G wireless communication module

2.4GHz Wireless Communication Module Embedded Compatible With Bluetooth Protocol Beacon Package contains 1 X item of the smallest listed variant.

Buy HD0S100 NB-IoT WIFI Wireless Communication Module N92 IoT Navigation Positioning 3.8-4.2V PPS Output for R336.00

5Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 5 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

3Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 3 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

Description: It can be directly plugged into the power circuit, use the APP to add devices and connect to the WIFI router, thus achieving networking and remote control without adding a host. Mobile remote control anytime, anywhere. Feature: Product Name: Smart Switch Control method: Mobile APP (Smart Life) Transmission method: WIFI communication Size: 150L*40W*25H (MM) Control distance: infinity Controllable line: 1 way Wireless networking: WIFI (802.13B/G/N) Its own power consumption: ≤ 0.45W Working temperature: -15 ° C ~ 80 ° C Power input: AC90-250V 50/60Hz Withstand power: Terminal platform: Android / IOS Works with Amazon Alexa Works with Google Home Works with Smartlife Application Package included: 1 x Wireless Wifi Switch Universal Automation Smart Home Module 1 x Chinese-English Manual

Buy 10pcs NRF24L01 Wireless Module 24L01 2.4G Wireless Communication Module for R279.03

Buy 5pcs NRF24L01 Wireless Module 24L01 2.4G Wireless Communication Module for R248.00

Buy 5Pcs 915MHz SW915-TH12 Copper Spring Antenna For Wireless Communication Module for R65.00

Buy 50Pcs 915MHz SW915-TH12 Copper Spring Antenna For Wireless Communication Module for R504.22

Paradox PCS250 GSM Communicator Module The Paradox PCS250 GSM Communicator Module is the next evolutionary step in wireless communication solutions for Paradox control panels. Providing reliable and fast communication between properties and their respective monitoring stations, the PCS250 is the vital link that keeps you connected. Using cellular networks, the PCS250 reports to the monitoring station¿s automation software via two channels (GPRS/GSM), ensuring that all communication is fast, reliable, and stable.The PCS250 can be used as a backup to a traditional landline, or as a primary communicator where no landline is available. It also adds remote home control capabilities to a system, allowing you to arm/disarm with a simple text message (SMS). Feel safe by taking control of your system, wherever you are. Re-imagined through an array of new technologies, contemporary design, and a modern hi-tech finish, the PCS250 GPRS/GSM Communicator Module enables Paradox systems to be remotely controlled, continuously monitored, and reliably connected at all times. Compact, sleek design Report events to the IPR512 GPRS/IP Monitoring Receiver and/or IPRS-7 IP/GPRS PC Receiver Software Report via text message (up to 16 cell phone numbers) Control panel communication supervision End-user can arm or disarm the system by sending a text message (SMS) to the PCS250 Send pre-recorded voice messages to up to 8 telephone numbers to report alarms using the optionalVDMP3 Paradox Plug-in Voice Module (GSM mode) Simple installation with 4-wire serial connection Optional rod antenna can be installed up to 18m (60ft) from the module using optionalantenna cable extensions depending on the local signal strength 128-bit (MDS) and 256-bit (AES) encryption (GPRS mode) Increase the distance between the panel and the PCS250 module with an RS485 link (GSM mode only via e-bus).A CVT485 module must be added to the panel in order to accomplish this Report via GSM (CID, SIA)

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: SOC characteristics: Built-in 160MHz MIPS RISC processor 512K SRAM Communication rate: 72Mbps (20MHz) Optimal balance & LLR quantification Wi-Fi features: Support 802.11 a/b/g/n, 2.4-2.5GHz, 4.9-5.85GHz 2.4GHz Rx sensitivity: -75dBm/11n HT20 MCS7, Tx Power: 21dBm 5GHz Rx sensitivity: -74dBm/11n HT20 MCS7, Tx Power: 16.5dBm Support Station, SoftAP mode Support Wi-Fi Direct (P2P) Supports CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC P2P discovery, P2P GO mode/GC mode and P2P power management Seamless roaming support Support AT remote upgrade and cloud OTA upgrade Support Android and iOS device SmartConfig function Module peripheral: 2xUART 3xADC 1xHSPI 1xI2C 1xI2S 2xDMA 2xPWM Up to 23xGPIOs 2M bytes SPI Flash Operating temperature range: -30 ° C -85 ° C Module size: 18mm × 30mm Application scenario: Wireless image transmission Home automation Smart Home Mesh Network Baby monitor IP camera Sensor network Wearable electronics Security ID tag Wireless location awareness Wireless positioning system beacon Industrial wireless control Package Includes: 5 x DT-W5G1 2.4G 5G Dual Frequency Module 5pcs Probe Firmware DT-W5G1 5G WiFi Module 2.4g/5g Dual-band Module with Antenna Interface For Wireless Image Transmission 5pcs Probe Firmware DT-W5G1 5G WiFi Module 2.4g/5g Dual-band Module with Antenna Interface For Wireless Image Transmission 5pcs Probe Firmware DT-W5G1 5G WiFi Module 2.4g/5g Dual-band Module with Antenna Interface For Wireless Image Transmission

GSM/GPRS Shield Expansion Board EFCom Wireless Module With Antenna Description: The GPRS Shield-EFCom expansion board is a serial GSM / GPRS wireless module. Arduino enthusiasts to quickly learn a GSM / GPRS mobile phone development, and can be applied to wireless development projects to the class, but also suitable for remote control development, such as wireless meter reading, smart appliances, ultra-long-range control.   EFCom compatible with all the Freaduino and standards the Arduin development board. EFCom is a 4-band GPRS / GSM module supports four standard band 850/900/1800/1900MHz, send SMS messages, phone calls, faxes, etc. all GPRS handsets have features. EFCom allows your very fast phone development process and the wireless development.   EFCom SIM900 is a patch type GSM / GPRS integrated single-chip, ARM926EJ-S core, build enthusiasts and learn to use the smallest integrated development environment.   The EFCom using AT commands through UART serial configuration settings only need to extend the board into Freaduino board, you will be able to easily control via AT commands EFCom make calls, send text messages... addition EFCom support LCD5110 display (default hair Bluetooth backlight, is inserted in EFCom effect diagram below) and serial keypad keyboard input.   The board set the hardware boot the Button Software boot (D10), hardware RestButton, software Rest (D9) allows use and arduino spiritual and match to meet various types of both hard boot or soft boot or the hard reset or soft restart DIY needs. The two jump take to D0-D3, you are excelent to choose EFCom Arduino communication: software serial port (jumper cap to D2, D3) or hardware serial port (D0, D1).   EFCom three operating modes: Short Message Service SMS service mode Audio music mode GPRS mode Features: Fully compatible the Arduino and Mega2560 development board series Serial communication, the freedom to choose hardware serial port (D0/D1) or software serial communication (D2/D3) and motherboard SIM900, all the IC set aside not only the UART, DEBUG mouth, all GPIO port and KEY PANEL interface Board super capacitor to ensure the RTC work Support both hardware and software switch machines, support for hardware and software restart 4 band 850/900/1800/1900 MHz   Specification: The GPRS Shield power supply 5V GPRS multi-slot class 10/8 GPRS mobile station class B Compliant to GSM phase 2/2 +  - Class 4 (2 W@850/900 MHz)  - Class 1 (1 W@1800/1900MHz) Weight: 3.4g Control via AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT Commands) SIM application toolkit Supply voltage range: 3.1 - 4.8V Low power consumption: 1.5mA (sleep mode) Operation temperature: -40 ° C to +85 ° C Note: Plug Freaduino / Arduino Main Board, in connection we 9V DC AC adapter. The reason is the need EFCom boot current and maximum peak current 2A, but the USB port is unable to provide such a large current, so must an external power supply equipment.Your SIM card is not lockedBest EFCom communication baud rate of 19200 bps 8-N-1(EFCom default automatic pairing baud rate) Package included: 1 x EFCom wireless module 1 x Quad-Band antenna IO definition: Dimension:   PCB:

433Mhz GSM Gateway Wireless Terminal Home Burglar Alarm Dialer System Description: 433Mhz GSM Gateway Wireless Terminal Home Alarm System Home Burglar Alarm Dialer Fixed Cellular TerminalWhile the GSM Gateway is installed with a SIM card, it can fucntion as a mobile phone device.Normal analogue telephony devices (e. g. Cordless or Desktop Phone / FXO / PBX / VoIP equipment, etc.) could be connected to this GSM gateway.All the calls or communications will be accessed and transmitted via GSM network instead of traditional Copper Phone Wires.Features: 1. Multicolor backlight display (e. g.: blue, green)2. Can dial the local calls, mobile calls, international calls and special free calls3. Supports modem mode4. No need to dial area code when calling local numbers5. Automatically connects to IP network when dialing long distance(optional)6. Automatic card-locking and netwok -locking enable7. Caller ID display, time and date display, the power supply of battery can display at the same time on the LCD.8. Cost rate setting enableSpecifications: 1. Networks support: GSM900/1800MHz2. Frequency range:GSM 900MHz(Transmits: 890-915MHz, Receives: 935-960MHz)GSM 1800MHz (Transmits: 1710-1785MHz, Receives: 1805-1880MHz)3. Voltage: DC 9V /DC12V4. Stand by hours: 48 Hours5. Talk time: 2-6 Hours6. Charging time: 6 hours7. Power consumption:Static ? 25MA emission ? 500MA8. Peak power consumption: 0. 25W/0. 5W9. Receive sensitivity: -104db10. Antenna increment: All directions: 5. 0db; Certain/Selection: 12dbConnect the terminal:Connecting Your Service ProviderTo use the networks services available in you terminal, you will need to sign up with wirelesses.provider and purchase a SIM (Subscriber Identity Module) Card or purchase a prepaid SIM card. In many cases, the wireless provider will make available descriptions of its services and instructions for using its features. Wireless provider may differ in their support of features. Before you sigh up, make sure a wireless provider support the features that you need.Installing the AntennaTo choose a proper place for the antenna is the first and very important step for antenna installing. You can use your mobile phone to search for the place where the strongest signal is. Then put the antenna here.Please do not make the antenna too close to the terminal. It will disturb the signal of the terminal.Please do not make the antenna and the terminal too close to the TV set, computer, and radiogram. It will disturb the signal of the terminal.Inserting a SIM CardMake sure the terminal is switched off and the AC adapter is unplugged: insert the SIM card only when the terminal is switched off and the AC adapter is unplugged. Follow the instructions below to insert a SIM Card into the terminal.1). Screw off the screw of SIM card case, and open the cover.2). Slide back the SIM card door and lift it up.3). Slide the SIM card into the SIM door making sure that the clipped corner of the SIM card lines up with the clipped corner of the SIM holder.4). Close the SIM card door and slide it to lock the SIM card in place.5). Replace the cover of SIM card case and fixes it with a screw.Connecting your terminal with desktop phoneIf you want to use the terminal to make calls, you should connect the terminal with a common wired desktop phone.There is one or two communication portals at the back of the terminal. You can connect one desktop phone and billing machine (optional) with our terminal. Itﾒs very easy to connect the phone and terminal, just need a common communication cable. Package includes: 1 x GSM Gateway Main Unit1 x Rubber Antenna1 x 110 to 220Vac Power Supply1 x English Manual Details pictures:

10Pcs NRF24L01+ SI24R1 2.4G Wireless Power Enhanced Communication Receiver Module 10Pcs NRF24L01 SI24R1 2.4G Wireless Power Enhanced Communication Receiver Module Description:NRF24L01 SI24R1 is fully compatible (SPI operation timing, registers, definitions, state diagram), can communicate with each other, support NRF24L01 all communications. Default mode output power of SI24R1 is 2 ~ 3dBm, if you want the output is 7dBm, you should write 1 (NRF24L01 This bit is not used, the default is 0) into the lowest bit register address 0x06 (RF_SETUP). For example, the 01register, 0x061111.Pacakge included:10 x Wireless Power Enhanced Communication Receiver Module

NRF24L01+ SI24R1 2.4G Wireless Power Enhanced Communication Receiver Module Description: NRF24L01+ SI24R1 is fully compatible (SPI operation timing, registers, definitions, state diagram), can communicate with each other, support NRF24L01+ all communications. Default mode output power of SI24R1 is 2 ~ 3dBm, if you want the output is 7dBm, you should write 1 (NRF24L01 + This bit is not used, the default is 0) into the lowest bit register address 0x06 (RF_SETUP). For example, the 01register, 0x061111. Pacakge included: 1 x Wireless Power Enhanced Communication Receiver Module

Description: Note: This module does not suitable for IOS system. The core module HC-06 main modules, leads the interface includes VCC, GND, TXD, RXD, KEY pin high trigger to clear the pairing information re search led indicate Bluetooth connection status, flash unpaired slow flash indicates paired but not slave connection, Always follow machine connected Backplate settings LDO input voltage of 3.6~~6V unpaired current is about 30mA, paired 10mA, input voltage prohibit more than 7V absolute prohibition of reverse power! Interface level 3.3V, can be directly connected the various SCM (51, AVR, PIC, ARM, MSP430, etc.), the 5V MCU also can be connected directly, without MAX232 can not go through the MAX232! Open to effective distance of 10 meters, over 10 meters is also possible, but not of this the quality of the connection of the distance do to ensure The pair later when full-duplex serial use, do not need to know anything about the Bluetooth protocol, but only supports 8 data bits, 1 stop bit, no parity communication format, which is the most commonly used communication format does not support other formats. Support to establish a Bluetooth connection through AT commands set the baud rate, passkey, set parameters are saved after. Bluetooth connection is automatically switched to the pass-through mode. Wireless serial Bluetooth port with free extension cable. With transparent shrink tube, dust and beautiful, and there is a certain degree of anti-static capabilities. Size:3.57cm x 1.52cm Tips: TXD: the sender, usually expressed as its sender, the normal communication must be connected to another device RXD. RXD: the receive side, generally expressed as the receiving end of their normal communication to another device connected to TXD. Package included: 3 x HC-06 wireless bluetooth transceiver

Note: This module does not suitable for IOS system. Description: The core module HC-06 main modules, leads the interface includes VCC, GND, TXD, RXD, KEY pin high trigger to clear the pairing information re search led indicate Bluetooth connection status, flash unpaired slow flash indicates paired but not slave connection, Always follow machine connected Backplate settings LDO input voltage of 3.6~~6V unpaired current is about 30mA, paired 10mA, input voltage prohibit more than 7V absolute prohibition of reverse power! Interface level 3.3V, can be directly connected the various SCM (51, AVR, PIC, ARM, MSP430, etc.), the 5V MCU also can be connected directly, without MAX232 can not go through the MAX232! Open to effective distance of 10 meters, over 10 meters is also possible, but not of this the quality of the connection of the distance do to ensure The pair later when full-duplex serial use, do not need to know anything about the Bluetooth protocol, but only supports 8 data bits, 1 stop bit, no parity communication format, which is the most commonly used communication format does not support other formats. Support to establish a Bluetooth connection through AT commands set the baud rate, passkey, set parameters are saved after. Bluetooth connection is automatically switched to the pass-through mode. Wireless serial Bluetooth port with free extension cable. With transparent shrink tube, dust and beautiful, and there is a certain degree of anti-static capabilities. Size:3.57cm*1.52cm Tips: TXD: the sender, usually expressed as its sender, the normal communication must be connected to another device RXD. RXD: the receive side, generally expressed as the receiving end of their normal communication to another device connected to TXD. Package included: 1 x HC-06 wireless bluetooth transceiver

Description: Note: This module does not suitable for IOS system. The core module HC-06 main modules, leads the interface includes VCC, GND, TXD, RXD, KEY pin high trigger to clear the pairing information re search led indicate Bluetooth connection status, flash unpaired slow flash indicates paired but not slave connection, Always follow machine connected Backplate settings LDO input voltage of 3.6~~6V unpaired current is about 30mA, paired 10mA, input voltage prohibit more than 7V absolute prohibition of reverse power! Interface level 3.3V, can be directly connected the various SCM (51, AVR, PIC, ARM, MSP430, etc.), the 5V MCU also can be connected directly, without MAX232 can not go through the MAX232! Open to effective distance of 10 meters, over 10 meters is also possible, but not of this the quality of the connection of the distance do to ensure The pair later when full-duplex serial use, do not need to know anything about the Bluetooth protocol, but only supports 8 data bits, 1 stop bit, no parity communication format, which is the most commonly used communication format does not support other formats. Support to establish a Bluetooth connection through AT commands set the baud rate, passkey, set parameters are saved after. Bluetooth connection is automatically switched to the pass-through mode. Wireless serial Bluetooth port with free extension cable. With transparent shrink tube, dust and beautiful, and there is a certain degree of anti-static capabilities. Size:3.57cm x 1.52cm Tips: TXD: the sender, usually expressed as its sender, the normal communication must be connected to another device RXD. RXD: the receive side, generally expressed as the receiving end of their normal communication to another device connected to TXD. Package included: 5 x HC-06 wireless bluetooth transceiver

5Pcs NRF24L01+ SI24R1 2.4G Wireless Power Enhanced Communication Receiver Module Description: NRF24L01+ SI24R1 is fully compatible (SPI operation timing, registers, definitions, state diagram), can communicate with each other, support NRF24L01+ all communications. Default mode output power of SI24R1 is 2 ~ 3dBm, if you want the output is 7dBm, you should write 1 (NRF24L01 + This bit is not used, the default is 0) into the lowest bit register address 0x06 (RF_SETUP). For example, the 01register, 0x061111. Pacakge included: 5 x Wireless Power Enhanced Communication Receiver Module

Specification: Arduino 51 STM32 AVR MCU compatible Prototype expand The frequency is 850/900/1800/1900 MHz Power supply range: voltage is 5-12V; current is 1A or more (the current is very important). Operating temperature range: -40 °C to +85 °C Communication interface: The TTL level serial interface compatible 2.85/3.3/5V LED: Two led, the Net led and the RING led. Size: 48*50mm SIMCARD: micro SIMCARD holder Feature: TTL level serial port compatible with 3.3V and 5V microcontrollers. The initial use of computer debugging, it is recommended to use CP2102 USB-TTL module to power supply and communication; Using the MCU control module, you can also using the USB - 232 monitoring return data on the instructions, great convenience to find the problem, especially suitable for 51 MCU. Standby in 30MA or so, you can set the sleep state of about 10MA low power consumption. Support SMS, GPRS data transmission, send MMS, DTMF, HTTP, FTP, PPP dial-up and other functions. The hardware contains one channel reset pin. This reset pin can be used to resolve a problem with the module. Development board supports 2G / 3G / 4G Unicom or mobile phone card. Package includes: 1 x SIM800A Module Wireless Development Board 1 x Antenna Reference picture, test tools does not includes!