SIM 800A GSM Modem with SMA Antenna The SIM800A Dual-Band GSM/GPRS Module with RS232 Interface is a complete solution for Dualband GSM/GPRS communication. With the SIM800A GSM module, you can transmit voice, texts, and data over mobile carriers and communicate with it using protocols such as RS232, UART, and I2C. This GSM module can be easily configured using AT commands, making it an ideal choice for interfacing with various microcontrollers and/or PCs. It also has a built-in SIM slot and can connect to networks operating at the supported frequency, providing you with a new channel of communication through voice, SMS texts, and data. The SIM800A module includes an SMA connector and antenna, ensuring reliable signal strength to the network. Connection Details: The module has to be powered through the onboard DC jack with an input voltage between 9-12V The module can be connected to the microcontroller via the onboard UART or I2C pins. The module also contains an onboard RS232 connector, to connect to other devices via RS232 protocol. Connections with Microcontroller: Micro-controller SIM800A 5V VCC (not required if powered externally GND GND Tx Rx Rx Tx Features: Quad-band GSM/GPRS module Frequencies supported: GSM 850MHz, EGSM 900MHz, DCS 1800MHz, and PCS 1900MHz Supports GPRS multi-slot class 12/ class 10 (optional) GPRS coding schemes supported: CS-1, CS-2, CS-3, and CS-4 SMA antenna connector RS232 interface for communication UART and I2C breakouts for easy connection with a computer or laptop Inbuilt powerful TCP/IP protocol stack for internet data transfer over GPRS Low power consumption Operating temperature range: -40°C to +85°C Some models may support Bluetooth function Programmable general-purpose input and output (GPIO) Power supply voltage: 12V Dual-band frequency range: 900/1800MHz Applications: Remote Data Monitor and Control. IoT Applications AMR (automatic meter reading). Power station monitoring and control. Remote POS (point of sale) terminals. Traffic signals monitor and control. Fleet management. Vending machine. Traffic info guidance. Parking meter and Taxi Monitor. Telecom equipment supervision (Mobile base station, microwave or optical relay station)

Sim 800C GSM Modem with Battery The SIM800C GSM Modem with Battery is a versatile and powerful modem that can be used for a variety of applications, including data and SMS. It is compatible with a wide range of networks and features a built-in battery for long-term operation. Features : Quad-band GSM/GPRS support Built-in battery Low power consumption Wide temperature range Compatible with a variety of networks Easy to use Applications : Data SMS IoT Robotics Automation Smart home And more The SIM800C GSM Modem with Battery is a powerful and versatile tool that can be used for a variety of applications. It is easy to use and compatible with a wide range of networks. If you are looking for a reliable and powerful modem, the SIM800C is a great option.

SIM 800C GSM Modem with SMA Antenna This is SIM 800C GSM Modem with SMA Antenna, The baud rate range of the GSM Module can be easily configured using AT commands, allowing you to set it anywhere between 9600 and 115200. This versatile GSM GPRS Modem incorporates an internal TCP/IP stack, enabling seamless internet connectivity through GPRS. Its capabilities make it a perfect choice for M2M interface applications that involve SMS, voice, and data transfer. One of the standout features of this modem is its onboard regulated power supply, which offers compatibility with a wide range of unregulated power sources. This means you can connect the modem to various power inputs without any hassle. With this modem at your disposal, you can effortlessly perform numerous tasks such as making audio calls, sending and receiving SMS, reading SMS, and accessing the internet using simple AT commands. The modem utilizes the highly reliable Quad-Band GSM/GPRS engine SIM800C, manufactured by SIMCOM, which operates on frequencies ranging from 850 MHz to 1900 MHz. To establish a direct connection with a computer or any other RS232 compatible devices, the modem features a convenient DB9 female connector. The necessary RS232 level conversion is seamlessly achieved through the use of the reliable MAX3232 module from MAXIM Semiconductor. To power the modem, a 5-12V DC power supply is required, and you have the option to provide it either through the onboard 2-pin RMC connector or the DC jack. To effectively handle situations where high surge currents (up to 2A) may be encountered, the modem is equipped with a robust high current low dropout linear voltage regulator. Connection Details: The module has to be powered through the onboard DC jack with an input voltage between 9-12V The module can be connected to the microcontroller via the onboard UART or I2C pins. The module also contains an onboard RS232 connector, to connect to other devices via RS232 protocol. Micro-controller SIM800C 5V VCC (not required if powered externally) GND GND Tx Rx Rx Tx Features: Quad-Band 850/900/1800/1900MHz. RS232 interface for direct communication with computer or MCU kit. Configurable baud rate. ESD Compliance. With slid in SIM a card tray. With a Stub antenna and SMA connector. High-quality PCB FR4 Grade with FPT Certified. Applications: Remote Data Monitor and Control. IoT Applications AMR (automatic meter reading). Power station monitoring and control. Remote POS (point of sale) terminals. Traffic signals monitor and control. Fleet management. Vending machine. Traffic info guidance. Parking meter and Taxi Monitor. Telecom equipment supervision (Mobile base station, microwave, or optical relay station)

SIM A7670C 4G LTE Development Board with 4G Antennaneeds Need a boost for your LTE projects? Check out the SIM A7670C 4G LTE Development Board with 4G Antenna! This board gives you fast LTE speeds—up to 10Mbps down and 5Mbps up. It’s compact and easy to connect to your computer with USB or TTL converters. Also, it is need very little power when in sleep mode, which is ideal for battery-powered applications. The included 4G antenna provides a stronger signal and connects effortlessly via the UFL connector. If you're working on routers, surveillance systems, or other remote settings, this combination keeps everything going smoothly.

SIM7670C 4G LM137 with Antenna(GSM 4G Foldable)- ADIY The ADIY 4G LTE modem is equipped with a SIM card socket, an SMA antenna connector, a DC power jack, and an RS232 interface. It supports various wireless communication modes including LTE-TDD, LTE-FDD, GSM, GPRS, and EDGE. This board is centered around the SIMCOM A7670C LTE module and is furnished with an RS232 interface. The RS232 interface allows for effortless connectivity to a computer or laptop using a USB to Serial connector, or to a microcontroller using an RS232 to TTL converter. Additionally, a 3-pin header provides access to a 1.8V level UART interface, enabling direct interfacing with microcontrollers. Communication with the A7670C module is achieved through the utilization of AT commands. Pinout: Pinout Of SIM7670C 4G LM137 Features: Serial interface Based on the SIMCOM A7670C LTE modem Supports LTE-FDD, LTE-TDD, and GSM frequency bands Controlled via AT commands SIM card holder included SMA antenna connector DC power jack RS232 interface Suitable for LTE and GSM networks Maximum downlink rate of 10Mbps Abundant software functions such as FOTA, LBS, and SSL RS232 DB9 Connector interface SMA connector for external antenna 1.8V UART header

SIM800 GSM Modem module board with SMA Antenna The SIM800 GSM Modem Module Board with SMA Antenna is a quad-band GSM/GPRS module that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz. SIM800 features GPRS multi-slot class 12/ class 10 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. Features : Quad-band GSM/GPRS module Works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz GPRS multi-slot class 12/ class 10 (optional) Supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4 Support Bluetooth function Programmable general purpose input and output Power supply voltage of board: 12V TTL connector for Arduino and Raspberry Pi board interface AT command support PPP internet mode support Applications : IoT devices Smart home devices Industrial automation Asset tracking Vehicle telematics Security systems And more! The SIM800 GSM Modem Module Board with SMA Antenna is a versatile and powerful tool that can be used in a wide variety of applications. With its quad-band GSM/GPRS capabilities and support for Bluetooth, it is ideal for a variety of IoT and M2M applications. The module is also easy to use and can be interfaced with a variety of microcontrollers and development boards.

Sim800 GSM-GPRS-Bluetooth Modem Sim800 Break out board has on Board Bluetooth Antenna and works same like sim900a with extra features like on board Bluetooth.(Bluetooth Firmware Needs to be Upgraded) On Board Power regulator, works on 9V 1A DC Power Switch, Reset Switch, Power LED Ring LED Network LED UART Serial DB9 Connector TTL Pins And external Interfacing Pins. Works with AT Commands for sim800. @ 9600 Baud rate (Configurable) Features: Power Switch, Reset Switch, Power LED Ring LED Network LED UART Serial DB9 Connector TTL Pins And external Interfacing Pins. Works with AT Commands for sim800 @ 9600 Baud rate (Configurable)

SIM800 UART TTL GSM Modem Module With SMA Antenna SIM800 is a quad-band GSM/GPRS module that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz. SIM800 features GPRS multi-slot class 12/ class 10 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. The baud rate is configurable from 1200-115200 through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with the internet via GPRS. SIM800 is an ultra-compact and reliable wireless module. This is a complete GSM/GPRS module in an SMT type and designed with a very powerful single-chip processor. Features Quad-band GSM/GPRS module that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz, and PCS 1900MHz GPRS multi-slot class 12/class 10 (optional), and supports CS-1, CS-2, CS-3, and CS-4 GPRS coding schemes Configurable baud rate that can be set between 1200-115200 through AT commands Internal TCP/IP stack to enable internet connection via GPRS One UART port and one USB port SMA antenna that needs to be assembled to the modem Accepts any GSM network operator SIM card Highly reliable for 24x7 operation with matched antenna Status of the modem indicated by LED Low power consumption Can be used for applications like SMS control, data transfer, remote monitoring, traffic signals monitor and control

SIM800A GSM/GPRS Serial & TTL Modem The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a comprehensive solution for Quad-band GSM/GPRS communication, packaged in an LGA (Land Grid Array) format suitable for embedding in customer applications. The SIM800A module supports Quad-band operation across 850/900/1800/1900 MHz frequencies, enabling transmission of voice, SMS, and data with low power consumption. With its compact dimensions of 100 x 53 x 15 mm, the module can easily meet the slim and compact requirements of custom designs. It includes an Embedded AT command set, offering cost savings and rapid time-to-market for customer applications. The SIM800A modem features a GSM chip and an RS232 interface, allowing convenient connection to computers or laptops using a USB to Serial connector, or to microcontrollers using an RS232 to TTL converter. When connecting the SIM800A modem via the USB to RS232 connector, it is necessary to identify the correct COM port from the Device Manager of the USB to Serial Adapter. Once the connection is established, you can use terminal software like Putty to open a connection to the designated COM port at a baud rate of 9600, which is the default baud rate for this modem. After establishing a serial connection through the computer or microcontroller, you can begin sending AT commands. When sending AT commands (e.g., "ATr"), the SIM800A modem should respond with "OK" or another appropriate reply depending on the specific command sent. Features: Quad-band 850/900/1800/1900MHz. GPRS class 2/10. Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT command set). High-Quality Product (Not hobby grade). 5V interface for direct communication with MCU kit. Configurable baud rate. Built-in SIM Cardholder. Built-in Network Status LED. Inbuilt Powerful TCP/IP protocol stack for internet data transfer over GPRS. Low power. Applications : Remote Data Monitor and Control. Water, gas, and oil flow metering. AMR (automatic meter reading). Power station monitoring and control. Remote POS (point of sale) terminals. Traffic signals monitor and control. Fleet management. Power distribution network supervision. Central heating system supervision. The weather station data transmission. Hydro-logic data acquisition. Vending machine. Traffic info guidance. Parking meter and Taxi Monitor. Telecom equipment supervision (Mobile base station, microwave or optical relay station).

SIM800A LM317 with Antenna(GSM Finger)- ADIY The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a comprehensive solution for Quad-band GSM/GPRS communication. It comes in an LGA (Land grid array) form factor and offers low power consumption while enabling voice, SMS, and data transmission. This module supports the 850/900/1800/1900 MHz bands. To establish a connection with a computer, laptop, or microcontroller, the GSM module features an RS232 interface, which can be utilized through either a USB to Serial connector or an RS232 to TTL converter. Communication with the SIM800A module is achieved using AT instructions. The module comes with a SIM cardholder and an SMA antenna connector. The SIM800A modem consists of a SIM800A GSM chip and an RS232 interface, facilitating easy connections to PCs or laptops via USB to Serial or to microcontrollers using the RS232 to TTL converter. Once the SIM800A modem is connected to the USB to RS232 connector, the correct COM port should be selected by checking the Device Manager of the USB to Serial Adapter. Next, a serial connection needs to be established between the computer and the microcontroller by using a terminal program such as Putty. The connection should be made to the designated COM port at a baud rate of 9600, which is the default baud rate for the modem. Once the serial connection is established, AT commands can be transmitted. For example, sending the command "ATr" should elicit a response of "OK" or another relevant response from the SIM800A modem, depending on the provided command. check out : Sim800 GSM-GPRS-Bluetooth Modem Pinout: Pinout Of SIM800A LM317 with Antenna Features: Quad Band GSM/GPRS modem Supports LTE-FDD, LTE-TDD, and GSM frequency bands Dual frequency of 900/1800 MHz Operating temperature range: -40°C to +85°C Can be connected to a computer or microcontroller Connection options: USB to Serial connector or RS232 to TTL converter Applications: Parking Meter and Taxi Meter For Detection of Navigation