TTGO T-Call V1.4 CH9102F ESP32 Wireless Module SIM Antenna SIM Card SIM800L/SIM800H Module And GSM/GPRS Antenna for arduino

The SIM800L Module is a compact and versatile GSM/GPRS module that offers reliable and efficient communication capabilities. It supports quad-band GSM/GPRS network and can be easily integrated into various applications such as IoT devices, security systems, and remote monitoring systems. With its small form factor and low power consumption, this module is ideal for projects that require wireless connectivity in a space-constrained environment. It also features a built-in TCP/IP stack, allowing for seamless internet connectivity. The SIM800L Module is a reliable and cost-effective solution for wireless communication needs.

Hardware Specifications

Chipset ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor

FLASH QSPI flash 4MB / PSRAM  8MB

SRAM  520 kB SRAM

Button Reset

USB to TTL CH9102F

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 ~ +85

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(esp32 chip)

Protocol 802.11 b/g/n(802.11n,speed up to150Mbps)A-MPDU and A-MSDU polymerization,support 0.4S 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/OTAThrough 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

CH9102 V1.4 Version

• 1 X T-Call SIM800H (4MB or 8MB)

• 1 X Power Cable (PH 2pin 2.0mm)

• 1 X SIM Antenna (7cm)

• 2 X Pin

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ESP32 SIM800L Module and GSM/GPRS Antenna for arduino
lahiru Dhananjaya

SIM808 Module GSM GPRS GPS Development Board SMA With GPS Antenna

• 1.Three power input interface: DC044 interface and V_IN and a lithium battery interface.
  Note that: The range of DC044 and the V_IN pin voltage input is 5 – 26V, when use the 5V as the power, be sure that the power supply can provide 2A current.
  The range of voltage of Lithium battery input power is 3.5 – 4.2V.
• 2. Switch: It is used to open / close the input power supply for the module. When in use, please confirm the toggle switched to the OPEN state (near the board inside).
• 3. SMA antenna interface: there is a GSM antenna interface, a GPS antenna interface onboard and a BT antenna interface.
• 4. Start button: When the board is power on, the LED (PWR) will light up. After a long press (about 2 second) on this button, the other three LEDs will be light.
  And one of them starts to flash; this suggests that SIM808 is beginning to work now. When the power supply, GSM and GPS antenna and SIM card are connected to the module correctly,
  the LED will be flash slowly    (3Second de 1second light), that indicates that the module is registered to the network, and you can make a call or do something else.
• 5. TTL serial interface: a TTL level interface. Notice that: The pin of VMCU is used to control the high level of TTL UART, so as to realize to match between 1.25V/3.3V /5V systems.
  For example, if you want to use the 51 MCU to control this board, the pin of VMCU should be connected the DC5V. And if use the STM32 MCU, the pin of VMCU should be connected the DC3.3V.
  The pins of RXD is the RXD of SIM808 and the pins of TXD is the TXD of SIM808. The pin of V_IN can connect the Power, the function of this pin has the same function of DC044.
• 6. USB interface: This interface is just use to update the firmware of SIM808 module.

Operation Description:

Preparation:
– SIM808 SHIELD
– DC9V adapter
– USB-TTL module or other tools.
PC software
– Hardware configurations
– Connect the USB-TTL to the UART interface

USB-TTL  SIM808
TXD       RXD
RXD       TXD
GND      GND

– Insert the valid SIM card to the SIMCARD holder.
– Connect the GPS antenna and GSM antenna to the board
– Connect the power adapter to the DC044 Interface
– Change the switch
– Press the POWKEY button for 2 second, the SIM808 module will work and the other 3 LEDs will light.

Package Included:

• 1 x SIM808 Module
• 1 x GSM Antenna
• 1 x GPS Antenna

SIM808 Module GSM GPRS GPS Development Board SMA With GPS Antenna
Ashen Premathilake