LILYGO® TTGO T-Call&PMU ESP32 Wireless Module SIM Antenna SIM Card SIM800L Module(H428)Designed by Lilygo in China
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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 t…Read More…
Chipset:ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
FLASH:QSPI flash 4MB
SRAM:520 kB SRAM / PSRAM 8MB
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
SIM card:Only supports Nano SIM card
Working temperature range:-40℃ ~ +85℃
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
Protocol:802.11 b/g/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval
Communication distance: 300m
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
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&PMU Pin Diagram:
T-Call&PMU Size Chart
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:
Change the power IC to AXP192 PMU management, support coulomb counter and high precision voltage and current Test function.
SIM800L RI Pin leads to ESP32, can accept voice or data calls, Wake up from received message.
The SIM800L DTR Pin leads to SP32, which can wake up SIMM800L from sleep state.
1 X T-Call&PMU
2 X Pin
1 X SIM Antenna *1(7 cm)
1 X Power Cable*1
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