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TTGO T-Call ESP32 Development Board with SIM800L GSM/GPRS Module and Power Management IC

RM95.00

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SKU: MYP-TGO-008 Categories: ,
Description

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
  • SIM card: Only supports Nano SIM card
  • Working temperature range: -40℃ ~ +85℃
  • Size & Weight: 75.1530.6410.70mm(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

  • 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

 

T-Call&PMU Pin Diagram:

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T-Call&PMU Size Chart

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Comparison of T-Call & PMU and T-Call V1.3

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.

 

DOCUMENTATIONS

 

SHIPPING LIST

  • 1 X T-Call&PMU
  • 2 X Pin
  • 1 X SIM Antenna (7 cm)
  • 1 X Power Cable
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