Card SIM800L Module(H317)Designed by Lilygo in China
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 U...Read More…
Chipset:ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
FLASH:QSPI flash 4MB / PSRAM 8MB
SRAM : 520 kB SRAM
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: About 1.1mA
SIM card:Only supports Nano SIM card
Working temperature range:-40℃ ~ +85℃
Power Supply Specifications
Power Supply:USB 5V/1A
Battery:3.7V lithium battery
JST Connector:2Pin 1.25mm
Protocol:802.11 b/g/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval
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
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
User Configuration：AT + Instruction set, cloud server, android/iOSapp
T-Call V1.4 Pin Diagram:
T-Call V1.4 Size Chart
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