TTGO T-Call V1.3 ESP32 & SIM800L Wireless Module (with Antenna)
TTGO T-Call V1.3 ESP32 & SIM800L Wireless Module (with Antenna)
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TTGO T-callย is a modified ESP32 (ESP-WROVER-B 8MB PSRAM) development board with an integrated SIM800L 2G/GPRS module. The USB Type C pluggable board includes an integrated LiPo Battery Charging Circuit & Connector and is an excellent solution for developing IoT applications. Aside from Wi-Fi and Bluetooth, you may useย GSM/GPRS technologyย to communicate with this development board, and you can connect it to the internet using your SIM card data plan. This is ideal for IoT applications without access to a local router. The TTGO T-call kit comprises header pins, a battery connector, and an external PCB antenna that may be connected to your board.
Specifications
Chipset | ESPRESSIF-ESP32 240MHz Xtensaยฎ dual-core 32-bit LX6 microprocessor |
FLASH | QSPI flash 4MB / PSRAM 8MB |
SRAM | 520 kB SRAM |
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 | -40โ ~ +85โ |
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 | |
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 polymerisation, support 0.4ฮผS 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 |
Radiofrequency | 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 |
Country of Origin | China |
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Following are the stock percentages available in the sale:
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All products sold on a first-come, first-served basis are subject to our No Refund Policy. As part of this policy, the company will randomly select five customers out of every 100 orders to receive smartphone products. The remaining orders may be canceled, or the customer may opt to receive a branded T-shirt of equivalent value. If the customer objects to receiving a T-shirt or want for refund,
A full refund will be issued to their company-created digital wallet within 30 days. Please note that this offer is discretionary and involves a risk of non-receipt of the desired product. By placing an order, you acknowledge and agree to these terms."



