TTGO T-Call ESP32 SIM800L GSM Description:
The wireless module is integrated with ESPRESSIF-ESP32 240MHz Xtensa dual-core 32-bit LX6 microprocessor. TTGO T-Call v1.3 ESP32 Wireless Module and SIM800L GPRS Module (with Antenna) NON PTA . T-Call ESP32 SIM800L GSM Module on Pakistan.
It needs a power supply of 5V/1A and has a Type C port.
It features 802.11 b/g/n Wifi protocol and Bluetooth v4.2BR/EDR and BLE standard protocol.
- The wireless communication module supports cloud server development and SDK for user firmware development.
- On-board clock 40MHz crystal oscillator SIM card Only supports Nano SIM card
- T-Call V1.4 ESP32 SIM800L GSM Module on Pakistan
- Important: The SIM800L works on 2G networks, so it will only work in your country, if 2G networks are available. Check if you have 2G network in your country, otherwise it won’t work.
T-Call ESP32 SIM800L GSM Features with Detail:
Board clock: 40 MHz quartz oscillator
Operating voltage: 2.7 V – 3.6 V.
Working current: over 70 mA.
Sleep current: over 300uA
SIM card: only support Nano SIM cards
Working temperature range: -40°C ~ +85°C
Size and weight: 78.83mm x 28.92mm x 8.06mm (11.77g)
Power supply specifications:
Power supply: USB 5V / 1A
Charging current: 500 mA.
Battery: 3.7 V lithium battery.
JST connection: 2-pin, 1.25 mm
USB: Type C
Standard: FCC / CE RED / IC / TELEC / KCC / SRRC / NCC
Protocol: 802.11 b / g / n (802.11n, speed up to 150 Mbit / s) A-MPDU- and A-MSDU polymerization, support a protection interval of 0.4 μS
Frequency range: 2.4 GHz ~ 2.5 GHz (2400 M ~ 2483.5 M)
Transmission power: 22 dBm
Communication distance: 300m
Protocol: meet Bluetooth v4.2BR / EDR and BLE standard.
Radio frequency: with a sensitivity of -97 dBm NZIF receiver class 1, class 2 and class 3 transmitter AFH
Audio frequency: CVSD and SBC audio frequency
Wi-Fi mode: Station / SoftAP / SoftAP + Station / P2P
Safety mechanism: WPA / WPA2 / WPA2-Enterprise / WPS
Encryption Type: AES / RSA / ECC / SHA
Firmware upgrade: UART download/OTA (via network/host for downloading and writing firmware)
Software Development: Support Cloud Server Development/SDK for Development of User Firmware
Network protocol: IPv4, IPv6, SSL, TCP / UDP / HTTP / FTP / MQTT
User configuration: AT + command set, cloud server, Android/iOS app
Operating System: Free RTOS
More information: https://github.com/Xinyuan-LilyGO/TTGO-T-Call