Rf Module 315 mhz consist of transmitter and receiver module used  for transmitting  data via RF. Its frequency range is 315mhxz. They easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link. They are mostly used in Wireless calling system, burglar alarm, wireless data transmission, automated data acquisition system , DIY projects and many more. It has wider range of working voltage with stable performance.

Esp 12 motor shield is large current motor driven module can compatible with ESP12E Dev Kit and NodeMCU. It is  Dual high-power H-bridge drive with L293DD  chip. The module also has several pins and mostly used for DIY a WI - FI  RC smart car or any type of robotics and many more. It can drive two motors at oncewith a power swtich in-built.

The module helps to communicate with Arduinos wirelessly. It is mainly transmit and receive the data because it has high volume of application than IR. RF signals travel in the transmitter and receiver even when there is an obstruction. It operates at a specific frequency of 433MHz.

Bluetooth Module is a Drop-in replacement for wired serial connections, transparent usage. You can use it simply for serial port replacement to establish connection between MCU and GPS, PC to your embedded project / Robot etc. The module can be configured for baud rates 1200 to 115200 bps.

Bluetooth Module Features:

• Support UART,USB,PCM interface to host system
• Easy Configuration through AT Commands
• Encrypted connection
• Frequency: 2.4~2.524 GHz
• Bluetooth core V2.0 compliant
• Built-in Chip antenna
• Power Supply: 5V

Package Includes:

• 1 x BLUETOOTH UART MODULE BASED ON HC-05

The XS-3868  Bluetooth version 3.0 module use OVC3860 chip that supports  A2DP protocol . For high quality stereo audio  stream and audio player this Bluetooth Module is used. It can  be used in Bluetooth stereo headset speakers , automotive stereo speakers and many more.

The GSM Antenna is being used by rapidly growing mobile communication market in present context. It features like: - high conductivity, Excellent tensile strength, Optimum finish and many more. 

 The Nrf24l01 wireless transceiver module with antenna is easy and suitable module to setup wireless communication system. This module allows communication up to 1000 meters without barriers. It has active RFID and NFC with support of six channels of data reception.

4-Way Wireless Remote Control with Receiver module   can be used for many DIY projects. The  receiving module use LC oscillation circuit .It is easy to use and it take four road decoding output. The remote control has four buttons with corresponding to four data bits to the receiving board output pin.

• Power: 4.5~7V
• Quiescent Current (mA): 4.5 mA
• Modulation: AM (OOK)
• Operating Temperature: -10°C to +70°C
• Receiver sensitivity (dBm):-105 DB
• Transmitting range: upto 100 Meters
• Transmitting Frequency: 315MHz
• Operating Mode: Non Locking
• Channels: 4
• Dimensions: 4.5 x 2cm
• Weight: 37g

The RFID RC522 use MFRC522 chip designed circuit card reader. It is a highly transmission module for contact less communication. It is suitable for portable handheld devices and smart meters. It consumes low voltage, supports rapid CRYPTO1 encryption algorithm, terminology validation MIFARE products.  It Support ISO14443A frames and error correction with 14443A compatible answer signal.  This module has two-way data transmission rate up to 424kbit/s.  It can be used for taking attendance and many card read/ write projects. Using SPI protocol it can be can be directly loaded into the various reader molds.

Features:

• Current :13-26mA / DC 3.3V, Idle Current :10-13mA / DC 3.3V, Sleep current: <80uA, Peak current: <30mA
• Operating Frequency: 13.56MHz
• Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire
• Physical Characteristics: Dimensions: 40mm × 60mm
• Module Interface SPI Parameters
• Data Transfer Rate: Max. 10Mbit/s

Package Includes:

• 1 x RFID READER/WRITER 13.56MHZ RC522 (ARDUINO COMPATIBLE)

The XBee S2CTH Module with PCB Antenna allows to create complex mesh network on the XBee ZigBee mesh firmware with improve power output and data protocol. This module has reliable and simple communication between computers, system or anything with a serial port. It is compactable with other ZigBee devices. Point to point and multi point network are supported in this module.

The Sonoff Basic WiFi Smart Switch is an affordable solution for smart home automation. It allows you to remotely control your appliances via the eWeLink app, compatible with Android and iOS. With support for Amazon Alexa, Google Assistant, and IFTTT, you can schedule, automate, and voice-control devices from anywhere. It handles up to 10A and 2200W, featuring a fire-retardant ABS enclosure and secure WPA2-PSK encryption. Perfect for transforming your home into a smart living space.

Key Features:

• Voltage Range: 90-250V AC (50/60Hz)
• Maximum Current: 10A
• Maximum Wattage: 2200W
• Control Mode: Mobile app and voice control
• Wireless Standard: 802.11 b/g/n
• Enclosure Material: Fire-retardant ABS

Sonoff TH16 Switch is used for smart home technology. It allows to control the electrical devices through phone and network. It has features like deceive status, remote turn on/off connected appliance, checking real-time temperature and humidity, countdown, single and repeat timing tasks. It supports 3 temperature and humidity sensors (AM2301, DS18B20). It supports both Android and IOS device for remote controlling.