TTGO T-Call v1.3 ESP32 Wireless Module & SIM800L GPRS Module

₹1,649.00 ₹ 1397.46 + 251.54 GST
Out of stock

Note: This product is discontinued and replaced by a newer model with extra features. Click to view the latest model - TTGO TCall V1.4

This is a custom ESP32 (ESP-WROVER-B 8MB PSRAM) based development board with an onboard 2G/GPRS Module SIM800L. The USB Type C pluggable board also has an onboard LiPo Battery Charging Circuit & Connector and is a good choice for building IoT applications.


Note : This TTGO V1.3 is the older model. It has been replaced with the newer Verson V1.4 which has Mic and speaker to it. You can order the New and Improved version here

Hardware Specifications  :
Chipset ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
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 About 300uA
SIM card Only supports Nano SIM card
Working temperature range -40°C ~ +85°C
Size&Weight 78.83mm*28.92mm*8.06mm (11.77g)
Power Supply Specifications  :
Power Supply USB 5V/1A
Charging current 500mA
Battery 3.7V lithium battery
JST Connector 2Pin 1.25mm
USB Type-C
Wi-Fi Description :
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 300m
Bluetooth Description :
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 Description :
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
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